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Alarm Output Terminals Overview
LPU 400 Main Board
LPU 400
Full
Assembly
GND
Z1
Z2
GND
GND
Z3
Dry Contact Relay Alarm Outputs
Each Input has a dedicated
output. Zone 1 will trigger Relay
1 (RLY1)
By Default, the outputs are
Normally Closed (NC) but can be
changed to Normally Open (NO)
In the LPU Calibration software if
available.
Alarm
LED
GND
PWR
Power Outage
(Power Cut / Drop)
Alarm Relay Output