Insulation Fault; Manual Shutdown - Ingeteam Ingecon Sun 250 TL Installation Manual

Installation manual

8.4.6. Insulation fault

Alarm 0400h is related to an insulation fault and can be one of two types:
• External to the unit. This is the first thing you should check.
• Internal to the unit.
External to the unit
To check whether the insulation fault is external to the unit,
see whether the Rpv+ and Rpv- impedances are displayed on
the display screen (selecting the fifth screen from the monitor-
ing menu). Given the insulation fault, one or both will be 0 or
a low figure.
Disconnect the power and open the DC breaker. If the Rpv+
and Rpv- impedances cease to be invalid, the fault is in the
photovoltaic field. If one of them is balancing out and gives an
intermediate reading, the inverter is triggering the insulation
fault.
Inspect the installation.
Internal to the unit.
If the insulation fault is caused by the unit, you must cut the DC power
supply and wait 10 minutes before opening the inverter for the first
time. First, ensure that the 64-way ribbon cable on the AAP0019 con-
trol board is correctly inserted into the J1 intake board.
If the fault is not as specified earlier, it will be necessary to look for it
in the DC and/or AC part of the unit.
In the DC part of the unit, you will need to check the arresters and wir-
ing. Using a multimeter, check that the resistance and ground capaci-
tance of each pole of the DC battery bus is the same.
In the AC part of the inverter, check that the resistance of each of the inverter's outputs to ground are around MOhm.
Check also that the Q2x filter or the wiring of the unit's fans aren't producing the earth fault. To do so, open Q2x to
separate circuits. In the filter is causing the ground fault you will need to check the wiring. If the fans are causing the
ground fault, you will need to disconnect terminals XVENT1.1 and XVENT1.2.

8.4.7. Manual shutdown

Code Alarm
0100H Manual shutdown
AAV2000IKI01
Reason for shutdown
Manual shutdown
Switching harmonics filtering
Xventi.2
Xventi.1
Description
Manual shutdown with the emergency stop button via
display or communications.
Ingeteam Energy, S.A.
venti1
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