Ingeteam Ingecon Sun 100, Руководство по установке, Страница: 63 / 72

AAS2000IKI01 63
Installation manual Ingeteam Power Technology, S.A.
9.4.6. Insulation fault
Alarm 0400h is related to an insulation fault and can be one of two types:
• External to the unit.
• 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 monitoring
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 photovol-
taic field. If one of them is balancing out and gives an interme-
diate reading, the inverter is triggering the insulation fault.
Inspect the installation.
Q2x/Q3x
R1x
R2x
R3x
L1x
Switching harmonics filtering
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.
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 wiring.
Using a multimeter, check that the resistance and ground capacitance of
each pole of the DC battery bus is the same.
J5
J6
C1
venti1
Xventi.2
Xventi.1
In the AC part of the inverter, check that the resistance of each of the inverter’s outputs to ground are in the MΩ
range. Check also that the Q3 filter or the wiring of the unit’s fans aren’t producing the earth fault. To do so, open Q3
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.
9.4.7. Manual shutdown
Code Alarm Reason for shutdown Description
1000H Manual shutdown Manual shutdown Manual shutdown with the emergency push
button via display or communications.