Instructions

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13. PROTECTIVE MEASURES
The power unit has several integrated automatic protective measures that protect the power unit from
damage. The activated protective measures are displayed with letter codes and the DC output is
switched off for safety reasons at the same time.
When a protective measures is active, the consumer must be switched off and
disconnected from the power unit immediately.
To reactivate the output, switch off the power unit. Wait until all displays have gone out. Switch on
the power unit again. The power unit should work normally again. Where this is not the case, please
contact our customer service.
The following displays are possible:
Over-voltage Protection
• A higher external voltage than provided by the power unit was
determined at the DC output. The output is switched off.
• The current levels for switching off are listed in the technical data.
Overheating Protection
• The integrated temperature sensor determined that the system
temperature is too high. To prevent overheating, the output is
switched off.
• Turn off the power unit and let it cool down for at least 30 minutes.
After switching it on, check if the fan or venitlation apertures are
blocked. During the start-up self-test stage, the fan must start up
audibly. Where this is not the case, please contact our customer
service.
Overload Protection
• In case of overload at the DC output, the power limitation is usually
switched on. If this is not the case, the second protective function
becomes active.
• Switch off the power unit at once when this warning message
appears and check the connection data of the consumer. Remove
the consumer from the power unit’s DC output.
• Switch on the power unit again and check its function. If the error
message remains on, please contact our customer service.