Frick Quantum AcuAir Control Panel User guide
- Type
- User guide
MAINTENANCE
FRICK® QUANTUM™
ACUair®
CONTROL PANEL
VERSION 2.1x
S90-500 M/JULY 2002
File: SERVICE MANUAL - SECTION 90
Replaces: NOTHING (New Information)
Dist: 3, 3a, 3b, 3c
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 2 MAINTENANCE
Table of Contents
QUANTUM™ CONTROLLER BOARD IDENTIFICATION ...................................................................................5
Introduction....................................................................................................................................................5
Quantum™ 3.............................................................................................................................................5
Quantum™ 4.............................................................................................................................................5
Troubleshooting .............................................................................................................................................5
The Quantum™ Control Panel .......................................................................................................................5
General Information: ......................................................................................................................................5
Acuair® System Description............................................................................................................................6
What To Do Before Calling The Factory .........................................................................................................6
Replacing The Quantum™ Board...................................................................................................................6
QUANTUM™ 3 CONTROLLER ...........................................................................................................................7
What Should Occur When Powering Up The Panel ........................................................................................7
What If The “Air Handling Unit Overview” Screen Is Not Shown......................................................................7
Controller Board Pictorial ...............................................................................................................................8
Board Settings ...............................................................................................................................................8
Processor Board Jumpers........................................................................................................................8
Communications Board Jumpers .............................................................................................................8
Flow Diagram - D.C. Voltage / Communications Wiring ..................................................................................9
QUANTUM™ 4 CONTROLLER .........................................................................................................................10
What Should Occur When Powering Up The Panel ......................................................................................10
What If The “Air Handling Unit Overview” .....................................................................................................10
Screen Is Not Shown ...................................................................................................................................10
Controller Board Pictorial .............................................................................................................................11
Board Settings .............................................................................................................................................11
Processor Board Jumpers............................................................................................................................11
Communications Board Jumpers..................................................................................................................11
Com-1 (TB1)..........................................................................................................................................11
Com-2 (TB2 - TB3) ................................................................................................................................11
Flow Diagram - D.C. Voltage / Communications Wiring ................................................................................12
GCU (GENERAL CONTROL UNIT) ...................................................................................................................13
GCU Board Description................................................................................................................................13
Communications Led's .................................................................................................................................13
Connections To The Quantum™..................................................................................................................13
Logic Voltage (Power) Leds .........................................................................................................................13
Status Led ...................................................................................................................................................13
Digital Inputs................................................................................................................................................13
Digital Outputs .............................................................................................................................................14
Checking The Digital Inputs And Outputs .....................................................................................................14
Fuse Testing And Replacement ...................................................................................................................14
Input And Output Module Testing And Replacement ....................................................................................15
Troubleshooting An Output ..........................................................................................................................15
Troubleshooting An Input .............................................................................................................................15
Replacing A Defective Gcu Board ................................................................................................................15
ACUair® GCU Control Panel Flow Diagram - D.C. Voltage / Communications Wiring....................................16
PICTORIAL DRAWING OF ACUAIR® (GCU) BOARD:......................................................................................17
GCU Board Settings.....................................................................................................................................17
Communications Port Connections...............................................................................................................17
Additional Communications Jumper Configurations ......................................................................................17
GCU Board Dipswitch Settings.....................................................................................................................17
GCU BOARD ANALOG I/O JUMPER SETTINGS .............................................................................................17
GCU Board Analog I/O Jumper Settings (Continued)....................................................................................19
Analog Output Configurations.......................................................................................................................19
“Service Screen” - GCU Board Digital and Analog Inputs and Outputs..........................................................19
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 3
ANALOG BOARD ............................................................................................................................................. 20
Analog Board Description ............................................................................................................................ 20
Connections to the Quantum™.................................................................................................................... 20
Analog Inputs .............................................................................................................................................. 20
Analog Outputs............................................................................................................................................ 20
Checking the Analog Inputs and Outputs ..................................................................................................... 20
Replacing a Defective Analog Board............................................................................................................ 21
Analog Board Settings ................................................................................................................................. 21
Communications Settings...................................................................................................................... 21
Dipswitch Settings................................................................................................................................. 21
Additional Service Related Screens ............................................................................................................. 22
GCU “About” Screen ............................................................................................................................. 22
Quantum™ “About” Screen ................................................................................................................... 22
“Change Communications” Screen ....................................................................................................... 23
QUANTUM™ POWER SUPPLY ADJUSTMENT AND REPLACEMENT ........................................................... 24
Adjustment .................................................................................................................................................. 24
Replacement ............................................................................................................................................... 24
Quantum™ +5 DC Voltage Measurement Location...................................................................................... 25
IDENTIFYING THE TYPE OF DISPLAY ............................................................................................................ 27
Display Replacement................................................................................................................................... 27
Display Assembly Component Replacement Guide...................................................................................... 27
Troubleshooting A Problem That Appears Unexplainable............................................................................. 28
SETPOINT DATA SHEETS............................................................................................................................... 29
Control Setup .............................................................................................................................................. 29
Cooling Control Setup ........................................................................................................................... 30
Cooling ........................................................................................................................................... 30
Stage #1 ......................................................................................................................................... 30
Stage #2 ......................................................................................................................................... 30
Stage #3 ......................................................................................................................................... 30
Stage #4 ......................................................................................................................................... 30
Cleanup .......................................................................................................................................... 30
Heating Control Setup ........................................................................................................................... 31
Heating ........................................................................................................................................... 31
Cleanup .......................................................................................................................................... 31
Pre-Heat Control Setup ......................................................................................................................... 32
Pre-Heat ......................................................................................................................................... 32
Cleanup .......................................................................................................................................... 32
Exhaust Control Setup .......................................................................................................................... 33
Stage #1 ......................................................................................................................................... 33
Stage #2 ......................................................................................................................................... 33
Damper Control Setup........................................................................................................................... 34
Room Pressure High Limit .............................................................................................................. 34
Room Pressure Control................................................................................................................... 34
Economizer..................................................................................................................................... 34
Heat Profile Control Setup..................................................................................................................... 35
Humidity Control Setup.......................................................................................................................... 36
Dehumidification ............................................................................................................................. 36
Humidification ................................................................................................................................. 36
Safety Setpoints Setup .......................................................................................................................... 37
Ammonia ........................................................................................................................................ 37
Discharge Air .................................................................................................................................. 37
Auxiliary .......................................................................................................................................... 37
Defrost Setpoints Setup......................................................................................................................... 38
Defrost Timers ................................................................................................................................ 38
Defrost Digital Input ........................................................................................................................ 38
Defrost Schedule ............................................................................................................................ 38
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 4 MAINTENANCE
Auxilliary Analog Inputs (12 & 13) Setup ................................................................................................39
Aux. Input #12 .................................................................................................................................39
Aux. Input #13 .................................................................................................................................39
Auxilliary Analog Inputs (14 & 15) Setup ................................................................................................40
Aux. Input #14 .................................................................................................................................40
Aux. Input #13 .................................................................................................................................40
Auxilliary Analog Outputs (5, 6, & 7) Setup.............................................................................................41
Aux. Output #5 ................................................................................................................................41
Aux. Output #6 ................................................................................................................................41
Aux. Output #7 ................................................................................................................................41
Auxilliary Analog Output #5 Setup..........................................................................................................42
Auxilliary Analog Output #6 Setup..........................................................................................................43
Auxilliary Analog Output #7 Setup..........................................................................................................44
Panel Setup...........................................................................................................................................45
Temperature Units...........................................................................................................................46
Communications..............................................................................................................................46
Selectable Options.................................................................................................................................47
Calibration .............................................................................................................................................48
Pressure..........................................................................................................................................48
Pressure Transducer .......................................................................................................................48
Temperature....................................................................................................................................48
Temperature Sensor........................................................................................................................48
Other Calibration .............................................................................................................................49
Sensor.............................................................................................................................................49
Other Calibration .............................................................................................................................49
Analog Input ....................................................................................................................................49
Analog Output Calibration................................................................................................................50
Analog Output .................................................................................................................................50
QUANTUM™ DRAWINGS.................................................................................................................................51
Quantum™ D.C. Power Supply Harness ......................................................................................................51
Quantum™ I/O & D.C. Power Harness.........................................................................................................51
ACUair® Standard Control Panel Wiring Diagram .........................................................................................52
Digital Wiring Notes ...............................................................................................................................54
Analog Wiring Notes ..............................................................................................................................59
Acuair® Standard GCU Control Panel Layout Diagram .................................................................................61
Acuair® Standard Component And Symbol Identification ..............................................................................62
Quantum™ To GCU Communications..........................................................................................................63
Quantum™ RS-422 Communications To Customer Remote Computer/DCS ................................................63
Quantum™ RS-485 Communications To Customer Remote Computer/DCS ................................................63
Quantum™ 3 RS-232 Communications To Customer Remote Computer/DCS .............................................63
Quantum™ 4 RS-232 Communications To Customer Remote Computer/DCS .............................................63
RECOMMENDED SPARE PARTS.....................................................................................................................64
INDEX................................................................................................................................................................65
THE FOLLOWING PUBLICATIONS ARE AVAILABLE
FROM THE FRICK® WEBSITE
frickcold.com
S90-500 O Frick® Quantum™ Control Panel
OPERATION
S90-500 CS Frick® Quantum™ Control Panel
COMMUNICATIONS SETUP (setup and
wiring for data communication using available
protocols)
S90-500 M Frick® Quantum™ Control Panel
MAINTENANCE (repair and troubleshooting)
Indicates an imminently
hazardous situation which, if not
avoided, will result in death or
serious injury.
Indicates a potentially hazardous
situation or practice which, if not
avoided, will result in death or
serious injury.
Indicates a potentially hazardous
situation or practice which, if not
avoided, will result in damage to
equipment and/or minor injury.
NOTE: Indicates an operating procedure, practice, etc., or
portion thereof which is essential to highlight.
CAUTION
!
WARNING
!
DANGER
!
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 5
QUANTUM™ CONTROLLER BOARD IDENTIFICATION
INTRODUCTION
Frick® Controls has over the years, strived to remain on
the cutting edge of microprocessor technology and
development. In addition, because of the ever-increasing
speed, memory, features, and power of microprocessors,
Frick® Controls will continue to introduce the latest
advancement in microprocessor control technology.
Our microprocessor family has shared the name
Quantum™ over the past six years. There are currently
four controllers within this family. The first two of these
controllers (known as Quantum™ 1 and Quantum™ 2) are
no longer in production, and as such, will not be further
mentioned in this manual. The two current members in
production of the Quantum™ family are the Quantum™ 3,
and the Quantum™ 4. It is critical to the end user to be
able to identify the differences between these controllers.
Refer to the section in this manual entitled “Quantum™ 3
Main Board History and Identification” and “Quantum™ 4
Main Board History and Identification” for additional
information as to how to identify the particular Quantum™
controller that you have.
Throughout this manual, the two different controllers will
be talked about for the most part as one (as they do
function the same). Please note however that there is a
separate section for both the Quantum™ 3 and for the
Quantum™ 4, where all of the individual specifics are
identified and explained. This is why it is important for you
to be aware of which version of Quantum™ board you
have.
Quantum™ 3
Quantum™ 4
TROUBLESHOOTING
THE QUANTUM™ CONTROL PANEL
This section contains information on troubleshooting and
making corrections to the boards and control circuits of the
Quantum™. Reference the drawings at the end of this
manual.
GENERAL INFORMATION:
The components within the control panel can be
inadvertently damaged by static electricity or
mishandling. Only qualified technicians should
directly handle these components.
1. DO NOT attempt to make corrections to the
power supply without shutting off the power to the
control panel. Accidental shorts can irreparably
damage the processor boards or the display
screen.
2. DO NOT HANDLE the panel boards when their
cables are disconnected without first attaching a
properly grounded wrist ground strap to prevent
static electrical discharge from your body.
Most problems encountered with the microprocessor and
control circuits will be the result of a wiring fault, a blown
fuse, faulty I/O module or failure of a peripheral control
such as a solenoid coil or a temperature sensor. Faults in
the computer, while possible, are unlikely. If a fault
develops in the computer, the probability is that all
functions will cease and the display screen will go blank.
The control system consists of an AC (high voltage) side,
which can be either 120 volts, or 230 volts, and a DC (low
voltage) side. The AC side actuates solenoids, relays,
alarms, and other electromechanical functions. The DC
side operates the computer and it's various sensors.
When working within the panel, the AC high voltage
side, which can be either nominal 120 VAC or nominal
230 VAC, CAN CAUSE INJURY OR DEATH.
To troubleshoot the low-voltage side of the control circuits,
it is necessary to have the following tools:
1. Accurate digital multimeter (capable of reading to
the hundreds of a volt)
2. Small wire stripper
3. Small screwdriver (with insulated shaft)
4. Small snip nose pliers
5. Wrist Grounding strap
6. Static free grounded work surface
Note: Proper panel voltage refers to the AC (high volt-
age) that has been supplied to the panel, which could
be either nominal 120 VAC or nominal 230 VAC
(Reference the Control Panel Power Specifications).
Some problems that are encountered involve
troubleshooting the panels digital inputs and outputs. The
GCU Board has 1 digital input connector (J10), and two
digital output connectors (J7 & J9). Additionally, there are
three analog input connectors (J4, J5 & J11) and 1 analog
output connector (J8).
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 6 MAINTENANCE
ACUair SYSTEM DESCRIPTION
The heart of the ACUair control system is the Quantum™
controller. This is where all setpoints for system operation
are entered and all data is viewed from. The Quantum™
controller can have up to four GCU (General Control Unit)
controllers connected to it. Each GCU controls a single air
handling unit and provides the actual control of digital and
analog inputs and outputs for the unit that it is mounted to.
Each GCU controller runs a software program that is
independent of the Quantum™ controller. The Quantum™
program communicates to the GCU to monitor data, and
even if the Quantum™ controller were to be powered
down, each of the potentially available four GCU’s will
continue to function normally, as they do not rely on the
Quantum™ for control (only data acquisition).
Additionally, the Quantum™ can be communicated with by
a various array of protocols and software packages, such
as HMI (Human Machine Interface). These packages are
usually custom designed by the end user and loaded onto
a desktop PC, and allow the PC to provide various data
acquisition and control functions remotely. For the end
user that does not wish to design their own package, a
turn-key (out of the box) package is available from Frick®
Controls. The name of the software is Q-Talk, a turn-key
package that has been specially designed to mimic the
graphic screens that are present on the Quantum™
controller. Data may be viewed and changed, as well as
provide remote system control. Contact Frick® for more
information on this product.
WHAT TO DO BEFORE CALLING THE FACTORY
When someone calls in to the factory with a suspected
Quantum™ problem, sometimes the person calling doesn't
provide enough information. This is because they most
likely are not aware of the type of information that would
be useful to factory personnel in helping to identify and
correct the problem. An example of this is the statement
that the Quantum™ is not “booting” (the main processor
board is not starting). Unfortunately, this description is
usually vague and only means that there is nothing on the
display. A blank screen could be the result of many
different problems. Following is a list of possible reasons
for no display:
• No power
• Loose or Faulty Display Cable or Inverter Cable
• Bad Display
• Bad Backlight Inverter
• Bad Backlight Fluorescent Tube
• Wrong Combination of Display, Cable, Inverter,
or Software
• Faulty CPU Board
Before calling the factory for assistance, review the
information on the following pages and try to discover and
resolve your Quantum™ problem. The actual cause of
most problems is usually not with the Quantum™ itself,
but with something external to the Quantum™. However,
on the rare occasion that the problem has been identified
as being the Quantum™ controller, use the following
section as a guideline for replacing it.
REPLACING THE QUANTUM™ BOARD
The Flash Card memory load is done prior to the board
shipping. The customer should still have their settings
manually recorded, and saved to a Flash Card, so that the
new board can be setup the same as the old one. It is
suggested that the operator first record all control
setpoints prior to board replacement. Factory Setup
settings will also be lost. The setpoint data sheets are
useful for recording this information. A Maintenance
Flashcard may also be purchased that will allow these
setpoints to be saved electronically, and may be
downloaded later. Make sure that the operator can access
Factory Setup to restore all compressor specific settings.
The procedure to replace the main board is outlined
below:
1. Shut off control power.
2. Remove the old board from the machine and the
new board from its packing and place both on an
anti-static surface.
3. Ensure that the jumpers on the new board are set
the same as those on the old board.
4. Install the modified replacement board into the
panel.
5. If program changes are necessary through a
Flash Card download, then follow the directions
in the Factory Setup manual (S90-500 FSI) for
the procedure to reload a program Flash Card.
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 7
QUANTUM™ 3 CONTROLLER
WHAT SHOULD OCCUR WHEN POWERING UP
THE PANEL
The first thing that should be checked when
troubleshooting the Quantum™ is it’s powering up
sequence.
When powering up the Quantum™, the following
sequence of events is indicative of a properly working
main processor board:
• The LED’s for +5V, +12V, and –12V will turn on
solid. (Lower left corner of Main PCB)
• LED KB will begin to blink. (Left side of Main
PCB)
• Several initialization screens will appear (these
will look very similar to the way the screen of a
desktop computer appears when it is booting.
• The last of the initialization screens is the
“System Configuration” screen.
• Various POST codes will appear.
• The screen will go then show Looking for
boards…
• The “Air Handling Unit Overview” screen is
shown.
After the Quantum™ has properly powered up, the
following sequence of events is indicative of proper
communication to the connected GCU boards:
• The TX/RX LED’s near the white connector will
begin to blink.
• All connected GCU boards' TX/RX lights should
be blinking.
• Each GCU board should have the power LED’s
(+5 and +12) lighted and the “Status” LED should
be blinking.
WHAT IF THE “AIR HANDLING UNIT OVERVIEW”
SCREEN IS NOT SHOWN
If the “Air Handling Unit Overview” screen is not shown,
check the following items:
1. If no LED’s are lighted, then check AC and DC
power.
2. Check if the lighting of the LED’s is occurring as
described in the “What Should Occur When
Powering Up The Panel” section.
• If the powering up sequence continues to
repeat without displaying the “Air Handling
Unit Overview” screen, then there is a
“booting” problem.
3. Check if an error message is displayed when
booting.
• Be sure to write down any error messages
exactly as they appear.
4. Check that the software is OK:
• Is the correct software installed?
• Did you just install new software?
• Is the program that the Quantum™ is
running the same that all GCU boards are
running?
• If you need to clear the numerical setpoint
and calibration areas of memory for any
reason, clear the memory as described in
the S90-500 FSI publication. NOTE: This
information will be replaced by factory
default values, so any setpoint and
calibration data values that need to be
customized must be reentered.
5. Check for bad or loose connections.
6. Check the display. If the CPU board is booting
but you have no display, check the following:
• Check the LCD backlight tube. Look very
closely at the display to see if anything is
visible in the dark screen. Using a beam type
source of good lighting, such as a flashlight,
look for any “ghost” type image. If it appears
that there is something on the screen but
very dark, the problem maybe the LCD
backlight tube. On the LG Philips, NEC, and
Sharp displays this tube is field replaceable.
On the Samsung LCD display, it is not
available and the display will have to be
replaced. There may be a sticker on the
display mounting plate. If there is, it will have
a part number that describes the type of
display. If there is no sticker, you must take
the display apart to identify the display
manufacturer.
• Verify that both the display cable and the
inverter cable are firmly seated. It may be
necessary to remove the video cable from
the back of the LCD display and reseat it to
be sure it is connected properly. Note: This
is a small connector and caution should
be observed so that it is not damaged
due to excessive force.
• Check the backlight inverter connector (P4).
When the Quantum™ board is mounted in
the panel, this connector is located at the
middle left of the board. The pins on the right
side are odd numbered, with pin P(1) at the
bottom -pin P(9) at the top. The pins on the
left side are even numbered, with pin P(2) at
the bottom - pin P(10) at the top. After the
Quantum™ has booted, pin P(3) should
measure +2.4 Vdc, pins P(4) and P(5) are
DC grounds, and pins P(6) and P(7) should
measure +12 Vdc. A bad inverter will also
cause a dark display.
• Reference the “Display Assembly
Component Replacement Guide” in the
“Identifying the Type of Display” section that
appears later in this manual, and check that
the LCD, LCD cable, and software versions
are matched correctly.
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 8MAINTENANCE
QUANTUM™ 3 CONTROLLER BOARD PICTORIAL
Note: There are duplicate numbers for the links on the processor (smaller) board and the communications (larger) board. If you must make a
change to a jumper (link), then ensure that you modify the correct link.
QUANTUM™ 3 BOARD SETTINGS
Processor Board Jumpers
LK2 A
B *
COM3 IRQ4
COM3 IRQ11
LK3 A
B *
COM4 IRQ3
COM4 IRQ10
LK4 in
out*
RS-422 Terminated
RS-422 Not Terminated
LK5 In
out*
RS-485 Receiver Enabled
RS-485 Receiver Disabled
LK6 in
out*
RS-485 Terminated
RS-485 Not Terminated
LK7 in*
out
Watchdog timer Enabled
Watchdog timer Disabled
LK8 in
out*
2 second Watchdog timer timeout
8 second Watchdog timer timeout
LK10 A
B *
+5V Backlight Voltage (Samsung, NEC, Sharp)
+12V Backlight Voltage (LG Philips Display)
LK11 A
B *
+5V LCD Supply (Samsung, NEC, Sharp)
+3.3V LCD Supply (LG Philips Display)
LK12 in*
out
Bit 1 of 259H “Logic 1” User Application Link
Bit 1 of 259H “Logic 0” User Application Link
LK13 in*
out
Bit 2 of 259H “Logic 1” User Application Link
Bit 2 of 259H “Logic 0” User Application Link
* Standard Setting
Communications Board Jumpers
LK1 in
out*
Pull down COM1
No pull down RS-422/485 (Rx-/Tx-)
LK2 in
out*
Terminate COM1
No termination RS-422/485
LK3 in
out*
Pull up COM1
No pull up RS-422/485 (Rx+/Tx+)
LK4 in
out*
Pull down COM1
No pull down RS-422 (Tx-)
LK5 in
out*
Pull up COM1
No pull up RS-422 (Tx+)
LK6 in
out*
Pull down COM2
No pull down RS-422/485 (Rx-/Tx-)
LK7 in
out*
Terminate COM2
No termination RS-422/485
LK8 in
out*
Pull up COM2
No pull up RS-422/485 (Rx+/Tx+)
LK9 in
out*
Pull down COM2
No pull down RS-422 (Tx-)
LK10 in
out*
Pull up COM2
No pull up RS-422 (Tx+)
LK16 A *
B
COM1 RS-485
COM1 RS-422
LK17 A *
B
COM2 RS-485
COM2 RS-422
LK19 in*
out
Select RS-422/RS-485 for COM2
Select RS-232 for COM2
LK20 A *
B
Battery Backup Enabled
Battery Backup Disabled (CMOS Cleared)
LK25 in*
out
Select Compact Flash card as leader device
Select Compact Flash card as follower device
* Standard Setting
COM2
-12V
+5V
TP3
+5
TP4
+12
TP5
-12
RX4TX4
TP6
GND
+12
Power-I/O
Com. Cable
+12VDC
-12VDC
GND
-RX/-TX
+RX/+TX
LK11
B
A
LK10
B
A
KB
This assembly
is shipped with
LK11 set to position “B”. If a
Samsung, NEC, or Sharp
display is being used, then
LK11 must be changed to
position “A”.
Keypad
Cable
LK7
LK8
LCD
Display
Cable
LCD
Backlight
Cable
LK24
B
A
HEAT SINK
COM2
RS232
LK19
FLASH
MEMORY
SOCKET
SW
Dip Switch
Pack
BAT1
SW2
ON
1
2
3
4
5
6
7
8
LK20
B
A
P7
P7
TP1
GND
COM3
1
2
3
4
RS-
422
RS-
485
LK12
LK11
LK13
LK14
LK15
TX3RX3
LK18
B
A
B
A
1
2
3
4
RS-
422
RS-
485
LK6
LK8
LK9
LK10
LK7
TX2RX2
LK17
COM1
LK1
LK2
LK3
LK4
LK5
1
2
3
4
RS-
422
RS-
485
LK16
B
A
TX1RX1
LK25
+5VDC
Communications Board
(large bottom board)
Processor Board
(small top board)
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 9
QUANTUM™ 3 FLOW DIAGRAM - D.C. VOLTAGE / COMMUNICATIONS WIRING
NOTE:
This pictorial represents a typical configuration using the Quantum™ 3 and is not to scale. The pictorial is meant to
show the proper interconnection of the D.C. power, I/O communications wiring, keyboard cable and display harness and
hardware components.
Caution!
High AC
voltage at
this
connector.
Display Cable
(refer to Display Assembly
Component Replacement Guide)
Quantum™ 3
DC Power
Harness
Power
Supply
(Condor
shown).
Factory
Connector
Inverter
P/N
333Q0001582
Inverter Cable
(refer to Display
Assembly
Component
Replacement
Guide)
Backlight Tube (refer to Display Assembly
Component Replacement Guide)
Keypad Cable
P/N 640B0031H01
Communications wiring
(RX - TX) to GCU Panels
Display (refer to
Display Assembly
Component
Replacement
Guide)
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 10 MAINTENANCE
QUANTUM™ 4 CONTROLLER
WHAT SHOULD OCCUR WHEN POWERING UP
THE PANEL
The first thing that should be checked when
troubleshooting the Quantum™ is it’s powering up
sequence.
When powering up the Quantum™, the following
sequence of events is indicative of a properly working
main processor board:
• Green PWR (Power) LED will turn on solid (upper
right corner of main PCB).
• Red FLASH LED will begin to intermittently
during the Boot process. It will then go out once
the “Air Handling Unit Overview” screen appears.
• LED D8 (on the smaller board) will start to blink
at the rate of about once per second. It will
continue to blink after the Quantum™ has
booted.
• Several initialization screens will appear (these
will look very similar to the way the screen of a
desktop computer appears when it is booting.
• The last of the initialization screens is the
“System Configuration” screen.
• Various POST codes will appear.
• The screen will go then show “Reading Data
From File"
• “Looking For Boards”, will be seen next
• After the screen displays "Looking For Boards",
LED's D4, D5, D7 and D8 will be on solid.
• The “Air Handling Unit Overview” screen will
appear.
• Once actual data has been displayed on this
screen, LED D13 will come on solid and D10,
D11, and D12 will start to flash at a quick rate.
After the Quantum™ has properly powered up, the
following sequence of events is indicative of proper
communication to the analog and digital boards:
• The TX/RX LED’s near the white connector will
begin to blink.
• All connected GCU boards' TX/RX lights should
be blinking.
• Each GCU board should have the power LED’s
(+5 and +12) lighted and the “Status” LED should
be blinking.
WHAT IF THE “Air Handling Unit Overview”
SCREEN IS NOT SHOWN
If the “Air Handling Unit Overview” screen is not shown,
check the following items:
1. If no LED’s are lighted, then check power AC and
DC.
2. Check if the lighting of the LED’s is occurring as
described in the “What Should Occur When
Powering Up The Panel” section.
• If the powering up sequence continues to
repeat without displaying the “Air Handling
Unit Overview” screen, then there is a
booting problem.
3. Check if an error message is displayed when
booting.
• Be sure to write down any error messages
exactly as they appear.
4. Check that the software is OK:
• Is the correct software installed?
• Did you just install new software?
• If you need to clear the numerical setpoint
and calibration areas of memory for any
reason, clear the memory as described in
the S90-500 FSI publication. NOTE: This
information will be replaced by factory
default values, so any setpoint and
calibration data values that need to be
customized must be reentered.
5. Check for bad connections.
6. Check the display. If the CPU board is booting
but you have no display, check the following:
• Check the LCD backlight tube. Look very
closely at the display to see if anything is
visible in the dark screen. Using a beam type
source of good lighting, such as a flashlight,
look for any “ghost” type image. If it appears
that there is something on the screen but
very dark, the problem maybe the LCD
backlight tube. On the LG Philips, NEC, and
Sharp displays this tube is field replaceable.
On the Samsung LCD display, it is not
available and the display will have to be
replaced. There may be a sticker on the
display mounting plate. If there is, it will have
a part number that describes the type of
display. If there is no sticker, you must take
the display apart to identify the display
manufacturer.
• Verify that both the display cable and the
inverter cable are firmly seated. These
cables both originate from the same
connector on the Quantum™. It may be
necessary to remove the video cable from
the back of the LCD display and reseat it to
be sure it is connected properly. Note: This
is a small connector and caution should
be observed so that it is not damaged
due to excessive force.
• Reference the “Display Assembly
Component Replacement Guide” at the end
of this section, and check that the LCD, LCD
cable, and software versions are matched
correctly.
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 11
QUANTUM™ 4 CONTROLLER BOARD PICTORIAL
Note: There are duplicate numbers for the links on the processor (larger) board and the communications (smaller) board. If you must make a
change to a jumper (link), then ensure that you modify the correct link.
QUANTUM™ 4 BOARD SETTINGS
Processor Board Jumpers (Bottom Board)
LK1 in
out*
2 second Watchdog timer timeout
8 second Watchdog timer timeout
LK2 in*
out
Watchdog timer Enabled
Watchdog timer Disabled
LK3 A
B *
+5V Backlight Voltage (Samsung, NEC, Sharp)
+12V Backlight Voltage (LG Philips Display)
LK4 A
B *
+5V LCD Supply (Samsung, NEC, Sharp)
+3.3V LCD Supply (LG Philips Display)
LK5 A
B *
COM4 IRQ3
COM4 IRQ10
LK6 A
B *
COM3 IRQ4
COM3 IRQ11
LK7 A *
B
Battery Backup Enabled
Battery Backup Disabled (CMOS Cleared)
LK8 in*
out
RS-485 Receiver Enabled
RS-485 Receiver Disabled
LK9 in*
out
RS-485 Terminated
RS-485 Not Terminated
LK10 in
out*
RS-422 Terminated
RS-422 Not Terminated
LK11 in*
out
Bit 1 of 259H “Logic 1” User Application Link
Bit 1 of 259H “Logic 0” User Application Link
LK12 in*
out
Bit 2 of 259H “Logic 1” User Application Link
Bit 2 of 259H “Logic 0” User Application Link
* Standard Setting
Communications Board Jumpers (Top Board)
Com-1 (TB1)
LK2 in
out*
Terminate COM1
No termination RS-422/485
LK7 in
out*
Pull down COM1
No pull down RS-422/485 (Rx-/Tx-)
LK8 in
out*
Pull up COM1
No pull up RS-422/485 (Rx-/Tx+)
LK9 in
out*
Pull down COM1
No pull down RS-422 (Tx-)
LK10 in
out*
Pull up COM1
No pull up RS-422 (Tx+)
LK16 A
B*
COM1 RS-422 (TB1)
COM1 RS-485 (TB1)
* Standard Setting
Com-2 (TB2 - TB3)
LK1 in
out*
Terminate COM2
No termination RS-422/485
LK3 in
out*
Pull down COM2
No pull down RS-422/485 (Rx-/Tx-)
LK4 in
out*
Pull up COM2
No pull up RS-422/485 (Rx-/Tx+)
LK5 in
out*
Pull down COM2
No pull down RS-422 (Tx-)
LK6 in
out*
Pull up COM2
No pull up RS-422 (Tx+)
LK11 A
B*
Select RS-232 for COM2 (TB2)
Select RS-422/RS-485 for COM2 (TB3)
LK17 A
B*
COM2 RS-422 (TB2)
COM2 RS-485 (TB2)
* Standard Setting
PWR
SUSP
FLASH
LK11
LK12
PL24
PL3
PL
LK9
LK8
LK10
PL16
LK1
PL7
PL9
LK2
PL17
PL12
PL19
PL18
PL14
PL10
PL6
PL2
PL4
PL1
Flash Card
Socket
(Located
under
board)
PL3
PL5
PL11
LK3
A
B
LK4
PL15
+5VDC
+12VDC
RET / GND
RET / GND
+RX/+TX
-RX/-TX
Power
Cable
PL8
I/O
Cable
TB1
TB2
LK2
COM-2 TB3
RS-232
3
2
1
PL13
This assembly is
shipped with LK4 set to
"B" position for an LG
Philips display.
If using a Samsung, NEC
or Sharp Display, set
LK4 to position "A".
Keyboard Cable
Display Cable
LK6
B
A
LK5
LK7
COM-2 COM-1
1
2
3
4
1
2
3
4
LK8
LK7
LK10
LK9
D3
LK16
A
B
A
B
PL2
3
4
5
6
7
0
1
2
D8
D10
D11
D12
PORT 80H
D4
D5
D7
D13
SW1
ON
1
2
3
4
5
6
7
8
D6
D2
LK11
B
A
LK1
LK4
LK3
LK6
LK5
D1
D8
LK17
To set Comm-2 for RS-232
operation, set LK11 to "A"
position.
To set Comm-2 for RS-422/485
operation, set LK11 to "B"
position.
RS-422
RS-485
RS-422
RS-485
PL1
Processor Board (large
bottom board)
Communications Board
(small top board)
COM2 (TX)
COM1
(RX) COM1
(TX)
KB
COM2
(RX)
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 12 MAINTENANCE
QUANTUM™ 4 FLOW DIAGRAM - D.C. VOLTAGE / COMMUNICATIONS WIRING
Keypad Cable
P/N
640B0031H01
Quantum™ 4
Inverter
P/N
333Q0001582
Quantum™ 4 Adapter
Harness
P/N 649B0862H01
NOTE:
This pictorial represents a typical configuration using the
Quantum™ 4, and is not to scale. The pictorial is meant to show the
proper interconnection of the D.C. power - I/O communications wiring,
keyboard cable and display harness and hardware components.
Display/Inverter Cable
P/N 649D4824H01
P
P
Flash Card
socket
located under
board
1
2
3
4
3
2
1
3
1
2
4
Backlight Tube (refer to Display Assembly
Component Replacement Guide)
)
Display (refer to
Display Assembly
Component
Replacement
Guide)
Caution!
High AC
voltage at this
connector.
DC Power
Harness P/N
640C0039H02
Power
Supply
Factory
Connector
Communications wiring
(RX - TX) to GCU Panels
DC Power
Harness P/N
640B0049H01
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 13
GCU (GENERAL CONTROL UNIT) BOARDS
The information that follows in this section can help locate
problems that can occur with GCU Input and Output circuit
boards, and their interaction with the Quantum™
controller.
GCU Board Description
The GCU Board is actually a small microprocessor board
and programmed to control discrete outputs, or accepting
discrete inputs, from external electrical devices. Each
Board has the capability of 16 output channels and 8 Input
channels. Additionally, there is the capability for 11 Analog
input channels and 4 Analog output channels. With the
Quantum™ ACUair® Control, these I/O channels are
dedicated as to their function, through the operating
system (software), enabled options and external wiring.
Each channel that is used by the software will have a
module plugged into it. A yellow module indicates that it is
used for Inputs. A black module is used for Outputs. The
standard Quantum™ ACUair® package can have from one
to four GCU Boards in the control network.
Communications LED's
The Quantum™ controller is in constant communication
with all GCU Boards. You will notice on each GCU board,
that there are a pair of LED's that are labeled as RX1 and
TX1. These letters represent Receive (RX) and Transmit
(TX). These LED's should be flashing at a fairly high rate
during normal operation. This indicates that the
Quantum™, and the GCU Board that you are looking at,
are properly communicating with each other.
• Reference the “JUMPER AND DIPSWITCH
SETTINGS" section later in this manual. This
section contains the dipswitch settings for
addressing the GCU Boards numbers (1) through
(4). When these switches are properly set, the
Quantum™ is able to serially communicate with
each GCU board and provide data exchange. If
these switches are not properly set, the result will
be lost or failed communications.
Connections to the Quantum™
As stated earlier, the Quantum™ standard ACUair®
control system utilizes up to four GCU Boards (in separate
enclosures). To connect all of these boards together so
that the Quantum™ can interface with them, they must be
interconnected with a two-wire cable that provides the
communications capabilities. These two signals are the
RX (receive) and TX (transmit). These signals are the
means by which the Quantum™ communicates to the
GCU.
Logic Voltage (Power) LEDs
Located on the GCU Board is a +5 and a +12 “Power”
LED. These LEDs should be illuminated as long as the
“Control Power” switch is ON, and the proper voltages are
present at the GCU power connector (J1). The power
supply generates the +5 and +12 Vdc voltages, and
passes it on through a Power harness. If a voltage related
problem is suspected, the only way to actually determine
this is to read the voltages on a Digital Voltage Meter
(DVM). This may be accomplished by locating the
connector labeled as J1 on the GCU.
To check the +5 Vdc:
Take the red (positive) probe of the DVM and
carefully insert the end into the "+5V" lead, and the
black (negative) probe end into the "GND" (Return or
Common) lead, as shown below:
Set the DVM to read "DC", and set the proper range.
The voltage reading should read approximately +5.00
Vdc. If the reading is below +4.90 Vdc, the low
voltage problem will need to be corrected for proper
operation of the system.
To check the +12 Vdc:
Take the red (positive) probe of the DVM and
carefully insert the end into the "+12V" lead, and the
black (negative) probe end into the "GND" (Return or
Common) lead, as shown below:
Set the DVM to read "DC", and set the proper range.
The voltage reading should read approximately
+12.00 Vdc. If the reading is below +11.70 Vdc, the
low voltage problem will need to be corrected for
proper operation of the system.
The cause for a low voltage reading could be:
• Poor Connections. Check the power wiring for
proper connectivity (loose screw connection,
loose connector, broken wire, etc.).
• A problem may exist with the power supply.
• A problem may exist with GCU board.
Status LED
The GCU Board has a “Status” LED indicator on the board
that blinks when the board’s software is running.
If the “Status” LED is not blinking, check to ensure that the
EPROM is installed properly. The EPROM is located in
chip slot U22.
Digital Inputs
A Digital input is the portion of the hardware that allows
devices such as limit switches, relay contacts, and level
switches, to interface with the GCU. The software program
within the GCU is constantly “looking” at these Input
channels, and based upon whether a control voltage is
present or not, will provide the necessary control for an
associated Output channel.
+5
GND
+12
GND
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 14 MAINTENANCE
Input modules are yellow in color. A side profile of this
module is shown below:
Digital Outputs
A Digital Output is the portion of the hardware that the
GCU is to control (energize). These devices include
solenoids, relay coils, fans, blower contactors and heaters
to be energized, based upon the logic within the GCU
software program.
Output modules are black in color. A side profile of this
module is shown below:
Although this Output module is labeled as 280 VAC on the
top, and on the side, it can be used on 120 applications.
Never plug an Input module into a position designated for
an Output module.
You will notice that when a module is plugged into the
GCU Board, there is a fuse located directly adjacent to the
module. This fuse is of the plugable variety, and may be
remove for testing.
Checking the Digital Inputs and Outputs
Some problems that may be encountered involve
troubleshooting the digital inputs and outputs. The Digital
GCU has three Digital I/O (DIO) board connectors labeled
J7, J9 and J10. All digital I/O are wired to these
connectors.
J10 (Input) - Positions 1, 3, 5, 7, 9, 11, 13, and 15 are
Neutral connections. Positions 2, 4, 6, 8, 10, 12, 14,
and 16 are 120 Vac signal inputs:
J9 (Output) - Positions 1, 3, 5, 7, 9, 11, 13, and 15
are 120 Vac Hot connections. Positions 2, 4, 6, 8, 10,
12, 14, and 16 are 120 Vac signal inputs:
J7 (Output) - Positions 1, 3, 5, 7, 9, 11, 13, and 15
are 120 Vac Hot connections. Positions 2, 4, 6, 8, 10,
12, 14, and 16 are 120 Vac signal inputs:
An LED is associated with each module and displays the
state of each module. A lighted LED represents an Input
that is “High”, receiving a signal or an Output that is “On”.
If a properly configured GCU board is not responding
correctly, first look at the GCU board on the “Service
Screen”. It is possible that one or more modules (input or
output) has a problem:
For an Output - If the screen says that an output is
on, there should be 120 volts at the terminal strip for
the corresponding output (refer to the wiring
diagrams). If it is not on, check the LED on the GCU
Board for the suspect output module. It should be lit. If
the LED is not lit, then check the fuse for the output
(inputs do not have fuses). If the output fuse is OK,
then check the module.
For an Input - If you know for a fact that a particular
input should be energized, but the screen shows it as
being off, then verify at the field wiring terminal strip
the presence of 120 volts (refer to the wiring
diagrams). If voltage is present at the terminal strip,
then measure voltage at the GCU board input
terminal strip (J10). Refer to the diagram on this page
that shows the J10 terminal strip to identify which
position is used for each input. If there is voltage to
the GCU terminal (J10), then replace the
corresponding input module.
Fuse Testing and Replacement
1. Power off the panel.
2. Open the panel door.
3. Remove the questionable fuse.
4. Check the fuse using a DVM.
5. If the fuse is faulty, check for external shorts on
the corresponding circuit, then replace the fuse
with a new plug-type fuse (refer to
Recommended Spare Parts list).
5
-
4
+
3
+
COM OUT VDC
5VDC LOGIC
2
∼
1
90-140VAC
AC INPUT
120 VAC Input
4
-
3
+
3-8 VDC
DC CONTROL
2
∼
1
3A 280VAC
AC OUTPUT
120 VAC Output
116
N
Input
1
Input
2
Input
3
Input
4
Input
5
Input
6
Input
7
Input
8
116
H
Output
1
Output
2
Output
3
Output
4
Output
5
Output
6
Output
7
Output
8
116
H
Output
9
Output
10
Output
11
Output
12
Output
13
Output
14
Ouput
15
Output
16
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 15
Input and Output Module Testing and
Replacement
1. Power off the panel.
2. Open the panel door.
3. Replace the questionable module.
4. Power on the panel.
5. If it is an Input module, check if the associated
LED is on when power is applied to the module.
Troubleshooting an Output
1. Make sure the LED associated with the Output is
on when power is applied to the module.
2. If the LED is not on when it should be and there
is no operating condition preventing it, contact
the Frick® Service Department.
3. If the LED is on when it should be, check for
proper panel voltage on the DIO connector plug.
Check the voltage between neutral, and the
associated signal position of the Output module.
4. If the voltage is OK, check for proper panel
voltage between the associated signal position of
the Output module on the DIO connector and the
associated position on the terminal strip.
5. If the voltage is OK, check the wiring external to
the panel.
6. If voltage is not OK, check the fuse.
7. If the fuse is OK, then check the module.
8. If the module is OK, check for proper panel
voltage on the DIO connector plug between the
output signal position, and neutral.
Troubleshooting an Input
1. Make sure the LED associated with the Input is
on when power is applied to the module.
2. If the LED is on then the Input module is good.
3. If the LED is on and there is no input voltage,
replace the Input module.
Replacing a Defective GCU Board
The procedure to replace a GCU board is outlined below:
1. Shut off control power.
2. Remove the old board from the machine and the
new board from its packing and place both on an
anti-static surface.
3. Remove any required chip(s) from the defective
board and install them in the replacement board.
Align the notch at the end of the EPROM with the
notch in the socket.
• Ensure that the GCU EPROM (installed into
U22) has the proper label affixed to it. The
Version number should match between all
GCU EPROMS, as well as the program
version of the Quantum (as shown on the
“About…”screen). As an example, if the
Quantum version is 2.1, then all GCU boards
must have version 2.1. The GCU boards
may have an additional digit in the version
number, such as 2.11. This final digit is not
critical with the compatibility of the system.
4. Ensure that all jumpers, dip switches, I/O
modules and components are properly setup on
the new board as it was on the old board.
5. Install the modified replacement board in the
panel.
After replacing a GCU board, it will automatically be
detected after the Quantum power has been cycled off
then on. It will then be necessary to re-enter all setpoints
and calibration data to the board. Refer to the Factory
Setup Instructions for more information (S90-500 FSI).
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 16 MAINTENANCE
ACUair® GCU CONTROL PANEL FLOW DIAGRAM
- D.C. VOLTAGE / COMMUNICATIONS WIRING -
GCU
Board
Analog Board
(optional)
+5, +12, -12
Vdc Power
Supply
+24 Vdc
Power
Supply
+24 Vdc
Analog Output
Power
Communications
wiring to
Quantum™
Panel
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 17
PICTORIAL DRAWING OF ACUair® (GCU) BOARD:
GCU BOARD SETTINGS
Communications Port Connections
Comm. Port 1 Comm. Port 2
Connector
Function
Connector
Function
J2-P2
Com -
J3-P2
Com -
J2-P3 Com + J3-P3 Com +
Additional Communications Jumper Configurations
Jumper Setting Function
JP1 Installed
Removed*
Port 1 RS-485 pull-up resistor
No pull-up resistor (standard setting)
JP2 Installed
Removed*
Port 1 RS-485 pull-down resistor
No pull-down resistor (standard setting)
JP3 Installed
Removed*
Port 2 RS-485 pull-up resistor
No pull-up resistor (standard setting)
JP4 Installed
Removed*
Port 2 RS-485 pull-down resistor
No pull-down resistor (standard setting)
JP5 Installed*
Removed
PFI pull-up resistor (standard setting)
No pull-up resistor
* = standard setting
GCU Board Dipswitch Settings
SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8
Panel ID 1 On Off Off Off Off Off Off On
Panel ID 2 Off On Off Off Off Off Off On
Panel ID 3 On On Off Off Off Off Off On
Panel ID 4 Off Off On Off Off Off Off On
GCU Board Analog I/O Jumper Settings
J3
Comm.
Port 2
J2
Comm.
Port 1
EPROM
Comm. Driver for
Port 1
Comm. Driver for
Port 2
DIPswitch for ID #
& Baud
J1
Power
J8
Analog Outputs (1 - 4)
J11
Analog Inputs (9-11)
J5
Analog Inputs (5 - 8)
J4
Analog Inputs (1 - 4)
Output Fuses
J7
Digital Outputs (7 - 16)
J9
Digital Outputs (1 - 8)
J10
Digital Inputs (1 - 8)
Analog Input
Jumpers
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 18 MAINTENANCE
Analog Input 1 - Outside Air Temperature Analog Input 1 Sensor Wiring
Input Function
JP8
JP9
Connector
Function
0 – 5 VDC
Out
Out
J4-10
+12 VDC
Resistance 1 - 2 Out J4-11 Input Signal
4 – 20 ma Out 1 – 2 J4-12 GND
ICTD *
2 - 3 *
Out *
Analog Input 2 - Discharge Air Temperature Analog Input 2 Sensor Wiring
Input Function
JP18
JP19
Connector
Function
0 – 5 VDC
Removed
Removed
J4-7
+12 VDC
Resistance 1 - 2 Removed J4-8 Input Signal
4 – 20 ma Removed 1 – 2 J4-9 GND
ICTD *
2 - 3 *
Removed *
Analog Input 3 - Room/Return Air Temperature Analog Input 3 Sensor Wiring
Input Function
JP10
JP11
Connector
Function
0 – 5 VDC
Removed
Removed
J4-4
+12 VDC
Resistance 1 - 2 Removed J4-5 Input Signal
4 – 20 ma Removed 1 – 2 J4-6 GND
ICTD *
2 - 3 *
Removed *
Analog Input 4 - Spare Temperature Analog Input 4 Sensor Wiring
Input Function
JP20
JP21
Connector
Function
0 – 5 VDC
Removed
Removed
J4-1
+12 VDC
Resistance 1 - 2 Removed J4-2 Input Signal
4 – 20 ma Removed 1 – 2 J4-3 GND
ICTD * 2 - 3 * Removed *
Analog Input 5 - Damper Position Analog Input 5 Sensor Wiring
Input Function
JP12
JP13
Connector
Function
0 – 5 VDC
Removed
Removed
J5-10
+12 VDC
Resistance 1 - 2 Removed J5-11 Input Signal
4 – 20 ma Removed 1 – 2 J5-12 GND
ICTD * 2 - 3 * Removed *
Analog Input 6 - Exhaust Fan 1 Position Analog Input 6 Sensor Wiring
Input Function
JP22
JP23
Connector
Function
0 – 5 VDC
Removed
Removed
J5-7
+12 VDC
Resistance 1 - 2 Removed J5-8 Input Signal
4 – 20 ma Removed 1 – 2 J5-9 GND
ICTD * 2 - 3 * Removed *
Analog Input 7 - Exhaust Fan 2 Position Analog Input 7 Sensor Wiring
Input Function
JP14
JP15
Connector
Function
0 – 5 VDC
Removed
Removed
J5-4
+12 VDC
Resistance 1 - 2 Removed J5-5 Input Signal
4 – 20 ma Removed 1 – 2 J5-6 GND
ICTD * 2 - 3 * Removed *
Analog Input 8 - Ammonia Detector Analog Input 8 Sensor Wiring
Input Function
JP24
JP25
Connector
Function
0 – 5 VDC
Removed
Removed
J5-1
+12 VDC
Resistance 1 - 2 Removed J5-2 Input Signal
4 – 20 ma * Removed * 1 – 2 * J5-3 GND
ICTD 2 - 3 Removed
Analog Input 9 - Room/Return Relative Humidity Analog Input 9 Sensor Wiring
Input Function
JP16
JP17
Connector
Function
0 – 5 VDC
Removed
Removed
J11-7
+12 VDC
Resistance 1 - 2 Removed J11-8 Input Signal
4 – 20 ma * Removed * 1 – 2 * J11-9 GND
ICTD 2 - 3 Removed
* = standard setting
FRICK
QUANTUM™ ACUair
CONTROL PANEL S90-500 M
MAINTENANCE Page 19
GCU Board Analog I/O Jumper Settings (Continued)
Analog Input 10 - Room/Return Pressure Analog Input 10 Sensor Wiring
Input Function
JP26
JP27
Connector
Function
0 – 5 VDC
Removed
Removed
J11-4
+12 VDC
Resistance 1 - 2 Removed J11-5 Input Signal
4 – 20 ma * Removed * 1 – 2 * J11-6 GND
ICTD 2 - 3 Removed
Analog Input 11 - Cool Air Temperature Analog Input 11 Sensor Wiring
Input Function
JP6
JP7
Connector
Function
0 – 5 VDC
Removed
Removed
J11-1
+12 VDC
Resistance 1 - 2 Removed J11-2 Input Signal
4 – 20 ma Removed 1 – 2 J11-3 GND
ICTD * 2 - 3 * Removed *
* = standard setting
Analog Output Configurations
Analog Output 1 Sensor Wiring -
Outside/Return Air Dampers
Analog Output 2 Sensor Wiring -
Exhaust Command
Connector
Function
Connector
Function
J8-8
Output Signal
J8-6
Output Signal
J8-7 GND J8-5 GND
Analog Output 3 Sensor Wiring -
Burner Output
Analog Output 4 Sensor Wiring -
Heat Profile
Connector
Function
Connector
Function
J8-4
Output Signal
J8-2
Output Signal
J8-3 GND J8-1 GND
“Service Screen” - GCU Board Digital and Analog Inputs and Outputs
The “Service Screen” has been provided to view the raw
data from the GCU Board. There is a separate screen for
each of the up to four possible GCU Boards that are
present. Digital values are shown as ON or OFF. Analog
values are shown as a voltage (0.0 Vdc = 0% and 5.0 Vdc
= 100%).
NOTE: Analog Outputs 5 through 8 would apply to the
optional Analog board.
To access the “Service Screens” from the “Air Handling
Unit Overview” screen, login to unit, press the [MENU]
key, then the [SERVICE SCREEN] key, and finally the
[ACUair® Board] key.
S90-500 M FRICK
QUANTUM™ ACUair
CONTROL PANEL
Page 20 MAINTENANCE
ANALOG BOARD
The optional Analog board would be installed in a GCU
control enclosure only when the installed options call for it.
The information that follows in this section can help locate
problems that can occur with Analog Input and Output
circuit board, and their interaction with the GCU Board.
Analog Board Description
The Analog Board is actually a small microprocessor
board and is programmed to control analog outputs, or
accepting inputs, from external electrical devices. Each
Analog Board has the capability of 16 independent
channels or I/O (Input/Output). With the GCU ACUair®
Control, these I/O channels are dedicated, through the
software and external wring, as to the function of each
channel. Each channel that is used by the software will
have to be configured for the type of device that is
connected to it (4-20 mA, 0-5 v, 1-5 v, or ICTD). The
standard GCU ACUair® control can have up to one Analog
board (depending on options).
• Reference the “JUMPER AND DIPSWITCH
SETTINGS” section later in this section. This
section contains the dipswitch settings for
addressing the Analog I/O Board. When these
switches are properly set, the GCU board is able
to serially communicate with the Analog I/O
board and provide control signals and data
exchange. If these switches are not properly set,
the result will be one of the following:
• The wrong analog input signals being
received
• The wrong analog output signals being sent
from the board.
Connections to the Quantum™
As stated earlier, the GCU ACUair® control system utilizes
one Analog Board. To connect this board so that the GCU
can provide control, it must be interconnected with a wiring
harness that provides all of the necessary D.C. voltage
requirements, as well as the communications capabilities.
A diagram of this wiring harness can be found later in this
manual (see the ACUair® GCU Control Panel Flow
Diagram - D.C. Voltage / Communications Wiring). This
harness has a 16-pin connector at one end, which plugs
into the Analog board. The other end has no connector,
and simply wires directly into the DC power terminals
mounted on the right hand side of the GCU enclosure, and
Comm Port 2 (J3) of the GCU board.
Analog Inputs
An Analog Input is the portion of the hardware that allows
devices such as temperature sensors and pressure
transducers, ammonia detectors, etc., to interface with the
GCU. The software program within the GCU is constantly
“looking” at these Input channels (through
communications) and based upon what the voltage or
current level of the channel is, will provide the necessary
control for an associated action.
Analog inputs arrive at the board on connectors P1
through P8. Each of these connectors can receive two
channels (for a total of sixteen).
Each of the sixteen analog input channels is board
configurable to select for the following input signals:
• 4-20 mA
• 0-5 volt
• 1-5 volt
• ICTD
Refer to the Analog Board drawing and Analog Board
Settings pages that appear later in this section for specific
information and locations of jumpers. Also, see the section
entitled “Checking the Analog Inputs and Outputs”.
Analog Outputs
An Analog Output is the portion of the hardware that the
GCU uses to provide control. With ACUair®, this output is
typically a 4-20 mA signal that is outputted to an external
device. The devices are:
• Pre-Heat
• Cooling
• Variable Speed Fan
• Humidity
Checking the Analog Inputs and Outputs
Some problems that are encountered involve
troubleshooting the Analog inputs and outputs. The
Analog I/O (Input / Output) Boards have eight Analog I/O
(DIO) board connectors labeled P1 through P8. The
external Analog devices are wired to a DIO connector
plug. Position 1 connects to the plus (+) of the external
device for channel 1, position 2 connects to the signal
(SIG) of the external device for channel 1 and position 3
connects to ground (GND) of the external device for
channel 1. Position 4 connects to the plus (+) of the
external device for channel 2, position 5 connects to the
signal (SIG) of the external device for channel 2 and
position 6 connects to ground (GND) of the external
device for channel 2, as shown below:
The Analog I/O Boards have numerous jumpers that must
be properly selected. There are sixteen analog input
channels that can be selected for 4-20 mA, 0-5 Vdc, or
ICTD. All of these jumper settings are listed later in this
section (Analog Board Settings section). Besides properly
setting the hardware jumpers, each channel is setup in
software for the proper transducer type and range, and
each transducer must be calibrated through the
appropriate sensor calibration screen. Improper setup of
either the hardware or software will result in improper
operation or range.
The most common fault associated with the reading of the
analog channels other than hardware or software setup
problems fall into one of the following categories:
• Sensor fault
• Wiring problem
GND
Channel 2
+
Channel 1
+
Channel 1
Signal
Channel 2
Signal GND
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Frick Quantum AcuAir Control Panel User guide
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- User guide
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