Figure 1. FC-20 wiring guide
Callout | Description |
---|---|
1 | Power input, 24 VAC or 24 VDC |
2 | Digital output wiring |
3 | Current-controlled VSD |
4 | Voltage-controlled actuator |
5 | Supervisory device |
6 | Current transmitter, 0 mA to 20 mA or 4 mA to 20 mA |
7 | Voltage transmitter, 0 V to 10 V or 0 V to 5 V |
8 | Dry contact input |
9 | Thermistor, resistance temperature director, or potentiometer |
Note: If you configure the
controller as a subordinate device and it is at the end of a daisy chain, install a 120
ohm resistor in parallel with the RS-485 terminal.
Figure 2. 24 VAC Class 2 transformer power input
Callout | Description |
---|---|
1 | 20 AWG copper stranded wire |
2 | Controller |
3 | H terminal |
4 | G terminal |
Figure 3. AO wiring
Callout | Description |
---|---|
1 | Field device |
2 | 22 AWG copper stranded twisted wire up to 100 m in length |
3 | Controller |
4 | Analog output (AO) terminal |
5 | COM terminal |
Figure 4. DO wiring
Callout | Description |
---|---|
1 | Field device |
2 | 20 AWG copper stranded twisted wire up to 100 m in length |
3 | DO terminal |
4 | COM terminal |
5 | Controller |
Figure 5. UI voltage mode wiring isolated
Callout | Description |
---|---|
1 | Field device |
2 | Power supply |
3 | Controller |
4 | UI terminal |
5 | COM terminal |
6 | 22 AWG copper stranded twisted wire up to 100 m in length |
7 | COM terminal |
8 | OUT terminal |
Figure 6. UI current mode wiring in loop
Callout | Description |
---|---|
1 | Field device |
2 | Power supply |
3 | Controller |
4 | COM terminal |
5 | UI terminal |
6 | 22 AWG copper stranded twisted wire up to 100 m in length |
Figure 7. UI resistance mode
Callout | Description |
---|---|
1 | 22 AWG copper stranded twisted wire up to 100 m in length |
2 | Controller |
3 | UI terminal |
4 | COM terminal |
Figure 8. UI digital dry contact input
Callout | Description |
---|---|
1 | Field device |
2 | 22 AWG copper stranded twisted wire up to 100 m in length |
3 | Controller |
4 | UI terminal |
5 | COM terminal |
6 | Dry contact, normally open or normally closed as required |