Commissioning7
7.1 Inspection before commissioning
Check the following items before starting the inverter:
Make sure the inverter DC switch and external circuit breaker are disconnected.
Make sure the inverter has been correctly mounted with wall bracket.
Make sure nothing is left on the top of the inverter.
Make sure the communication cable and AC connector have been correctly wired and tightened.
Make sure the inverter’s exposed metal surface has a ground connection.
Make sure the DC voltage of the strings does not exceed the permitted limits of the inverter.
Make sure the DC voltage has the correct polarity.
Make sure that the insulation resistance to ground is greater than the insulation resistance pro-
tection value.
Make sure the grid voltage at the point of connection of the inverter complies with the permitted
value of the inverter.
Make sure the AC circuit breaker complies with this manual and all applicable local standards.
Danger to life due to high voltages on DC conductors!
When exposed to sunlight, the PV array generates dangerous DC voltage which is present in
the DC conductors. Touching the DC and AC conductors can lead to lethal electric shocks.
• Only touch the insulation of the DC cables.
• Only touch the insulation of the AC cables.
• Do not touch ungrounded PV modules and brackets.
• Wear personal protective equipment, such as insulating gloves.
CAUTION
UM0035_ASW05-12kH-T2-T3_EN_V01_0523