Troubleshooting - VOLTCRAFT VSP 1220 Bedienungsanleitung

Troubleshooting

By purchasing the laboratory power supply unit, you have acquired a product that is reliable and opera-
tionally safe.
Nevertheless, problems or errors may occur.
For this reason we want to describe how to troubleshoot potential malfunctions:
Always adhere to the safety instructions!
Error
The power supply cannot
be switched on.
Connected consumer devices
do not work.
The "OT" display is lit.
The "CC" display is lit.
The "CV" display is lit
Regularly check the technical safety of the device, e.g. for damaged housing etc.
Any other repair work must always be carried out by a specialist familiar with the
hazards involved and with the relevant regulations. Unauthorized modifications
or repairs to the device invalidate the warranty/guarantee. Fuses are replace-
ment parts and not covered by the warranty/guarantee.
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Possible cause
Does the operating display (2) light up on the power supply?
Check the mains voltage (you may also want to check the mains
fuse in the device or the line circuit breaker).
Is the voltage set correctly?
Is the polarity correct?
Check the technical data of the consumers.
The power supply is overloaded and overheated.
Leave the device on and cool down without load.
constant current mode
The preset current was exceeded.
Check power consumption on your consumer and increase the
current limitation on your power supply, if applicable.
Constant voltage mode
The power supply functions normally. The set, constant voltage
will be emitted at the output.