6 Checking installation
6.1 Identifying hardware and software version
• Check the label on the case of the protection relay for the hardware and software
version information.
• Check the module labels to identify the modules inside the protection relay.
6.2 Checking mounting
• Check that all fixing screws are tight and that all cables are connected.
6.3 Energizing protection relay
Check all connections to external circuitry to ensure correct installation before
energizing the protection relay and carrying out the commissioning procedures.
Also, remove the protective film.
Figure 84: Removing the protective film
1MRS759115 E
Checking installation
REX640
Installation Manual
91
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