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When the power supply is running, the user may send the Not run signal at any time. This will
stop the IGBT’s PWM signals but all internal parts will be kept powered. To restart operation,
send the Run signal.
NEVER connect or disconnect the cables while the power supply is in Ready
state.
4.5.3.
Emergency stop
The emergency stop button may be pressed at any time bringing the power supply to the
Alarm state. The emergency stop shall be only used when an emergency is detected. Please,
avoid to stop the equipment with the emergency button as a “normal practice” since it will
contribute to premature component aging. To lock the power supply and bring it to the Alarm
state, follow the Full stop procedure.
The emergency stop unpowers all the electromechanical devices in the cabinet so the power
supply is stopped by hardware assuring a full stop. The internal contactors will be open so no
power will be present at the DC link or at the ouput of the power supply. Only the control
boards, the embedded PC and the local touchscreen remain powered.
4.5.4.
Accidental shut down
When the power supply is suddenly disconnected from the mains special care must be taken
for restarting it. When the power supply is shut down with a charged DC link, some thermal
protections of the internal power supplies will prevent its start-up.
When an accidental shutdown happens, disconnect the mains and wait for at least 2 minutes
for powering the cabinet again.
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
1
Watchdog
Internal
microcontroller
error.
If this alarm persists, contact
Cinergia’s technical support.
2
Emergency
sequence
The emergency stop button
is activated or the EPO wire
in no longer connected.
Unpress the emergency stop
button or reconnect the EPO
wire.
3
Drivers
IGBTs saturation protection
has been activated. This
alarm is triggered when
Contact Cinergia for technical
support if this alarm persists.
Check the equipment under test
