Huawei SUN2000-50KTL-ZHM3 - Page 53

Figure 5-12 DC input terminals
When the DC input is not fully congured, the DC input terminals must meet the
following requirements:
1. Distribute the DC input power cables evenly over four MPPT circuits, and
connect them preferentially through MPPT1 and MPPT4.
2. Maximize the number of connected MPPT circuits.
Number
of PV
Strings
Terminal Selection Number
of PV
Strings
Terminal Selection
1 PV1 2 PV1 and PV7
3 PV1, PV3 and PV7 4 PV1, PV3, PV5 and PV7
5 PV1, PV2, PV3, PV5 and
PV7
6 PV1, PV2, PV3, PV5, PV7
and PV8
7 PV1, PV2, PV3, PV4, PV5,
PV7 and PV8
8 PV1, PV2, PV3, PV4, PV5,
PV6, PV7 and PV8
Procedure
Step 1 Connect the DC power cable.
CA UTION
Use the positive and negative Amphenol Helios H4 metal terminals and DC
connectors supplied with the solar inverter. Using incompatible positive and
negative metal terminals and DC connectors may result in serious consequences.
The caused device damage is not covered under any warranty.
SUN2000-(50KTL-ZHM3, 50KTL-M3)
User Manual 5 Electrical Connections
Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd. 45