Huawei MERC Smart PV Optimizer User Manual page 23

MERC Smart PV Optimizer
User Manual
In this scenario, the MPPT function, module-level shutdown and monitoring, and
long-string design are supported.
Figure 2-4 Required routing
Figure 2-5 Prohibited routing
Issue 05 (2023-03-31)
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● An optimizer is delivered with two types of input power cables: long (1300 mm) or short
(100 mm) cables. For PV modules with long cables, select optimizers with short cables;
for PV modules with short cables, select optimizers with long cables.
● The SUN2000-(600W-P, 450W-P2) cannot be used together with the MERC-(1300W,
1100W)-P.
● To ensure reliable communication between the inverter and optimizers, the AC and DC
power cables must be routed in different troughs or pipes with a minimum of 10 cm
spacing in between.
● To reduce EMC impact, route the home-run cable next to the cables between the PV
modules (keeping the positive and negative cables close to one another or twisting
them together) as shown in the following figure for either a single string installation or
a multi-string installation.
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2 Product Introduction
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