ABB Commander C1900 - Channel Connections; 4-Relay Module Connections; 8-Digital Inputs or Outputs Connections

10 C1900 | CIRCULAR CHART RECORDER | CI/C1900/REC-EN REV. B
…4 Electrical connections
Channel connections
1
2
3
4
5
6
7
8
9
10
11
12
4
6
4
5
6
4
5
6
3
6
3
6
3
6
3
4
Tx
Analog output (see Note below)
See Note below
Logic inputs (see Note below)
Connection summary
Voltage Current
(non 2-wire transmitters) *
3-wire RTD 2-wire RTD and resistance
Thermocouple Low voltage (mV)
2-wire transmitter
(not available on non-upgradeable version)
Note. Not applicable to type 2 modules
Common
Logic 1
Logic 2
Normally open
Common
Normally closed
* Recommended diode:
Diode forward voltage >0.8 V @ 20 mA or use 2 × 1N4001 general purpose diodes in series
Analog input (see B to H)
Relay output
Red
White
Red
Link
White
Red
4-relay module connections
1
2
3
4
5
6
7
8
9
10
11
12
Normally closed
Normally open
Common
Normally closed
Normally open
Common
Normally closed
Normally open
Common
Normally closed
Normally open
Common
Relay 1
Relay 2
Relay 3
Relay 4
8-digital inputs or outputs connections
1
2
3
4
5
6
7
8
9
10
11
12
Common
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Input 8
Common
Common
Output 1
Output 2
Output 3
Output 4
Output 5
Output 6
Output 7
Output 8
Common
Output
connections
Input
connections
or