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other voltage sources at the output. If the power supply is operated as a current
source, please do not connect any other current sources at the output.
4.5.2.
Stop
Once the equipment is running (Run state) it may be stopped in three ways:
4.5.2.1.
Full stop
This type of stop is recommended if the electrical connections are to be modified or the power
supply will be stopped for a long time.
When the power supply is running, special care must be taken. It is strongly recommended to
follow the next steps:
1.
Send the Not enable signal to the power supply (
Run
Ready
Standby
)
2.
Press the emergency stop button (
Standby
Alarm
)
3.
Disconnect the output disconnector
4.
Wait at least 60 seconds
(time to get discharged the internal DC link capacitors)
5.
Disconnect the input thermal-magnetic circuit breaker
Before manipulating the cables in the cabinet terminals, please check the
voltages with a voltmeter to assure no voltage is present. The grid cable and
the load must be completely unpowered before connecting or disconnecting
the cables. The user must be sure that the input and output switches are both
in OFF position.
4.5.2.2.
Standby stop
This type of stop is recommended if the power supply will be stopped during some hours. The
DC link is discharged and therefore aging of the DC bus capacitors is prevented.
Send the Not enable signal to the power supply. If the user wants to lock the power supply in
order to avoid an accidental start-up, press the emergency stop button, and keep it pressed.
For restarting operation, release the emergency stop button and send the Reset signal. After
doing this, proceed as a standard start-up sending the Enable signal.
NEVER connect or disconnect the cables while the power supply in Standby
state.
4.5.2.3.
Ready
This type of stop is recommended if the power supply will be stopped for a short time. The DC
link is kept charged and the power supply is ready to run.
