Copyright CPS America Co., Ltd. Page 45
Use multi-meter to confirm the total input power of PV strings in order to
ensure the input power from PV strings will not exceed the permissible set
point of 600VDC as the maximum operating voltage of PV inverter and
the maximum DC input current should be within 20A for each pole of DC
terminal.
IMPORTANT
Configuration of the PV modules should be done by qualified
service personnel with the instructions that are provided from the
manufacturer of the PV modules.
Ensure the configuration for each string of the PV-system meets the
specifications required by the CPS grid-tied PV Inverter.
Multi-Meter
It is important to use a multi-meter to measure the DC input voltage
that is generated from the PV modules. It must not exceed 600V
DC
.
IMPORTANT
The CPS grid-tied PV Inverter is designed with a transformer-less
topology. It is recommended NOT connecting the Inverter with the PV
modules that require positive (+) or negative (-) polarity to ground.
And it is also necessary to have a circuit breaker or fuse switch installed
between PV modules and PV Inverter. When there are PV strings
connected with the circuit breaker or fuse switch, please ensure it is
turned off before connecting the DC cables to the DC input terminals of
PV inverter.
B)
For the DC cables, the terminal connectors are recommended to be
used with cables in order to ensure the effective electric conduction
between DC cables and DC terminals as shown in figure 7.1.2.
Figure 7.1.3: Terminal connectors are required for DC Cables