Operation and setting
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VME420_D00026_03_M_XXDE/04.2019
5.5.4
Assigning alarm categories to the alarm relays
Undervoltage, overvoltage, underfrequency, overfrequency and device-relat-
ed error messages of the voltage relay can be assigned to the alarm relays K1
(r1, 1) and K2 (r2, 2. K1 is set at the factory to signal an alarm in the event of
overvoltage, and K2 is set to signal an alarm in the event of undervoltage.
A few assignment examples for alarm relay K1 are illustrated below:
Alarm relay K1: Assigning the category device error
Alarm relay K1: Assigning the category undervoltage
3x
>1,5 s
3x
3x
3x
>1,5 s
1x
