2Operation and Features
68 Keysight E364xA User’s and Service Guide
Checking the OVP operation
To check the OVP operation, raise the output voltage to near the trip point. Then
very gradually increase the output by turning the knob until the OVP circuit trips.
This will cause the power supply output to drop to near zero, the OVP annunciator
to flash, and the CC annunciator to turn on. The OVP TRIPPED message also
appears on the display.
Clearing the overvoltage condition
When the OVP condition occurs, the OVP annunciator flashes. When it was
caused by an external voltage source such as a battery, disconnect it first. Clear
the overvoltage condition by adjusting the output voltage level or by adjusting
the OVP trip level.
The following steps show you how to clear the overvoltage condition and return to
the normal mode operation. In the following steps, the display will return to OVP
TRIPPED if you allow the display to time-out after about several seconds.
– By adjusting the output voltage level
1 Lower the output voltage level below the OVP trip point.
The OVP and Limit annunciators are flashing after is pressed.
2 Check that you lowered the voltage level below the OVP trip point.
The OVP trip point is displayed. Do not adjust the trip point at this step.
3 Select the OVP CLEAR mode by turning the knob.
4 Clear the overvoltage cond ition and exit this menu.
The OVP annunciator will not flash any more. The output will return to the
meter mode.
OVP ON
OVP CLEAR
DONE
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