Detector Relay Module - Prosense PQ Series Installation And User Manual

hand module or display. Detectors can be assigned to use addresses from 1 to 247 (including
247). Address zero (0) cannot be used by detectors.
The last detector in the chain should have 120 Ohms RS485 termination resistor. The resistor
is already implemented on the board by default but not activated. User should activate the
termination resistor via using the RS485 termination pin shown on Diagram-11 once the

Detector Relay module:

installation completed.
Prosense provides optional relay modules for Prosense PQ detectors. The relay module details
are given below:
Alarm level adjustment pins
Relay module
mounting hole
Alarm2 Relay LED
Alarm1 Relay LED
Fault Relay LED
Power LED
The relay board has 3 relay outputs:
Port Usage
Fault Fault Relay output
AL1
Alarm 1 Relay output
AL2 Alarm 2 Relay output
Each relay has 3 pins grouped on board to adjust how to behave in case of alarm which are
NO: Normally Open
NC: Normally Close
The relay output pin positions shown below:
PRS-UM-PQ-EN-Rev.05-18.06.2020
Relay board connection socket
Alarm2 Alarm1
Relay Out connection socket
Diagram 12: Relay module
Energised
Non-Energised
Non-energised
Table 7: Relay module output ports
Normally Open (NO)
Normally Close (NC)
Table 8: Relay output pin positions
Fault
Energy Contact (NO / NC)
NO
NO
NO
Relay module
mounting hole
Relay out adjustment
pins (NO / NC)
21