Test cycle
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NGRM7xx_D00292_07_M_XXEN/02.2022
10. Test cycle
Since the relays are not monitored in the hardware or software, the relays must be test-
ed at regular intervals to verify proper functioning. The frequency of the test cycle is
subject to the safety requirements of the operator but it must be carried out at least
every six months.
Starting the test
Start the test either by pressing the TEST button or via the menu 10.3 or the input I3
(activate for more than 150 ms).
During the test it must be ensured that the relays can actually switch off!
The following settings are required:
Ground-fault relay menu 6.6.1.2 relay test "on"
NGR relay menu 6.6.2.2 relay test "on"
Trip relay menu 6.6.3.2 relay test "on"
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