Troubleshooting - VOLTCRAFT HPS-11530 Bedienungsanleitung

Troubleshooting

By purchasing the laboratory power unit, you have acquired a product that is reliable and operationally
safe.
Nevertheless, problems or errors may occur.
For this reason we want to describe how to troubleshoot potential malfunctions:
Always follow the safety instructions!
Error
The power unit cannot
be switched on.
Connected consumer devices
do not work.
The "REAR CONTROL" display
is lit The device can not be
operated via the rotary controls.
The "O P PFF" display is lit.
The output current is limited to 5 A,
although the current
settings are higher.
The "CC" LED is lit.
The "C.V." display is lit.
OVP
OtP
OLP
Regularly check the technical safety of the device e.g. for damaged housing etc.
Possible cause
Does the operating display light up on the power unit (2)?
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.
Remote control operation is active. Put the rear
"MODE" slider into the "Normal" position.
The DC output was switched off through the remote control
output (16). Release the connection between contacts 4 and 5.
The output is switched on again.
The front connection is limited to no more than 5 A. For higher
currents, connect the consumer to the rear
main output
Constant current operation
The preset current was exceeded. Check power consumption
on your consumer and increase the current limitation on your
power unit, if applicable.
Constant current operation
The power unit works normally. The output provides the con-
stant voltage set.
Over-voltage protection
See chapter "Protective Devices"
Over-temperature protection
See chapter "Protective devices"
Overload-protection
See chapter "Protective devices"
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