Allocate A Relay Channel For The Circulation Pump - Velbus VMB1TC Manual

Allocate a relay channel for the circulation pump

Some valves have a contact that closes when the valve is open. By wiring all the contacts in parallel, the circulation pump
can be steered. For valves that do not have these contacts, a relay can be assigned to the temperature sensors to steer
the circulation pump.
In our example the pump must be active as soon as one of the sensor modules indicates heating is required. This is done
through relay channel 2 of the first relay module.
1. Set all sensor module in anti-freeze mode by
pressing the push button on the front panel
repeatedly until all LEDs are off
2. Set the MODE and TIME1 rotary switches for
channel 2 of the first relay module to '0' (instant
control).
3. Remember the address of this relay module to
reinstate it later on.
4. Set the address of the first relay module to 'C2'. The
'MODE 2' LED flashes to indicate push button
learning mode (PBM).
Out1 Out2
Mode/ Mode/ Mode/ Mode/
ADDR. ADDR. Time2 Time2 Time2 Time2
0 0 0
Time1 Time1 Time1
0 0 0
Learn CH1 CH2 CH3
Fx : OFF
x=CH1...4
Ex : ON
: : 9x :
Dx TGL Bx TG1 ST1
8x
Cx : PBM Ax : TG2 : ST2
ON Rx Tx Mode1
20
Out3 Out4
4 Channel relay module
Mode/
Time2 Time1 Mode/Time2
0 0 0:Moment Start-stop
1:5s Staircase
2:10s Non-Retrigger
3:15s Turn Off Delay
4:30s Turn On Delay
5:1' Trig Release
Time1
6:2' Blink
0 0
7:5' 5'
8:10' 10'
9:15' 15'
A:30' 30'
CH4
B:1h 1h
C:2h 2h
VMB4RY D:5h 5h
E:1day 1day
velleman
F:Toggle Toggle
Mode2 Mode3 Mode4
VMB1TC Temperature controller manual – rev 5.0
5. Press and hold the pushbutton on the front panel of
the first temperature sensor and simultaneously
press and hold the lowest push button (HEAT) until
the relay is energised and the red LED on the sensor
module flashes. First release the lowest push button
(HEAT) followed by the push button on the front
panel.
6. Press and hold the pushbutton on the front panel of
the second temperature sensor and simultaneously
press and hold the lowest push button (HEAT) until
the relay is energised and the red LED on the sensor
module flashes. First release the lowest push button
(HEAT) followed by the push button on the front
panel.
7. Press and hold the pushbutton on the front panel of
the third temperature sensor and simultaneously
press and hold the lowest push button (HEAT) until
the relay is energised and the red LED on the sensor
module flashes. First release the lowest push button
(HEAT) followed by the push button on the front
panel.
8. Set the address of the first relay module back to its
original value.