7EN02-0477-02

Monitoring system insulation

The device monitors the ungrounded power system insulation in resistance in accordance with the following timing diagram when the locating signal is available:

1 Network insulation is normal and no alarm
2 An insulation fault occurred. Active alarm is displayed. Press button to acknowledge the alarm. See Relay Mode for more information on relay modes. See Relay Acknowledgement for more information on relay acknowledgement.
3 An insulation fault occurred. Active alarm acknowledged.
4 The insulation fault is corrected. The alarm LED turns off. The device reverts to normal status.

QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

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