Huawei SUN2000 Series User Manual page 49

SUN2000 Smart PV Optimizer
User Manual
Table 6-2 Checking the optimizer output resistance
Optimizer Output
Resistance
0.9 kΩ ≤ R3 ≤ 1.1 kΩ
R3 < 0.9 kΩ
R3 > 1.1 kΩ
6.2 How Do I Obtain Contact Information?
If you have any questions about this product, please contact us.
Table 6-3 Customer service contact information
Regio
n
Europ
e
Issue 04 (2023-04-21)
Possible Cause
The optimizer is
normal.
If the probes of the
multimeter are
connected
correctly, the
optimizer is faulty.
NOTE
● The irradiance is
● The optimizer
● The optimizer
● The optimizer is
Country/ Email
Region
France eu_inverter_support@huawei.com
Copyright © Huawei Digital Power Technologies Co., Ltd.
Suggestion
-
Replace the optimizer.
If the probes are
reversely connected,
the measured
resistance is smaller
than the resistance
measured when the
probes are correctly
connected, which
may be less than 0.9
kΩ.
1. Measure the resistance when
low.
2. Connect the optimizer input
input power
cables are not
3. Correct the optimizer cable
connected.
output power
cables are
connected to
4. If the resistance is still
the PV module
output power
cables.
faulty.
the irradiance is adequate.
power cables.
connections. Connect the
optimizer input power cables to
the PV module output power
cables.
abnormal, replace the
optimizer.
Tel
0080033888888
6 FAQ
43