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Raychem-AR-H58692-ACS30UIT2Programming-EN-1805
1.9. SOFTWARE ORGANIZATION
The ACS-30 is organized around the concept of heating control circuits connected to relay outputs
from the ACS-PCM boards within the ACS-PCM2-5 power control panels. A simple circuit consists
of one output relay and one RTD sensor input.
LC = Line current
GF = Ground fault
ACS-PCM2-5 / Circuit #
1
LC
GF
Output
Relay 1
Local/A
RTD
2
LC
GF
Output
Relay 2
Local
RTD
3
LC
GF
Output
Relay 3
Local
RTD
4
LC
GF
Output
Relay 4
Local
RTD
5
LC
GF
Output
Relay 5
Local
RTD
Fig. 1.2
Simple control circuit
Heating control circuits can also be connected to the dry contact output of BMS systems, external
monitoring devices or moisture sensing controllers for roof & gutter and snow melting applications.
Refer to Appendix 5.3 Connecting External Control Devices on page 130 for more detailed
information.
LC = Line current GF = Ground fault
ACS-PCM2-5 / Circuit #
1
LC
GF
Output
Relay 1
Local/A
RTD
2
LC
GF
Output
Relay 2
Local
RTD
3
LC
GF
Output
Relay 3
Local
RTD
4
LC
GF
Output
Relay 4
Local
RTD
5
LC
GF
Output
Relay 5
Local
RTD
External Override device,
BMS output or snow controller
EUR-5A
APS-3C
GIT-3A*
LCD-7A
* Requires external dry contact.
Dry
alarm
contact
Fig. 1.3
External control circuit
