GE AC Instalation and operation manual V10.docx
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4.5.5.
Alarms
There are different sources of alarm in the power supply. The following table describes them
and offers possible causes and solutions to the user.
Code Name
Cause
Solution
0
Watchdog
Internal microcontroller error.
If this alarm persists and is the only
alarm triggered, contact Cinergia’s
technical support.
1
Emergency
sequence
The emergency stop button is
activated or the EPO wire is no
longer connected.
Unpress the emergency stop
button or reconnect the EPO wire.
2
Drivers
IGBTs saturation protection
has been activated. This alarm
is triggered when there is a
sudden overcurrent in the
power supply output.
Contact Cinergia for technical
support if this alarm persists. Check
the equipment under test before
restarting the power supply.
3
Precharge timeout
Internal error caused by a low
voltage in mains.
Check the grid voltage.
4
Overload in
precharge
Internal alarm caused by a
shortcircuit. It may also be
triggered if there is not enough
time between the EPO release
and the enable signal.
Repeat the Enable action 5 seconds
after the EPO release.
Contact Cinergia for technical
support if this alarm persists.
5
Overvoltage in the
DC link
The DC link voltage has
exceeded its maximum value.
Reduce the output step transition
time. Contact Cinergia for technical
support if this alarm persists.
6
Undervoltage in the
DC link
Undervoltage in the DC link
caused by a fast output
transient.
Reduce the output step transition
time. Contact Cinergia for technical
support if this alarm persists.
7
AC overvoltage
The voltage in the emulated
grid is too high. Also in DC
indicates overvoltage.
Check the emulated grid voltage. It
can be triggered due to
connection/disconnection
load
transition.
8
AC overcurrent
The output current has
exceeded the configured
limitation.
Check the output load.
9
Heatsink
overtemperature
Overtemperature
in
the
heatsink.
Check if there is enough space
between the power supply and the
wall. There is insufficient air flow
inside the power supply. Check if
the fans are working correctly.
10
Room
overtemperature
Overtemperature in the room
Check that room temperature does
not exceed 50ºC.
11
Sensor offset
Error caused by transducers
malfunction
Turn off the equipment, wait one
minute, and turn it on again. This
alarm can occur when the power
supply is switched off accidentally
under load. Otherwise, contact
Cinergia for technical support.
12
PID Saturation
The PID controller is saturated
Reset the equipment. Contact
Cinergia for technical support if this
alarm persists.
13
Alarm in node
One of the two control boards
has an alarm.
Reset alarms.
