6 Protection Faults
6.1 OVP: Over Voltage Protection
This unit has a built-in over voltage protection feature. In the event the output voltage exceeds
the set OUP voltage value (see the specified range from specifications table), the protection will
be triggered and the output power will be turned off and the OUP warning appears as below.
To reset the warning:
1. Remove the connection to the load and press the Output ON/OFF key.
2. Reconnect the load and normal operation should be resumed. If this problem persists,
please consult with BK Precision.
6.2 OTP: Over Temperature Protection
There is a temperature sensor inside the unit to prevent the power supply from getting too hot.
At OTP, there is no output and the following warning will appear on the LED display.
When you get this warning, switch off the unit and disconnect the load.
Check the load and output setting. Allow the unit to cool down for at least 30 minutes.
Ensure no vents are blocked and check that there is enough clearance around the power
supply.
Listen for the self-test fan noise from the cooling fan when you turn on the unit again.
If you cannot hear this self-test fan noise on power-up, then the fan is at fault; do not use the
power supply and contact BK Precision.
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information@itm.com1.800.561.8187
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