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Commissioning
7.1.2
RESU Plus
There are four LED indicators on the front of the RESU Plus to show its operating status.
ON: This indicator stays on while the battery pack is supplied with power for operation.
Pack 1: This stays on while the first battery pack is online with the RESU Plus.
Pack 2: This stays on while the second battery pack is online with the RESU Plus.
Fault: This comes on when one or both battery packs are in a warning or fault state.
See Troubleshooting on page 42
NOTE
At the first commissioning, or when one is additionally installed later, one of the two
battery packs may be inoperative due to the voltage difference between them. The
responsible battery back cannot be online with the RESU Plus until its voltage level
becomes the same as that of the normal one.
7.2 Commissioning battery pack
If only one battery pack is installed, follow these steps to put it in operation.
1. Move the circuit breaker switch to the ON position to turn on the battery pack.
2. Make sure that the ON indicator is on. If it stays off, do not use the battery pack. Contact
LG Chem or your distributor.
3. Turn on the inverter.
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