FläktGroup DC_10244GB 20181126_R0 We reserve the right to make changes without prior notice
EQRO, CONTROL UNIT FOR ROTATING
HEAT EXCHANGER
INSTALLATION AND MAINTENANCE INSTRUCTION
CONTENT
Installation instructions ............................................................................................... 2
Safety instructions ........................................................................................................ 2
Mounting .......................................................................................................................... 2
Description of functions .............................................................................................. 2
Technical data drive .....................................................................................................3
Technical data motor ...................................................................................................3
Functions .......................................................................................................................... 3
DIP switches .....................................................................................................................4
Operational indications .................................................................................................4
Alarms .................................................................................................................................4
Adjustments via potentiometer ................................................................................4
Push button .......................................................................................................................4
Connection diagram ..................................................................................................... 5
Connections ..................................................................................................................... 5
Input signal/Rotation speed ..................................................................................... 5
Varification before switching on the control unit .............................................5
Commissioning ............................................................................................................... 5
EMC installation ..............................................................................................................6
2
Installation and maintenance Instruction
FläktGroup DC_10244GB 20181126_R0 We reserve the right to make changes without prior notice
SAFETY INSTRUCTIONS
The following symbols and references will be used in this description
These important instructions apply to personal protection and technical
safety during operation.
TECHNICAL DATA DRIVE
DESCRIPTION OF FUNCTIONS
Mains 1x230 VAC +/- 15%, 50/60 Hz
Input power 110 W 240 W 500 W
Input current 0.9 A 1.9 A 2.2 A
External fuse 10 A
Output voltage 3 x 280 V
Motor current 0.7 A 2.0 A 3.2 A
Internal fuse 2.5 A (T)
Output frequency 0-290 Hz 0-312 Hz 0-333 Hz
Acceleration and
retardation
30 s
Ambient temperature
(non condensing)
- 30 °C - +45 °C
Protection IP 54
Weight 1.1 kg 1.2 kg 2.6 kg
Dimensions (HxWxD)
173x187x70 mm 203x187x70 mm 142x150x180
Compliances EMC Directive 2004/108/EC
Low Voltage Directive 2006/95/EC
RoHS Directive 2011/65/EU
Standards:
EN 61800-3:2004, C1 (emission) C2 (immunity)
EN 61800-5-1.
- There are three different sizes of motors and drives. All control units
run a 3-phase stepper motor. All control units have an input signal of
0-10 V.
- The drives have a built-in linerarization of the input signal, which
means that the rotor’s efficiency is proportional to the input signal.
- The drives have a preset threshold value of 0,1 V (hysteresis 0,13–0,07 V).
If the input signal falls below this value, the rotor stops.
- The drives have a rotation monitor (magnet mounted on the rotor with
associated magnetic sensor) and built-in cleaning function.
The functions can be disabled via DIP switches.
- The drives restart automatically after a voltage dip and
resets all alarms on restart.
- The motors are stepper motors and have the same torque over the
entire speed range.
- To avoid windmilling a holding torque is applied when motor is
stationary.
- The motor is equipped with a 2 m cable as standard.
- If total cable length exceeds 3 m, external EMC filters should be used.
”Safety instruction”
”Safety instruction” represents instructions that are
intended to avoid the risk of personal injury and to
prevent damage to equipment.
Danger!
Electrical current to electrical components! Note!
Switch off the main current before removing the cover.
Never touch electrical components or contacts while
main current is switched on. Risk of electric shock, resulting in
serious injury or death.
Connected terminals contain residual voltage even after the main
current has been switched off.
MOUNTING
Mounting hole
5 ø
Mounting hole
5 ø
Disposal and recycling
When replacing components or when the control unit
in its entirety need replacing, please follow the advice
below: The aim should always be maximum possible
recycling of raw materials, with minimum possible
environmental impact.
Never dispose of electrical components with ordinary waste,
always use the designated collection points.
Disposal should be as environment-friendly as the technology
allows in terms of environmental protection and recycling.
INSTALLATION INSTRUCTIONS
Warning indication
Any damage that may affect safety must be dealt
with immediately.
Maintenance/Repairs
The function of the control unit should be checked regularly.
Troubleshooting and repairs must only be performed by trained
personnel. Prescribed electrical protection must be implemented.
3
Installation and maintenance Instruction
FläktGroup DC_10244GB 20181126_R0 We reserve the right to make changes without prior notice
FUNCTIONS
TECHNICAL DATA MOTOR
DIP switches ON to left
Operational indications
Alarm indications
Adjustments
Push button for Reset
(Max 2A/250V AC)
L
T
4 5 1 2
M
3
T U V W
1x230 V Alarm relay 0-10V
Man.
speed Rotation
monitor
Rotations
vakt Åter-
ställning
Reset
On
Till/On Från/Off
Cleaning function
Rotation monitor
High speed
Low speed
Renblåsning
Rotationsvakt
Högvarv
Lågvarv
1.
2.
3.
4.
5.
1 2 3 4
Run
Rotation
Rotation monitor
Overtemp motor
Overvoltage
Undervoltage
Over/undertemp controller
Short circuit
Internal fault
Manual speed
A1-A2
Max rpm
Manuell hastighet
A1-A2
Maxvarv
ÅterställningReset
Till
Drift
Rotation
Rotationvakt
Övertemp motor
Överspänning
Underspänning
Över/undertemp styrenhet
Kortslutning
Internfel
Manuell
hastighet
Thermal
contact
Termo-
kontakt
Alarmrelä
Stepper motor 3-phase
Stegmotor 3-fas
N 13 14 15 A1 A2 2
wbr
S
3 9 10 11 12
(Max 2A/250V AC)
L
T
4 5 1 2
M
3
T U V W
1x230 V Alarm relay 0-10V
Man.
speed Rotation
monitor
Rotations
vakt Åter-
ställning
Reset
On
Till/On Från/Off
Cleaning function
Rotation monitor
High speed
Low speed
Renblåsning
Rotationsvakt
Högvarv
Lågvarv
1.
2.
3.
4.
5.
1 2 3 4
Run
Rotation
Rotation monitor
Overtemp motor
Overvoltage
Undervoltage
Over/undertemp controller
Short circuit
Internal fault
Manual speed
A1-A2
Max rpm
Manuell hastighet
A1-A2
Maxvarv
ÅterställningReset
Till
Drift
Rotation
Rotationvakt
Övertemp motor
Överspänning
Underspänning
Över/undertemp styrenhet
Kortslutning
Internfel
Manuell
hastighet
Thermal
contact
Termo-
kontakt
Alarmrelä
Stepper motor 3-phase
Stegmotor 3-fas
N 13 14 15 A1 A2 2
wbr
S
3 9 10 11 12
(Max 2A/250V AC)
L
T
4 5 1 2
M
3
T U V W
1x230 V Alarm relay 0-10V
Man.
speed Rotation
monitor
Rotations
vakt Åter-
ställning
Reset
On
Till/On Från/Off
Cleaning function
Rotation monitor
High speed
Low speed
Renblåsning
Rotationsvakt
Högvarv
Lågvarv
1.
2.
3.
4.
5.
1 2 3 4
Run
Rotation
Rotation monitor
Overtemp motor
Overvoltage
Undervoltage
Over/undertemp controller
Short circuit
Internal fault
Manual speed
A1-A2
Max rpm
Manuell hastighet
A1-A2
Maxvarv
ÅterställningReset
Till
Drift
Rotation
Rotationvakt
Övertemp motor
Överspänning
Underspänning
Över/undertemp styrenhet
Kortslutning
Internfel
Manuell
hastighet
Thermal
contact
Termo-
kontakt
Alarmrelä
Stepper motor 3-phase
Stegmotor 3-fas
N 13 14 15 A1 A2 2
wbr
S
3 9 10 11 12
Max. torque 2 Nm 4 Nm 10 Nm
Min. rotation speed 1 rpm
Max. rotation speed 350 rpm 375 rpm 400 rpm
Max. motor temperature 110 °C
Shaft length 40 mm 40 mm 35 mm
Shaft diameter 14 mm 14 mm 19 mm
Protection IP 54
Weight 2.6 kg 4.0 kg 8.4 kg
Dimensions (HxWxD) 130x130x110 mm 130x130x171 mm 142x150x180
4
Installation and maintenance Instruction
FläktGroup DC_10244GB 20181126_R0 We reserve the right to make changes without prior notice
ADJUSTMENTS VIA POTENTIOMETER
PUSH BUTTON
Manual speed By closing A1-A2 the speed is controlled via the poten-
tiometer marked ”Manual speed”. It can be adjusted
between 1 and maximum design speed of motor (see
table ”Technical data motor”).
The motor rotates at the set speed, regardless of the
value of the input signal. Factory setting: 1 rpm on motor
shaft.
Max. speed Potentiometer for adjusting max. speed.
Adjustable between 50 and maximum design speed.
Factory setting: 50 rpm on motor shaft.
Reset Reset of drive. The drive is also reset in the event of
voltage drop-out and by jumpering terminal 11 and 12.
Rotation monitor Activated if a pulse is not received every 30
minutes at min. rotation speed and every 20
seconds at max. rotation speed. The time
between these speeds is linear. The function can
be disconnected via DIP switches.
Probable fault cause
on installation
- Magnet turned the wrong way
- Magnet transmitter connected incorrect
(wrong polarity), see CONNECTIONS on page 4
- Too big a gap between magnet transmitter
and magnet, max. 15 mm
Probable fault cause
in operation
- Broken belt
- Belt slipping
- Rotor is stuck or to heavy
- The magnet transmitter or magnet is broken
Motor temperature Activated if the coil temperature in the motor
is too high. The thermal contact in the motor
returns to normal when the temperature drops.
Over-voltage Activated if the input voltage exceeds 265 V.
Under-voltage Activated if the input voltage falls below 190 V.
Over/under
temperature
Activated if the temperature in the control unit
exceeds temperature span -30 °C - +85 °C
Short circuit Alarms and trips in the event of short circuit
phase-phase or phase-earth.
Probable fault cause - Short circuit between phases in cable or
motor
- Short circuit between phase-earth in cable or
motor
- Cable break to one phase
Measure motor resistance; it should be identical
on all coils.
Internal fault Activated if an internal fault in the control system
has occurred.
DIP SWITCHES
OPERATIONAL INDICATIONS
*) Manual running (test mode)
Cleaning Purging function activated when in ON position.
Every ten minutes the motor rotates first 6 s at 5 rpm
and then another 10 to 20 s (randomized) at 20 rpm.
Rotation monitor Rotation monitor activated in ON position.
High speed *) The motor rotates at the set max. rpm when the
switch is set to ON.
Low speed *) The motor rotates at the preset min. speed (1 rpm)
when the switch is set to ON.
On/Alarm "Fixed green light when powered on. Flashes when the
control unit has tripped.
Run Lit when the motor is going to rotate, i.e. when the input
signal exceeds the threshold value.
Rotation Flashes when the magnet passes the magnetic sensor,
regardless of DIP-switch settings and input signal value.
ALARMS
In the event of an alarm the respective red alarm LED is turned on for 30
seconds. After the restart the LED is turned off.
This sequence is repeated twice if the fault remains. After a third time the
system enter error mode and the alarm relay is activated. All three alarm
events must be activated within 90 minutes to activate error mode.
The green LED is fixed during first and second alarm and flashes during
third. All alarms are latched subsequently.
5
Installation and maintenance Instruction
FläktGroup DC_10244GB 20181126_R0 We reserve the right to make changes without prior notice
CONNECTIONS
The voltage must be switched off before undertaking any work on the
equipment. Recommended tightening moment 0,5 Nm, max. tightening
moment 0,8 Nm.
Should be done in sequence
The input signal is directly proportional to the efficiency of the rotor,
which means that input signal and rotation speed are as per adjoining
diagram.
Rotation speed [%] Input signal - rotation speed
Input signal 0-10 V
VERIFICATIONS BEFORE SWITCHING ON THE CONTROL UNIT
COMMISSIONING
CONNECTION DIAGRAM
INPUT SIGNALS/ROTATION SPEED
Verify that
the drive is connected according to instructions on page 9.
Input voltage 230 VAC +/-15%, 50/60 Hz.
Verify that the input signal is 0-10 V.
Verify that rotation monitor and cleaning function are connected.
Verify that the motor rotates in the desired direction. If erro-
neous direction, switch two motor phases.
Adjustment of
max. speed
Set DIP switch ”High Speed” to ON. Adjust "Max.
speed" until the rotor rotates at desired speed.
Verifying minimum
speed
Set DIP switch ”Low Speed” to ON. Ensure that
the rotor starts to rotate. The minimum speed is
preset.
Verifying the
purging function
Turn of main power. Ensure that the "Cleaning" DIP
switch is set to ON, and that the input signal is
disconnected. After turning on the power the rotor
rotates for 20 seconds at 12 rpm.
Controlling the
rotation monitor
The yellow "Rotation" light diode should flash when
the magnet passes the magnetic sensor, regard-
less the DIP switch position.
Finalize the test by rotating the rotor at maximum and minimum rota-
tion speed and verifying that the rotor speed is
correct.
Input voltage
(L-N-PE)
1x230 VAC +/-15 %, 50/60 Hz.
NOTE! Protective earth must always be connected.
Alarm relay
(13-14-15)
Closes between 14-15 in the event of an alarm or if
unpowered. Closes during 13-15 during normal
operation. Max. 2 A resistive load/250 V AC.
Manual speed
(A1-A2)
Jumpering terminals forces motor to rotate
according to speed set by the manual speed dial.
Input signal
(2-3)
0-10 V.
Plus connected to terminal 2, minus to terminal 3.
Rotation monitor
(9-10)
White cable connected to terminal 9, brown to
terminal 10 for supplied transmitter.
The magnet is installed with south side (S) towards
the transmitter.
Max. distance 15 mm.
12 V output
(3-11)
Output for 12 V DC. Terminal 3 is minus, terminal 11
is plus.
Reset
(11-12)
Remote reset in the event of alarm.
The drive is reset automatically in the event of
voltage dip.
Thermal contact
(T-T)
Protect motor from overheating.
Must be connected.
Motor
(U-V-W)
Motor connection. Only supplied motor can be used.
Direction of rotation is changed by switching two of
the phases.
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
100
80
60
40
20
0
0 1 2 3 4 5 6 7 8 9 10
(Max 2 A / 250 V AC)
L N 14 15
M
13
2 3
+
9 10
w
A1 A2
S
br
11 12
TT UV
W
1 x 230 VAC
Alarm relay
Man.
speed
Input
signal
0 - 10 V
Reset
Rotation
monitor
Thermal
contact
Stepper motor 3-phase
3
5 2
4 1
(Max 2 A / 250 V AC)
L N 14 15
M
13
2 3
+
9 10
w
A1 A2
S
br
11 12
TT UV
W
1 x 230 VAC
Alarm relay
Man.
speed
Input
signal
0 - 10 V
Reset
Rotation
monitor
Thermal
contact
Stepper motor 3-phase
3
5 2
4 1
6
Installation and maintenance Instruction
FläktGroup DC_10244GB 20181126_R0 We reserve the right to make changes without prior notice
EMC INSTALLATION
Incoming mains
Not shielded
Motor cable 7G0.5
Shielded
Input signal
Shielded
Magnet transmitter,
LiYCY 2x0.34
Shielded
EMC glands must be used for shielded cables.
The above cables, or equivalent, must be used to comply with the terms
of the EMC Directive.
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