Manual Energy Storage Inverter ESI-S
Troubleshooting guide 185
Refer to
for an overview of the possible messages and the
corresponding troubleshooting tips. Note that for troubleshooting it may be
necessary to remove the inverter right protective cover. Always remove power to
the units and allow time for the DC capacitors to discharge (min. 25 minutes)
before removing the inverter cover.
When the inverter right cover is removed and power is supplied again to the inverter, the
status of the control card LEDs can be monitored.
−
Main controller board LEDs:
(items 18 and 19) can be used to locate the main controller board LEDs
(items 18 and 19) explains the meaning of the LEDs and their status for
normal operation
WARNING: Only apply power to an inverter without protective cover if there is no
physical damage in the inverter panel. Failure to adhere to this guideline may result in
physical injury or death.
Provide the data provided by the ESI-Manager and the LED status information to the
ABB service provider when discussing a potential inverter problem.
11.4.2 Fault tracing
Table 56: Power supply problems
Symptom
Cause
What to do
No display on ESI-Manager.
All the indicator LEDs on
the electronic cards (LEDs)
remain OFF.
The inverter
(auxiliaries) is/ (are)
not energized or no
power supplied to the
inverter.
−
Check if the protection (fuses,
disconnector …) feeding the
inverter are OK.
−
Check if the auxiliary fuse box is
closed and the fuses are OK.
−
Check the mains and auxiliary
supply voltages.
No display on ESI-Manager.
All the indicator LEDs on
the electronic cards (LEDs)
are functioning properly.
The auxiliary
transformer is not set
according to the
network voltage.
−
Check the selection of the tap on
the auxiliary transformer.
−
Check the supply voltage to see that
it is within the tolerance range of
the nominal inverter settings.
After applying auxiliary
power to the system, the
ESI-Manager shows the
message ‘Initializing
communication. Please
wait… none of the LEDs of
the main controller board is
functioning.
The 24 Vdc power
supply feeding the
controller board has
failed or the cabling
between the power
supply and main
controller is loose or
main controller board
faulty.
−
Check the 24 V power supply
feeding the control boards.
−
Check the feeding cable between
the main power and the 24 V power
supply.
−
Check the feeding cable between
the control boards and the 24 V
power supply.
