PowerCube 5000 (SUN2000-150KTL-S0)
Installation Guide
9 Power-on and Commissioning
Copyright © Huawei Technologies Co., Ltd.
2. Turn the AC output switch in the cabinet to OFF.
Step 2 Measure as follows:
1. Use a multimeter to check that there is no short circuit between AC input L1, L2, L3, N,
and PE bars.
2. In a parallel connection scenario, use a multimeter to check whether the AC wire
sequence of two cabinets is correct. There should be short-circuiting between U and U, V
and V, W and W, N and N, L1 and L1, L2 and L2, L3 and L3, as well as PE and PE of
the two cabinets.
3. Use a multimeter to check that there is no short circuit between the positive and negative
battery terminals, positive terminal and PE, as well as negative terminal and PE.
4. Use a multimeter to check that there is no short circuit between the positive and negative
PV input terminals, positive terminal and PE, as well as negative terminal and PE.
Eliminate any short circuits before connecting the battery supply.
Step 3 Check that the battery string voltage is in the range of 336 V DC to 680 V DC using a clamp
meter.
Step 4 Connect the battery supply.
1. Switch the battery circuit breakers to ON.
2. Hold down the battery startup button for 5s. Observe the power indicator on the front
panel of the HSU. If the indicator is steady green, the HSU works properly.
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