How to Connect C18 Series Partition Sensors to a UHCI
Question
How do I wire C18 series partition sensors to my UHCI?
- SGM1639 (receiver)
- SGM1640 (emitter)
Please note that the labels of the UHCI may vary. Please refer to this article for more information: Unison Heritage Contact Interface (UHCI) Wall Mount Label Changes
Steps
- Locate the Common terminal (#2) on the Switch In phoenix connector and land a spare piece of 20AWG wire
- Connect the wire in terminal #2 on the phoenix connector to a spare terminal on the terminal block.
- Connect the brown wire from both the receiver and the emitter to +24V on the terminal block.
- Connect the blue from both the receiver and the emitter to our newly created common (from #2 on the phoenix connector)
- Connect black wire (N.O.) or white wire (N.C.) from the receiver to a UHCI contact input on the terminal block.
Note
- The yellow LED on the receiver will illuminate when it is in line of sight of the emitter and will turn off when the beam is broken.
- When the receiver detects the emitter, the relay output will be in the "normal" state. So:
Wall State | N.O. (Black Wire) State | N.C. (White Wire) State |
Open | 0VDC | +24VDC |
Closed | +24VDC | 0VDC |