High leakage current / Check generator

What does 3601 mean?

A high leakage current is detected in the inverter and/or PV module circuit, indicating a ground fault, residual current, or an internal malfunction. The inverter immediately stops feed-in operation, but automatically attempts to reconnect once the condition is resolved.

• Ground fault in the PV system or PV modules.
• Elevated residual current in the electrical circuit.
• Internal malfunction within the inverter or PV modules.

Click steps to track your progress.

1. 1

   Disconnect the inverter from all voltage sources (see Section 9, page 67).

2. 2

   Install a suitable device for safe disconnection and short-circuiting of the PV modules.

3. 3

   Connect a measuring device for insulation resistance (with a DC input voltage range of 1000 V or higher).

4. 4

   Short-circuit the first PV string and set the test voltage as close as possible to the maximum system voltage of the PV modules (must not exceed it, refer to datasheet).

5. 5

   Measure the insulation resistance of the string. Repeat the measurement for all remaining strings in the same manner.

6. 6

   Reconnect only the PV strings to the inverter from which the ground fault has been eliminated, then recommission the inverter (see Section 7.3, page 55).