Checking the Connections

Qualified person

DANGER

Danger to life from electric shock due to high voltages

High voltages are present inside the inverter. When the enclosure lid is removed, live components can be touched that can result in death or serious injury due to electric shock.

  1. Disconnect the inverter from all voltage sources ( > Disconnecting the Sunny Island from Voltage Sources).
  2. After switching off the inverter, wait at least 15 minutes before opening the inverter to allow the capacitors to discharge completely.
  1. Make sure the Sunny Island is dead. ( > Disconnecting the Sunny Island from Voltage Sources).
  2. Ensure that the cables on the DC+ and DC‒ connections are securely fastened (torque: 12 Nm).
  3. Ensure that the connections are free of corrosion.
  4. Ensure that the cables in the AC1 and AC2 connections are securely fastened.
  5. Close the Sunny Island (see the Sunny Island inverter installation manual).
  6. Switch on all load-break switches and circuit breakers ( > Recommissioning the Inverter).
Checking the Function
Cleaning the Fans