Woodward HighPROtec MCDLV4, Manual, Page: 1065 / 1275

Supervision
This Notice applies to protective devices that offer control functionality only!
This protective element requires, that a switchgear (circuit breaker is assigned
to it.
In this case, the trip circuit supply voltage serves also as supply voltage for the digital inputs and so the supply
voltage failure of a trip circuit can be detected directly.
In order to identify a conductor failure in the trip circuit on the supply line or in the trip coil, the off-coil has to be
looped-in to the supervision circuit.
The time delay is to be set in a way that switching actions cannot cause false trips in this module.
1065 MCDLV4 DOK-HB-MCDLV4-2E