Page is loading ...
CN142
Controller
e-mail: [email protected]
For latest product manuals:
www.omegamanual.info
Shop online at
omega.com
®
User’s Guide
MADE IN ITALY
Servicing North America:
U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047
Stamford, CT 06907-0047 USA
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660 Fax: (203) 359-7700
e-mail: [email protected]
For Other Locations Visit
omega.com/worldwide
omega.com [email protected]
The information contained in this document is believed to be correct, but OMEGA
accepts no liability for any errors it contains, and reserves the right to alter specifications
without notice.
WARNING: These products are not designed for use in, and should not be used for, human
applications.
User manual - ATR 142 3
Summary
1 Model Identication ........................................................................ 7
2 Technical Data ..................................................................................7
2.1 General Features .....................................................................7
2.2 Hardware Features .................................................................8
2.3 Software Features ..................................................................9
3 Dimensions and Installation ......................................................... 9
4 Electrical wirings ..........................................................................10
4.1 Wiring diagram .....................................................................10
5 Conguration EASYUP ..................................................................14
6 Display and Keys Functions .........................................................15
6.1 Numeric Indicators (Display) ............................................. 15
6.2 Meaning of Status Lights (Led) .........................................15
6.3 Keys ....................................................................................... 16
7 Controller Functions ......................................................................16
7.1 Modifying Main Setpoint and Alarm Setpoint Values . 16
7.2 Auto-Tune ............................................................................... 17
7.3 Manual Tuning ......................................................................17
7.4 Automatic Tuning ...............................................................17
7.5 Soft Start .................................................................................18
7.6 Automatic/Manual Regulation for % Output Control 18
7.7 Pre-Programmed Cycle .......................................................19
7.8 Memory Card (optional) .....................................................20
7.9 Loading default values........................................................21
7.10 LATCH ON Functions ............................................................21
7.11 Digital Input Functions .......................................................23
7.12 Dual Action Heating-Cooling ............................................ 24
8 Timer operation ..............................................................................27
8.1 Single Timer ...........................................................................27
4 ATR 142 - User manual
8.2 Dual Timer..............................................................................28
8.3 Dual Sequential Timer ........................................................28
8.4 Dual Timer Loop ..................................................................29
8.5 Relating Timers to Alarms .................................................30
9 Serial Communication ..................................................................31
9.1 Slave ....................................................................................... 31
9.2 Master .....................................................................................37
9.2.1 Master Mode in retransmission ........................................37
9.2.2 Master Mode Remote process ...........................................39
10 Conguration .................................................................................39
10.1 Modify Conguration Parameter .....................................39
11 Table of Conguration Parameters ...........................................40
12 Alarm Intervention Modes ........................................................... 55
13 Table of Anomaly Signals.............................................................60
14 Summary of Conguration parameters ...................................61
User manual - ATR 142 7
Introduction
Thank you for choosing a Omega controller.
With the CN142 model Omega makes available in a single
device multiple options related to sensor input and actuators
command in addition to the extended power range 24…230
as relay or SSR command, the user or retailer can reduce
stock by rationalising investment and device availability. The
series includes a version equipped with serial communication
Memory cards which are provided with internal battery and
therefore do not require cabling to power the controller.
Refer to the table below to easily select preferred model.
Technical Data
General Features
Display
Operating
temperature
Sealing
Material
Weight
8 ATR 142 - User manual
Hardware Features
Analogue
input
via software.
Thermocouple type:
K, S, R, J. Automatic
compensation of cold
Thermoresistance:
Linear
Potentiometers:
scale) for thermocouple
input, thermo- resistan-
ce and V/mA.
Cold junction accuracy
Impedance:
Relay
output
command and/or alarm
output
Contacts:
for resistive loads
for resistive loads
SSR
output
command output and/
or alarm output.
Supply
Power supply
Power consumption
NTC2252 ohm
(CN142-ABC)
(CN142-ABC-T)
User manual - ATR 142 9
Software Features
Regulation
algorithms
ON-OFF with hysteresis.
P, PI, PID, PD with proportional time
Proportional band
Integral time
Derivative time
Controller
functions
alarms, protection of command and alarm
setpoints, activation of functions via
digital input, preset cycle with Start/Stop.
Dimensions and Installation
1U
1C
CN1
1 6
123
Dima di foratura
28.5 x 70.5 mm
Frontal panel cut-out
Spessore suggerito
2 ÷ 8 mm
Suggested thickness
77 mm
mm 53
53 mm
7
42mm
inserimento
Memory Card
42mm
insert
Memory Card
CN1
1 6
Memory Card (optional)
with battery
Memory Card (optional)
Cod. MEMORY 2100.30.005
Cod. MEMORY 2100.30.003
Guarnizione per 32x74
Cod. 1600.00.082 (optional)
Gasket for 32x74
10 ATR 142 - User manual
Electrical wirings
Although this controller was designed to resist
electromagnetic interferences in industrial envi-
ronments, please observe following safety gui-
delines:
• Separate the control line from the power wires.
• Avoid proximity of remote control switches, electroma-
gnetic contactors, powerful engines and in all instances
• Avoid proximity of power groups, especially those with
phase control
Wiring diagram
10A 230V
Cosf 1
3A 230V
Cosf 0.8
Q1
PTC/NTC
-
+
Tc
+VDC
SSR
1 2 3 4
5
6 7 8 9
10 11 12
-
+
I
V/I
+
-
PT/NI100/1K
2 wire 4/20mA
Power
5A 230V
Cosf 1
1A 230V
Cosf 0.8
Q2
Memory
1
CNxxx-xx
-
+
SUPPLY
10A 23a0V
Cosf 1
3A 230V
Cosf 0.8
Q1
PTC/NTC
-
+
Tc
+VDC
SSR
1 2 3 4
5
6 7 8 9
10 11 12
-
+
I
V/I
+
-
PT/NI100/1K
2 wire 4/20mA
Power
Memory
1
-
+
CNxxx-xxT
-
+
RS485
SUPPLY
CN142-ABC CN-ABC-T
Power Supply
1
2
24...230V
AC/DC
Switching power supply with extended
range
User manual - ATR 142 11
AN1 Analogue Input
-
+
Tc
11 12
Shield/Schermo
For thermocouples K, S, R, J.
• Complywithpolarity
• Forpossibleextensions,use
compensated cable and terminals
suitable for the thermocouples
used(compensated)
• Whenshieldedcableisused,itshould
be grounded at one side only
10 11 12
PT/NI100
Shield/Schermo
A
B
C
For thermoresistances PT100, NI100
• Forthethree-wireconnectionuse
wires with the same section
• Forthetwo-wireconnectionshort-
circuit terminals 10 and 12
• Whenshieldedcableisused,itshould
be grounded at one side only
10
11
12
RED
WHITE
RED
Shield/Schermo
PTC/NTC
10 11
For thermoresistances NTC, PTC,
PT500, PT1000 e potentiometers
• Whenshieldedcableisused,itshould
be grounded at one side only to avoid
ground loop currents
Shield/Schermo
+VDC
9
10 11 12
V/I
+-
For linear signals V/mA
• Complywithpolarity
• Whenshieldedcableisused,itshould
be grounded at one side only
12 ATR 142 - User manual
Examples of Connection for linear input
0...10V
1112
For signals 0….10V
• Complywithpolarity
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
0/4...20mA
A
B
C
1112 9
For signals /….mA with three-wire
sensor
• Complywithpolarity
C = Sensor output
B = Sensor ground
A = Sensor power supply (12V/30mA)
EXTERNAL SUPPLY
ALIMENTAZIONE ESTERNA
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
0/4...20mA
B
C
1112
For signals /..mA with external
power of sensor
• Complywithpolarity
C = Sensor output
B = Sensor ground
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
C
4...20mA
A
12 9
For signals /...mA with two-wire
sensor
• Complywithpolarity
C = Sensor output
A = Sensor power supply (12V/30mA)
Serial input
1176
-
+
Shield/Schermo
RS485
RS485 Modbus RTU communication
Do not use LT (line termination)
resistors
• Fornetworkswithmorethanve
instruments supply in low voltage
User manual - ATR 142 13
Relay Q1 Output
7 6 5 4
Q1
Q2
3
Capacity:
Q1: 8A, 250Vac,resistive loads,10
opera-
tions. 30/3A, 250Vac, cosφ=0.3, 10
operations.
Q2: 5A, 250Vac, resistive loads, 105
operations.
20/2A, 250Vac, cosφ=0.3, 10
ope-
rations.
SSR output
SSR
8 9
SSR command output 12V/30mA
Digital Input
10 11
Digital input according to parameter
DGT.i .
The use of digital input in this version is
possible only with TC sensors or …V,
/…mA and …mV signals
14 ATR 142 - User manual
To simplify the setting of parameters and the integration of
Omega introduces the EASY-UP coding which allows to set
sensors and/or command outputs in a single step.
By means of the code listed in the data sheet enclosed to the
sensor or actuator (SSR, motorized valve etc..) the EASY-UP
coding will set the relevant main parameters on the control-
lers (ex. selection of PT100 on parameter “Sensor” and the
corresponding measuring range on parameters “Lower and
Upper limits of setpoint”)
-
signal.
User manual - ATR 142 15
6 Display and Keys Functions
5
4
3
8
7
6
2
1
M T R
2 3
9
10
12
11
ATR 142
1
6.1 Numeric Indicators (Display)
1234
Normally displays the process. During the
con guration phase, it displays the parameter
being inserted.
1234
Normally displays the setpoint. During the
con guration phase, it displays the parameter
value being inserted.
6.2 Meaning of Status Lights (Led)
1
ON when the output command is on. For
motorised valve command, led is ON when valve is
opening and blinks when closing.
2
ON when alarm is on.
3
ON when alarm is on.
M
ON when the “Manual” function is on.
T
ON when the controller is running an “Autotuning”
cycle.
R
ON when the controller communicates via serial
port.
16 ATR 142 - User manual
6.3 Keys
• Allowstodecreasemainsetpoint.
• Duringcongurationphase,allowstoslide
through parameters. Together with
SET
key it
modies them.
• Pressedafter
SET
key it allows to decrease
alarm setpoint.
• Allowstoincreasemainsetpoint.
• Duringcongurationphase,allowstoslide
through parameters. Together with
SET
key it
modies them.
• Pressedafter
SET
key it allows to increase alarm
setpoint.
SET
• Allowstodisplayalarmsetpointandrunsthe
autotuning function.
• Allowstomodifycongurationparameters.
FNC
• Allowstoruntheautotuningfunctionandto
select Manual/automatic operation.
•
Allows to enter/exit for congurator procedure.
7 Controller Functions
7.1 Modifying Main Setpoint and Alarm
Setpoint Values
Setpoint value can be changed by keyboard as follows:
Press Eect Do
or
Value on display
changes
Increase or decrease
main setpoint
SET
Visualize alarm
setpoint on display
or
Value on display
changes
Increase or decrease
the alarm set point
value
User manual - ATR 142 17
7.2 Auto-Tune
Tuning procedure calculates the controller parameters and
can be manual or automatic according to selection on para-
meter 46
tune
.
7.3 Manual Tuning
Manual procedure allows the user greater exibility to decide
when to update PID algorithm parameters. The procedure
can be activated in two ways.
• RunningTuningbykeyboard:
Press
FNC
key until display 1 shows the writing
tune
with
display 2 showing
o FF
, press , display 2 shows
on
. The
T
led switches on and the procedure begins.
• RunningTuningbydigitalinput:
Select
tune
on parameter 50
d G t.i .
At rst activation of digital input (commutation on front panel)
T
led switches ON and at second activation switches o.
7.4 Automatic Tuning
Automatic tuning activates whenever the controller is switched
on or when the setpoint is modied to a value over 35%.
To avoid an overshoot, the threshold where the controller
calculates new PID parameters is determined by the setpoint
value minus the “Set Deviation Tune” (Parameter 47
s.d.tu.
).
To exit Tuning and keep PID values unchanged, just press the
FNC
key until display 1 shows the writing
tune
with the display
showing
on
, press , display 2 shows
off
.
The
T
led switches o and the procedure nishes.
18 ATR 142 - User manual
7.5 Soft Start
To reach the setpoint the controller can follow a gradient
expressed in units (e.g. degree/hour).
Enter this gradient on parameter 51
Gra d.
with the chosen
units/hour; only on subsequent activation the controller
uses soft start function.
Automatic/manual tuning cannot be enabled if the Soft start
is active.
7.6 Automatic/Manual Regulation for %
Output Control
This function allows to select automatic functioning or ma-
nual command of the output percentage.
Parameter 49
Au.ma.
, can select two methods.
• Firstselection
en.
pressing the
FNC
key display 1 shows
p.---
, while display 2
shows
Auto
.
Press the
key to select
man.
mode; it is now possible, to
change the output percentage using the keys
and
. To return to automatic mode, using the same procedure,
select
auto
on display 2:
M
led switches o and functio-
ning returns to automatic mode.
• Secondselection
en .st.
same functioning, but with two important variants:
• Ifthereisatemporarypowerfailureorafterswitch-o,
manual functioning as well as the previous output
percentage value will be maintained at restarting.
• Ifthesensorbreaksduringautomaticfunctioning,con-
troller moves to manual mode while maintaining the
User manual - ATR 142 19
output percentage command unchanged as generated
by the PID immediately before breakage.
7.7 Pre-Programmed Cycle
Pre-programmed cycle function activates by setting
p r. cY.
on
parameter 48
o p.Mo.
Controller reaches setpoint1 basing on the gradient set on pa-
rameter 51
Gra d.
, then it reaches max. power up to setpoint2.
When the process reaches max. power, this setpoint is main-
tained for the time set on parameter 52
m a . t.i .
At expiry, process will reach ambient temperature according
to gradient entered on parameter 64
f a . G r.
, then command
output will be disabled and display will visualize
Sto p
.
Setpoint
Time
Setpoint 1
Setpoint 2
Maintenance time
Mantenimento
Cooling
RareddamentoMax Power
Max Potenza
Rising gradient
Gradiente di salita
Cycle starts at each activation of the controller, or via digital
input if it is enabled for this type of functioning (parameter
50
d G t.i .
).
20 ATR 142 - User manual
7.8 Memory Card (optional)
Parameters and setpoint values can be duplicated from one
controller to another using the Memory card.
There are two methods:
• Withthecontrollerconnectedtothepowersupply
Insert the memory card when the controller is o.
On activation display 1 shows
memo and display 2 show
---- (Only if the correct values are saved in the memory
card). By pressing the
key display 2 shows Lo a d, then
conrm using the
FNC
key. The controller loads the new data
and starts again.
• Withthecontrollernotconnectedto
power supply.
The memory card is equipped with
an internal battery with an autonomy
of about 1000 operations.
Insert the memory card and press the
programming button .
When writing the parameters, the led turns to red and on com-
pleting the procedure it turns to green. It is possible to repeat
the procedure without any particular attention.
WARNUNG
Updating Memory Card
To update the memory card values, follow the procedure
described for the rst method, setting display 2 to
---- so as
not to load the parameters on controller
.
Enter conguration level and change at least one parameter.
Exit conguration. Changes are saved automatically.
If on activation the controller does not display
memo
it means no data
have been saved on the memory card, but it is possible to update values.
User manual - ATR 142 21
7.9 Loading default values
This procedure allows to restore factory settings of the device
Press Eect Do
FNC
for sec.
Display shows 0000
with the st digit
ashing, while display
shows
pass
or
Change the ashing
digit and move to the
next one using the
SET
key.
Enter password
9999
SET
to conrm
Instrument loads
default settings
Turn o and restart
the instrument
7.10 LATCH ON Functions
For use with input
P o t .1
(potentiometer 6K) and
Po t.2
(potentiometer 150K) and with linear input (0…10V,
0...40mV, 0/4…20mA), it is possible to associate start value
of the scale (parameter 6
Lo .L.i .
) to the minimum position
of the sensor and value of the scale end (parameter 7
u p. L.i .
)
to the maximum position of the sensor (parameter 8
La tc.
congured as
std .
). It is also possible to x the point in which
the controller will display 0 (however keeping the scale range
between
Lo .L.i .
and
u p. L.i .
) using the “virtual zero” option by
setting
u.0st.
or
u.0in.
in parameter 8
La tc.
If you set
u.0in.
the virtual zero will reset after each activation of the device;
if you set
u.0st.
the virtual zero remains xed once tuned.
To use the LATCH ON function, congure according to requi-
red operation the parameter
La tc.
The tuning procedure starts by exiting the conguration after changing
the parameter.
22 ATR 142 - User manual
For the calibration procedure refer to the following table:
Press E e c t Do
FNC
Exit parameters
con guration. Display
shows the writing
La tc.
Place the sensor on the
minimum operating
position (associated with
Lo .L.i .
)
Set the value to
minimum.
The display shows
Lo w
Place the sensor on the
maximum operating
position
(associated with
u p. L.i .
)
Set the value to
maximum.
The display shows
Hi G t
To exit standard
procedure press
FNC
.
For “virtual zero”
settings place the sensor
on zero point.
SET
Set the virtual zero
value. The display shows
ui rt .
NB: for selection
of
u.0in.
the procedure
on point should
be followed at each
re-activation.
To exit the procedure
press
FNC
.
Max
Min Zero
/
