Regin PULSER-M Guide Rapide page 4

PULSER-M
Fig 6
TG-K3xx TBI-xx
G G
TG-G1xx
1
2
Fig 7
°C
K K
Fig 8 Fig 9
M M
M
Min/Max
Min/Max
TG-K3...
TG-K3...
EMC emissions & immunity standards:
This product conforms with the
requirements of European EMC
standards CENELEC EN 50081-1 and
EN 50082-1 and carries the CE mark.
LVD
This product conforms with the
requirements of European LVD
standards IEC 669-1 and IEC 669-2-1.
www.regin.se
Box 116 428 22 KÅLLERED SWEDEN
Tel +46 (0)31 720 02 00 Fax +46 (0)31 720 02 50
INSTRUCTIONS
Control principle
PULSER-M pulses the full load On - Off. PULSER-M adjusts the
mean power output to the prevailing power demand by
proportionally adjusting the ratio between On-time and Off-time.
The pulse period (=the sum of On-time and Off-time) is fixed at 60
seconds.
PULSER-M has zero phase-angle firing to eliminate RFI.
PULSER-M automatically adjusts its control mode to suit the control
object dynamics.
For rapid temperature changes i. e. supply air control PULSER-M
will act as a PI controller with a proportional band of 20K and a
reset time of 6 minutes.
For slow temperature changes i. e. room control PULSER-M will act
as a P controller with a proportional band of 1.5K.
M
Start-up and fault finding
N.B. Be careful when working in the PULSER-M. All internal
components including the cooling flange are at line voltage
potential.
Never leave the unit under power without the front cover on.
1. Check that all wiring is correct and that the sensor selector
switches are in the correct position.
2. Measure the resistance between terminals 3 and 4: At 230V:
14.4? <R<230? .
At 400V: 25? <R<400? .
3. If a minimum limit sensor is connected, set the limit potentio-
meter fully clockwise
If a maximum limit sensor is connected, set the limit potentio-
meter fully counter-clockwise
4. Connect supply voltage and twist the setpoint knob between end
stops. Check that the LED on the side of PULSER-M goes on
and off when the setpoint value is higher and lower than the
temperature at the sensor. When the setpoin knob is set to the
actual sensor temperature and the min/max-potentiometer is set
so that it doesn't influence the control, the LED will pulse On-Off
as the PULSER-M pulses current to the heater. The pulse cycle
period is approx. 60 seconds. Check with a clamp-on ammeter
that current is flowing to the heater.
INSTRUCTIONS
Something wrong?
5. Dissconnect power and remove wiring to external sensor/
setpoint if any. Measure the resistance of the sensor and
setpoint separately. The potentiometer resistance varies 0 -
5k? ?between the lower and upper end-point. The sensor
resistance varies between 10k? and 15k? between the
upper and lower ends of the sensor temperature range. I.e. a
TG-K330 has 15k? at 0°C and 10k? at 30°C. The resistance
changes by 167? /°C.
6. Set both the sensor selector switches next to the main
terminal strip in the downwards position but leave the sensor
inputs G-G open. Set both min/max-switches in the
downward position Switch on the voltage.
PULSER-M should give full uninterrupted power and the
LED should be lit. Check with a clamp-on ammeter that
current is flowing to the heater.
If the LED is not lit and no current is flowing: Check that you
have power on terminals 1 and 2 and recheck the positions
of the sensor selector switches. If OK the PULSER-M is
probably faulty.
If the LED lights up but no current is flowing: Recheck the
heater resistance as above. If OK the PULSER-M is probably
faulty.
7. Shut off power and short-circuit the sensor input G-G but
leave the switches in the downwards position. Switch on
power again.
PULSER-M should not give out any power at all and the LED
should not light up. Check with a clamp-on ammeter that no
current is flowing to the heater.
If the LED is off but current is flowing to the heater the
PULSER-M is faulty.
If the LED is lit, recheck the shorting of terminals G-G. If OK
the PULSER-M is faulty.
8. If everything OK this far the PULSER-M and the sensor/
setpoint are OK.
Shut off power, remove the wire strap from G-G and
reconnect external sensor/setpoint if any. Set the selector
switchesto their correct positions according to the
appropriate wiring diagram for the installation at hand.
Replace front cover and setpoint knob. Connect power.