Control Board - Carel heaterSteam User Manual

4.3 Control board

The control board (S) is inside of the electrical panel in the wall dividing.
The auxiliary connections (probes, remote terminal, alarm) are made by
inserting the cables form the outside into the electrical panel.
To do this, use cables gland located on the base of the unit to the plug-in
screw terminals on the control board.
Key:
Terminal Function
M1 M1.1 GND (G0)
M1.2 Controller power supply
M2 M2.1 Main room probe signal
input or signal from external
controller
M2.2 GND
M2.3
Probe power supply (+G)
M2.4
Digital input for backup/
rotation function
M2.5 Limit humidity probe signal
input
M2.6 GND
M2.7 GND
M2.8
Remote on/off contact
digital input
M3 M3.1
M3.2 Fieldbus
M3.3
M5 M5.1 Unit status contact (NO)
M5.2 Unit status contact
common
M6 M6.1 Alarm common
M6.2 NC alarm contact
M6.3 NO alarm contact
1 2 1 2 1 2 3 4 5 1 2 3
J17C J17L J3 J16 M3 J18
M9 M2 M8
1 2 1 2 3 4 5 6 7 8 1 2
Control signal
Fig. 4.k
Electrical specifi cations
24Vac +10%/-15% 50/60Hz
0/1V, 0/10V, 2/10V, 0/20mA,
4/20mA, NTC 10 kΩ a 25 °C
+12 Vdc, maximum current that
can be delivered 50 mA; Protec-
tion against short-circuits
Maximum current output: 5 mA;
Maximum voltage with contact
open: 13 Vdc
0/1V, 0/10V, 2/10V, 0/20mA,
4/20mA, NTC
Maximum current output: 5 mA;
Maximum voltage with contact
open: 13 Vdc
Tx/Rx-
Tx/Rx+
GND
250 Vac; 2 A with resistive load;
2 A with inductive load
250 Vac; 2 A with resistive load;
2 A with inductive load
UR002-UR013
Fig. 4.i
1 2 1 2 3 4 5 6 1 2
J21 J23 J20 J24
M12 M1 M5
3 2 1 1 2 1 2 1
Ethernet
Unit Alarm
RS485 Serial
status
relay
Terminal Function
M8 M8.1 Production request analo-
gue output
M8.2 GND
M9 M9.1 Backup and rotation contact
common
M9.2 Backup and rotation NO
contact
M11 Ethernet port
M12 M12.1
M12.2 BMS 485
M12.3
Earth connection
J18 pLAN/display terminal
J19 J19.1 Auxiliary/blower contact
(NO)
J19.2 Auxiliary/blower contact
common
USB Port (type A)
Ethernet RJ45 Port
19
UR020-UR080
Fig. 4.j
2 1
J19
M6
2 3
relay
Electrical specifi cations
Output voltage range: 0-10 V
max 10 mA
250 Vac; 2 A with resistive load;
2 A with inductive load
Tx/Rx-
Tx/Rx+
GND
250 Vac; 2 A with resistive load;
2 A with inductive load
"heaterSteam" +0300080EN - rel. 1.0 - 27.04.2016
ENG
Tab. 4.b