Voltcraft HPS-11530, 450W 1 Output Variable DC Power Supply, Switched Mode, Remote Control, Bench HPS-11530 Data Sheet

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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:



The power unit cannot 

Does the operating display light up on the power unit (2)?

be switched on.

Check the mains voltage (you may also want to check the
mains fuse in the device or the line circuit breaker).

Connected consumer devices 

Is the voltage set correctly?

do not work.

Is the polarity correct?
Check the technical data of the consumers.

The “REAR CONTROL” display 

Remote control operation is active. Put the rear

is lit The device can not be 

“MODE” slider into the “Normal” position.

operated via the rotary controls.

The “O P PFF” display is lit.

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 output current is limited to 5 A, 

The front connection is limited to no more than 5 A. For higher

although the current 

currents, connect the consumer to the rear

settings are higher.

main output

The “CC” LED is lit.

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.

The “C.V.” display is lit.

Constant current operation
The power unit works normally. The output provides the con-

stant voltage set.

OVP

Over-voltage protection
See chapter “Protective Devices”

OtP

Over-temperature protection
See chapter “Protective devices”

OLP

Overload-protection
See chapter “Protective devices”

Regularly check the technical safety of the device e.g. for damaged housing etc.