Shunt Trip Wiring—Frames 5, 6, and 6L
Because frame 5, 6, and 6L drives and frame 5 and 6 bus supplies do not have main input power control, a shunt trip feature is provided. An LCL capacitor failure triggers a code 14112 ‘Capacitor Fault’ and the shunt trip relay output on the power feedback board closes. This action trips the upstream main supply contactor or circuit breaker and removes the failed capacitor from the main AC input.
IMPORTANT:
It is recommended that frame 5 and 6 drive and bus supply installations include the shunt trip circuit.
Shunt Trip Wiring Examples
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