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Technical description
7 Applications
7.9 Trip Circuit Supervision
VM265.EN011
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When using the dry digital inputs DI7..., using the other
inputs of the same group, sharing a common terminal, is
limited.
When using the wet digital inputs DI1 ... DI6, an auxiliary
relay is needed.
Using optional DI19, DI20
Note: In the device only the optional digital inputs DI19 and DI20 are dry (see
the ordering code for this option).
Figure 7.9.1-1 Trip circuit supervision using a single dry digital input and
an external resistor R. The circuit-breaker is in the closed position. The
supervised circuitry in this CB position is double-lined. The digital input is
in active state when the trip circuit is complete. This is applicable for dry
inputs DI7...DI20.
Summary of Contents for 265
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