Commissioning - Delta M30A 231 Operation And Installation Manual

5.4 De-Commissioning
If it is necessary to remove the inverter from active operation for maintenance or
replacement, please follow the instructions below.
To avoid serious injury, please follow the procedure below.
CAUTION : HOT SURFACES, DO NOT TOUCH !
- Please be careful of hot surfaces if the inverter is just shutting down.
- Not to do any maintenance until inverter is sufficiently cooled down.
The inverter weighs more than 42 kg (92 lb).
When the inverter is improperly handled or dropped during transportation or
removed from the rack, it may cause personal injury.
- Switch off external AC circuit breaker or switch to disconnect the electrical grid from
the inverter chassis.
- Switch off the DC switch to cease inverter operation.
- Use H4 wrench tool to disconnect each string from the chassis mounted H4 terminals.
■ RS-485 Communication module
1. Remove the communication module from inverter.
2. Remove all communication cables from the module terminals.
3. Reinstall the communication board assembly in inverter.
DANGER : ELECTRICAL HAZARD!!
CAUTION : POSSIBILE INJURY !
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Maintenance