Allocate a relay channel for the circulation pump, Velleman – Velleman VMB1TC User Manual
Page 20
20
VMB1TC Temperature controller manual – rev 5.0
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).
Mode/
F
9
Time2
F
9
C
AB
D
E
4
5
67
8
3
0 1
2
9
F
ADDR.
E
D
C
B A
3
2
D
E
4
5
8
7 6
AB
C
1
0
23
5
4
67
8
0 1
Mode/Time2
Trig Release
Turn On Delay
Non-Retrigger
Turn Off Delay
4 Channel relay module
Mode4
30'
A:30'
Mode1
Ax
Bx
CH1
Rx
ON
Learn
Fx
Ex
Dx
Cx
: ON
PBM
TGL
:
:
OFF
:
Tx
CH2
x=CH1...4
TG1
TG2
:
:
ST2
ST1
:
8x
9x :
B:1h
C:2h
F:Toggle
E:1day
D:5h
Mode2
VMB4RY
velleman
CH3
CH4
Mode3
5h
Toggle
1day
1h
2h
Time1
Time2
Mode/
Out2
Time1
Time2
Mode/
ADDR.
Time1
Time2
Mode/
Out1
Time1
2:10s
3:15s
5:1'
6:2'
4:30s
0:Moment
1:5s
8:10'
9:15'
7:5'
Time1
Time2
Mode/
Blink
10'
15'
5'
Start-stop
Staircase
Out3
Out4
9
F
E
D
C
B A
3
2
4
5
8
7 6
1
0
9
F
E
D
C
B A
3
2
4
5
8
7 6
1
0
9
F
E
D
C
B A
3
2
4
5
8
7 6
1
0
9
F
E
D
C
B A
3
2
4
5
8
7 6
1
0
F
9
D
AB
C
E
3
5
4
67
8
0
1 2
F
9
D
AB
C
E
3
5
4
67
8
0 1 2
F
9
D
AB
C
E
3
5
4
67
8
0 1 2
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.