7EN02-0423-00

Corrected insulation fault signal (Corr. Flt. Signal)

You can set the corrected insulation fault signal acknowledgement as per the usage of loads connected to the relay.

To facilitate insulation fault correction, the insulation alarm relay can be reactivated for 3 seconds when the insulation level rises above the setup threshold. This makes it easier to locate the insulation fault when using the method that involves opening each of the circuit breakers in turn. The circuit breakers may be located at some distance from the device, the external signal allows you to identify and locate the insulation fault when working remotely.

The allowed values for this parameter are ON and OFF. The default value is OFF.

NOTE: This parameter is applicable only if the parameter Ack. Al. Relay (acknowledgement insulation alarm relay) is set to ON.

In system configurations where the insulation alarm relay is connected to an external signaling device (for example, horns or lamps), the relays are reverted back to their normal position, depending on their setup, when the insulation alarm is acknowledged.

Corrected insulation fault signal set to ON

0 An insulation decrease is detected on the system. The insulation resistance drops below the preventive insulation alarm threshold. The preventive insulation alarm relay switches.
1 An insulation fault is detected on the system.
2 Once T (insulation alarm delay) has elapsed, the device switches to the insulation alarm state. The insulation alarm relay switches.
3 Press the button to acknowledge the insulation alarm. Both the insulation alarm relay and the preventive insulation alarm relay revert back to their initial state.
4 The insulation fault is corrected. The insulation fault alarm relay toggles for 3 s. The device reverts to normal status.

Corrected insulation fault signal set to OFF

0 An insulation decrease is detected on the system. The insulation resistance drops below the preventive insulation alarm threshold. The preventive insulation alarm relay switches.
1 An insulation fault is detected on the system.
2 Once T (insulation alarm delay) has elapsed, the device switches to the insulation alarm state. The insulation alarm relay switches..
3 Press the button to acknowledge the insulation alarm. Both the insulation alarm relay and the preventive insulation alarm relay revert back to their initial state.
4 The insulation fault is corrected. The insulation fault alarm relay does not toggles for 3 s. The device reverts to normal status.
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