INSTRUCTION
i
Read this instruction before installation
and wiring of the product
PULSER-ADD
Consult documentation in all cases where this symbol
is used, in order to find out the nature of the potential
hazards and any actions to be taken
1
PULSER-ADD
Triac controller for proportional control
of electric heating, add-on unit
PULSER-ADD is a complete proportional controller for electric
heating. It has automatic voltage adjustment. It has no sensor input
but is intended to be controlled by another PULSER unit.
PULSER-ADD is only intended for electric heating control. The con-
trol principle makes it unsuitable for motor- or lighting control.
PULSER-ADD cannot control 3-phase loads.
Installation
Remove the front. The locking screw is behind the set-point knob.
Mount PULSER‑ADD vertically with the cooling flange at the top. Use
screws with a maximum head diameter of 5.5mm.
PULSER-ADD emits approx. 20W of heat which must be dis-
sipated. Ambient temp.: 0 - 30°C, non-condensing.
Protection class: IP20.
Wiring
Supply voltage
Terminals 1 and 2. Not polarity sensitive.
Supply voltage: 200 - 415V AC, 50 - 60 Hz with automatic voltage
adjustment. Maximum current 16A.
Control principle
PULSER‑ADD pulses the full load On ‑ Off parallel to the master unit
it is connected to.
PULSER‑ADD has zero phase‑angle firing to eliminate RFI.
Start-up and fault finding
Be careful when working in the PULSER-ADD. 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.
2. Measure the resistance between terminals 3 - 4: At 230V:
14.4
Ω
<R<230
Ω
. At 400V:25
Ω
<R<400
Ω
.
3. Connect supply voltage and twist the setpoint knob of the master
unit between end stops. Check that the LED which can be seen
through the underside of PULSER‑ADD goes on and off at the
same time as the LED of the master unit. Check with a clamp-on
ammeter that current is flowing to the heater.
Anything wrong?
1. Disconnect supply power. Remove the control signal wiring from
terminals I and I. Reconnect power. The LED should be continu-
ously off and no current should flow to the heater. Disconnect
power and connect the terminals I and I to the terminals 1 and 2.
Reconnect power. The LED should be continuously on and full
current should flow to the heater.
2. If everything is OK this far the PULSER-ADD is OK and the fault
must be found elsewhere.
This product carries the CE mark.
For more information, see www.regincontrols.com.
Contact
AB Regin, Box 116, 428 22 Kållered, Sweden
Tel: +46 31 720 02 00, Fax: +46 31
www.regin.se, [email protected]
1882H
MA
Y 19
EN
I I
1 2 U 3 4 U
Figure 1: Wiring of supply voltage and load
The supply voltage to PULSER-ADD should be wired via an all-pole
switch with a minimum contact gap > 3mm. The cooling flange is live.
Load
Terminals 3 and 4.
Resistive single- or two-phase heater
Maximum load:
3680W at 230V (16A)
6400W at 400V (16A)
Minimum load:
230W at 230V (1A)
400W at 400V (1A)
Control signal
Terminals I and I. Not polarity sensitive.
Wire to terminals U and U in the main unit.
PULSER...
PULSER-ADD
1 2 U 3 4 U
I I
K 1 2 U 3 4 U K G G
Figure 2: Wiring of control signal
PULSER-ADD is galvanically separate from the main unit.
They may therefore be supplied from different phases. The PULSER‑ADD
control signal has high potential compared to neutral and earth (>200V).
Thus, wiring of the control signal must comply with local codes for line
voltage installations. The control signal must be wired so that the signal is
cut when the supply voltage is cut.