Alarms for power and port failure – LevelOne IES-0520 User Manual
Page 12
IES-0520 User Manual
Page 11
Alarms for Power and Port 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.
This DIP Switch features the Port Fault Detection; once enabled, it sends fault signal (relay
opens) when the port link is broken
On: Enable Port Fault Detection
Off: Disable Port Fault Detection
Note: Pin No. maps to Port No & extra Pin has no function
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.