LevelOne IES-0910 - Manual (Page 10)

IES-0910 User Manual Page 10
Alarms for Power Failure
Step 1: There are two pins on the terminal block are used for power failure detection. It
provides the normally closed output when the power source is active. Use this as a dry
contact application to send a signal for power failure detection.
Te
rmin
al
B
lo
ck
PW1
+ 12 – 30VDC
– Power Ground
PW2
+ 12 – 30VDC
– Power Ground
Earth Ground
Relay Output 1A @ 12 - 30VDC
1. The relay contact opens if Power1 or Power2 falls
Special note:
The relay output is normal open position when there is no power to the switch.
Please do not connect any power source to this terminal to prevent the shortage to
your power supply.