ABB REACT-3.6-TL Product Manual page 158

- Error code
- Error message Name of Alarm and Cause
- Warning
Low value of insulation resistance:
Before connecting to the grid the inverter measures the
insulation resistance of the PV generator compared
to ground. Should the measurement of the insulation
resistance be below 1Mohm, the inverter does not
connect to the grid and shows the "Riso Low" error. The
- E025*
causes may be:
- Riso Low
- Damaged PV panel(s).
- Yellow LED
- Junction box(es) of the panels not correctly sealed,
so as to permit infiltration by water and/or humidity;
*not visualised on
- Problems in connections between panels (not
display
perfectly fit);
- Poor quality of cable joints;
- Presence in the DC section of unsuitable or
damaged overvoltage surge arresters outside the
inverter (reduced ignition voltage compared to the
characteristics of the strings of the PV generator);
- Presence of humidity inside any junction box
- E026 Internal reference voltage outside of range:
Wrong measurement of reference voltage inside
- Vref Error
- Yellow LED inverter
Grid voltage outside of range:
- E027 Error in the internal measurement of grid voltage
- Error Meas V (set by law) to have a redundant measurement
- Yellow LED (2 measurements on the same parameter made by
two different circuits)
Grid frequency outside of range:
- E028 Error in the internal measurement of the grid
- Error Meas F frequency (imposed by regulations) to have a
- Yellow LED measurement redundancy (2 measurements on the
same parameter carried out by two different circuits).
- E029 Internal overvoltage on the measurement of the
- Mid Bulk OV "Mid bulk":
- Yellow LED Error inside the inverter (only triphase models)
High leakage current (DC side):
- Error on the internal measurement (performed when
- E030 the inverter is connected to the grid) of the DC side
- Error Meas Ileak (PV generator) leakage current with respect to ground
- Yellow LED (required by regulations) to have a measurement
redundancy (2 measurements of the same parameter
carried out by two independent circuits)
Output relay damaged:
- E031 Measurement of internal voltage on heads of the
- Error Read V output relay outside of range. There is too great a
- Yellow LED difference in voltage between the input and output of
the grid connection relay.
Imbalanced output currents:
- E032
Measurement of the unbalance in the output voltage
- Error Read I
(made across the three phases) outside of range (only
- Yellow LED
in three-phase models)
- E033
Low ambient temperature:
- UTH
Temperature outside the inverter below -25°C
- Yellow LED
- E034
"IGBT" circuitry not ready:
- Interlock fail
Error inside the inverter
- Yellow LED
- E035*
Inverter awaiting "remote ON" command:
- Remote Off
The inverter has been switched off remotely (remote
- Yellow LED
OFF) and remains in waiting state for the signal that
*not visualised on
will switch it on again (remote ON).
display
- 158 -
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Solution
• Measure the insulation resistance using a megohmmeter
positioned in the photovoltaic field (positive terminal short-
circuited at the negative pole) compared to ground. The
measurement is strongly influenced by the environmental
conditions, so must be made under the same conditions in
which the error occurred.
- If the value measured is lower than 1 megaohm, a
check must be carried out by a technician/installer on the
photovoltaic generator to identify and eliminate the problem.
- If the value measured is higher than 1 megaohm and the
error signal persists, contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
• Wait for the temperatures to which the inverter is exposed to
return to the operating range.
- If the problem persists, contact customer assistance. You
must remember to wait for the time necessary to allow the
inverter to warm up.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
• Switch the inverter back on remotely. If the unit does not
switch on, disable the remote on/off function and switch the
equipment off completely and then switch it on again.
- If the problem persists (once the Remote ON/OFF function
has been reactivated), contact customer assistance.
8 - Maintenance