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EN
SUNSYS PCS2 Power Conversion System and Storage from 33 to 200 kVA - Ref.: IOMSUNPCXX04-EN 01
System warnings
Warning
Cause
Remedy
W44
(1)
Module 3 on Alarm
Module 3 stopped by alarm.
Check Module 3.
Unit warnings
Warning
Cause
Remedy
W65
Unit in Derating
The unit is reducing the power
supplied/ drawn by the network.
Check the other alarms and/or visual
warnings.
W69
AC input network outside
frequency range
Input network is missing or insufficient
(voltage and/or frequency values
incorrect with reference to the infor-
mation provided in the technical data
table).
Check for the disconnection of
protective devices upstream of the
unit.
Check the applied voltage and
frequency comply with the values set
on the HMI.
W70
System alarms
Alarms
Cause
Remedy
A01
(3)
Switch-off due to external
command
The PCS is switched off due to an
external instant switch-off command.
Check if the external contact is
properly connected to ADC card. A
manual reset could be needed.
A05
(3)
SPD AC triggered
AC overvoltage.
Check and replace if necessary.
A06
(3)
SPD DC triggered
DC overvoltage.
Check and replace if necessary.
A07
Output contactor alarm
The output contactor status has not
complied with machine command.
Contact the support service.
A08
Transformer over-temper-
ature
Over-temperature of the trasformer.
Check the ventilation or air-condition-
ing system in the unit room.
A15
Incorrect system configura-
tion
System configuration wrong.
Check the configuration setting.
A22
Battery Overvoltage
Battery voltage too high.
Check the battery configuration.
A23
Battery Communication
fault
No battery communications.
Check the cable between PCS and
battery.
A24
General Battery Alarm
Other battery alarm are present.
Solve the specific battery Alarm.
A25
(2)
BES Thermal protection
fault
Over temperature inside the cabinet.
Check the thermal protection is
properly connected to the ADC Card
and verify temperature inside battery
cabinet.
A26
DC Connection Fault
Battery DC Contactor test failed.
Check battery DC Contactor is prop-
erly connected to the ADC Card.
A27
(2)
Battery Over Temperature
Battery temperature too high.
Reduce ambient temperature.
Unit alarms
Alarms
Cause
Remedy
A47
Modules with different
configuration
Different configuration for modules.
Check if the modules are identified by
the same model code for hardware
compatibility.
A68
Unit off due to over-
temperature
Over-temperature cause.
Reduce ambient temperature.
A69
Fan fault
Ventilation system breakdown.
Make sure the air inlets and outlets on
the front and rear of the unit are free
from obstructions.
A72
Unit locked
Internal cause.
Check the specific alarm.
A73
Input over-voltage
The DC input voltage has exceeded
900 V.
Check the connections.
1. Only Power Module N° (1,2,3) has flagged an alarm, but the system is still operational.
2. Shown only if lead-acid battery type is set.
3. Available as option.