14
PQSTORI INSTRUCTION MANUAL
To solve technical issues,
contact your ABB service provider at
be.bess.services@hitachi-powergrids.com.
As listed in the Table 6 and 7 there are 5 different
trip modes in the case of an error.
1. Continue
2. Disconnect from grid
3. Inverter trips/ reset required
4. Inverter trips after multiple tries/ reset
required
5. Inverter trips/ no reset required
For the errors identified as causing “Disconnec-
tion from grid”, the PQstorI islanding dry contact
will be driven HIGH for a preset amount of time
(default is 6 sec). This will cause the main BESS
breaker to OPEN. When the error has cleared, the
PQstorI will be in the position to power-up again
once the main breaker has closed. This requires
that the PQstorI has had “auto-restart” enabled.
In the case of a multiple module installations, due
to the fact that the islanding dry contact is active
high, it is required to connect all islanding dry
contacts terminals in parallel.
For the errors identified as causing “Inverter
trips/ no reset required”, the emergency stop
trips the Inverter but does not require a reset.
—
Table 7: Faults reported by the microcontroller
Name Description Action
CAN bus off CAN is in Bus Off mode Continue
Ctrl over temperature Over-temperature in the main controller board Inverter trips/ reset required
Real time clock
problem
Date or time information is corrupted Continue
No more unit on CAN
while it did before
Continue
Emergency stop External protection triggered an emergency stop
Disconnect from grid
Preload time-out Not existing any more Inverter trips/ reset required
Power supply fault Occurs each time the control board is de-energized or if for
internal reason the board is not energized properly
Inverter trips/ reset required
Internal uC fault Internal system error Inverter trips/ reset required
Internal system error Inverter trips/ reset required
DSP timeout
a start/stop request command was sent to it
Inverter trips/ reset required
Heart beat timeout AIP has stopped upon receiving no heartbeat update for
be enabled as a heartbeat signal is first written by an external
Disconnect from grid
Corrupted uC code Internal system error Inverter trips/ reset required
Corrupted DSP code Internal system error Inverter trips/ reset required
Different firmware Different firmwares between units connected in parallel Inverter trips/ reset required
DSP watchdog Internal system error Inverter trips/ reset required
SPI time-out Internal system error Inverter trips/ reset required
Several units same ID Two or more modules connected in parallel have
the same DIP switch address
Inverter trips/ reset required
An emergency stop can be the result of either:
A physical action of pressing an E-stop button
Error identified by the NS protection relay
Other safety related functions
(as required as part of the installation)
This will trip the inverters until the error has been
cleared or E-Stop has been released. If “auto-re-
start” has been enabled, the system will start
producing power again. Otherwise the start com-
mand will need to be initiated. By default, the
“Auto-restart” function is disabled. It will need to
be enabled during commissioning.
Internal system errors are most likely due to
faulty hardware. Before replacing components,
please contact your ABB service provider
‘IGBT check cooling’ signals that the system
stopped because it over-heated. Check the cool-
ing fans and environmental conditions
(e.g. air conditioning system). After solving the
problem, acknowledge the fault and reset the
system to resume operation
Transient faults generally raise no problem for
the proper operation of the system. When a
fault becomes ‘critical’, action must be taken
If several grid events occur without having the
inverter running normally for at least 30s, after 5
times of retries, no restart is possible until the
event is permanently cleared.
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