Connecting Cables - Huawei SUN2000 Series User Manual

SUN2000 Smart PV Optimizer
User Manual
----End

4.4 Connecting Cables

Ensure that the input (IN) and output (OUT) power cables of the optimizer are
correctly connected. If they are reversely connected, the device may be damaged.
Step 1 Connect input and output power cables to the optimizer.
1.
2.
Figure 4-6 Connecting the input and output power cables of the optimizer
Step 2 Use a multimeter to measure the resistance of the PV string when the irradiance is
adequate. The resistance level of the multimeter affects the measurement
precision of the PV string output resistance. Select the minimum resistance level
that meets the measurement requirements.
Issue 04 (2023-04-21)
Figure 4-5 Installing the optimizer to the PV module frame with a frame
mounting bracket (front installation)
NO TICE
Connect the optimizer input power cables (IN) to the PV module junction box.
Connect the optimizer output power cables (OUT) to form a PV string.
Copyright © Huawei Digital Power Technologies Co., Ltd.
4 Installation and Commissioning
28