7EN02-0422-01

Inducing two dummy faults

  1. Induce a dummy fault on one of the channel. For example: Channel 12.

    The device displays the insulation alarm on the detected channel 12, the alarm LED turns ON, and the no alarm LED turns OFF.

    Channel 12 displaying fault in Commissioning screen is as follows:

  2. Induce a dummy fault on another channel. For example: Channel 7.

    The device displays the insulation alarm on the detected channels 7 and 12, the alarm LED remains ON, and the no alarm LED remains OFF.

    Channels 7 and 12 displaying fault in Commissioning screen is as follows:

    NOTE: If both the induced dummy faults are zero-impedance fault, then the device displays the insulation alarm on one channel only either channel 7 or 12.
  3. Recover the dummy fault on channel 7.

    The insulation alarm on the channel 7 is recovered. Because the dummy fault still exist on channel 12, the device displays the insulation alarm on channel 12, the alarm LED remains ON, and the no alarm LED remains OFF.

    Channel 12 displaying fault in Commissioning screen is as follows:

  4. Recover the dummy fault on channel 12.

    The device returns to toroid detected state, the alarm LED turns OFF, and the no alarm LED turns ON.

    The Commissioning screen in toroid detected and no fault state is as follows:

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