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7
Power-on Commissioning
7.1
Preparing for Power-On
Turn on the battery breaker QF1 in the lithium battery cabinet.
Turn on the BCU power switch QS1 in the lithium battery cabinet.
(Optional) If there are multiple lithium battery cabinets, repeat the preceding steps.
If the ICC cabinet software needs to be upgraded during the initial site setup, use either of
the following power supply modes to perform the upgrade:
•
Switch off the battery circuit breaker QF1 in the lithium battery cabinet. Perform the
upgrade when PV power is supplied to each power module in the ICC cabinet.
•
Turn off the solar input switches of all power modules in the ICC cabinet. Perform the
upgrade when the ICC cabinet is powered by the lithium battery cabinet.
Power-On Mode of the ICC Cabinet
7.2
Powering On the ICC Cabinet Using PV
•
You can perform PV power-on commissioning only when the sunlight is normal.
•
Check that the PV input voltage is between 200 V DC to 980 V DC.
•
If the power indicator (green) on the front panel of the HSU is on, the cables are
connected correctly. If the indicator (green) is off, the positive and negative power cables
may be reversely connected and need to be corrected.
Check that the PV input, battery, and AC input and output cables are correctly connected.
Powering On the ICC Cabinet Using a Lithium Battery
•
The battery supply is connected preferentially at night or when PV energy is insufficient.
•
Required tools such as a multimeter and insulation gloves are available.
•
The PV switch and AC output switch in the ICC cabinet are OFF.
•
If the power indicator (green) on the front panel of the HSU is on, the cables are connected
correctly. If the indicator (green) is off, the positive and negative power cables may be
reversely connected and need to be corrected.
Turn the solar input switch in the ICC cabinet to ON.
20
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