Hybrid Inverter User Manual
© 2022 Hoymiles Power Electronics Inc. All rights reserved.
16
WARNING
Before connecting, please make sure all requirements listed below are followed.
• The voltage, current, and power ratings of the panels to be connected are
within the allowable range of the inverter, ensure the polarity is correct,
and please refer to the Technical Data in Chapter 5 for voltage and current
limits.
• Since the inverter is a transformer-less structure, please do not ground
either output of the PV panels.
• If the inverter is integrated with a PV switch, please make sure it is in the
“off” position. Otherwise please use an external PV switch to cut off the PV
connection during wiring and when necessary.
• Use the PV connectors in the accessory box for PV connections. Damage to
the device due to the use of an incompatible terminal shall not be covered
by the warranty.
• Please make sure the connectors are correct, not the battery connectors, as
they look similar.
NOTICE
Procedure
Step 1
• Unscrew the PV connector counterclockwise.
• Remove the insulator.
• Remove the inner cable gland.
1
2
3
PV+
PV-
1
Step 2
• Strip the insulation from each DC cable by 7-8
mm.
• The conduct core-section: 2.5-4 mm².
• Assemble cable ends with crimp contacts by
crimping pliers.
2
:4-5mm
S
7-8mm
Step 3
• Lead the cable through the cable gland.
• Insert the crimp contact into the insulator until
it snaps into place.
• Gently pull the cable backward to ensure a firm
connection.
• Tighten the cable gland and the insulator.
3
3
2
1
PV+
PV-
4
Step 4
• Check the cable connection of the PV string for
polarity correctness and ensure that the open-
circuit voltage in any case does not exceed the
inverter input limit of 1,000V
• Connect the PV connectors to the inverter.
There should be a “click” if it is plugged in
correctly.
Click
4
3.3.2 PV Wiring Connection
