RCD test button check

The RCD test button check uses the function test button built into a residual-current device to simulate a fault and confirm that the device trips. Some Sunny Central inverters send their control supply voltage out to external devices, and a residual current breaker protects those devices. That breaker has a function test button. On some devices, press the test button and then measure the downstream connection. If voltage is still present, the RCD is miswired and must be wired correctly. On other devices, press the test button and check that the contactors fed by the RCD drop out. If they stay energized, the RCD wiring must be corrected. Switch the residual-current device back on once the test is finished. The check helps find residual current device failure and RCD wiring errors. When commissioning, also confirm that any RCD on the AC circuit feeding an inverter is a type chosen according to IEC TS 62548. Some inverters need a type B RCD.

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• sentence 1: support check: partial - Passage says the function test button simulates the failure, but doesn't explicitly say it confirms the device trips.
• sentence 6: support check: partial - Wiring errors are supported by the tasks, but RCD device failure detection is only implied by the failure simulation, not stated.
• sentence 1: review: partial - The passage says the function test button simulates the failure, but it does not say the check confirms that the device trips.
• sentence 4: review: partial - The tables say to press the test button, check that contactors Q1-Q3 go non-operative, and rewire F2 if they do not deactivate, but they never say the contactors are fed by the RCD. -->