Chapter 3 Front-Panel Operation
Programming Overcurrent Protection
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Programming Overcurrent Protection
Overcurrent protection guards the load against output currents that reach a specified
value greater than the programmed protection level. It is accomplished by
programming the output current to zero.
The following steps show how to set the overcurrent protection trip level, how to
check OCP operation and how to clear overcurrent condition.
• Front-panel operation:
Setting the OCP Level and Enable the OCP Circuit
1 Turn on the power supply.
The power supply will go into the power-on / reset state; the output is disabled (the
OFF annunciator turns on); the 8V/20A* or 25V/7A** range is selected (the 8V* or
25V** annunciator turns on); and the knob is selected for voltage control.
2 Enable the output.
The OFF annunciator turns off and the display will go to the meter mode.
3 Enter the OCP menu and set the trip level.
You will see the above message on the display when you enter the OCP menu. Adjust
the knob for the desired OCP trip level.
4 Enable the OCP circuit.
You will see the above message after pressing the key.
LEVEL 22.0 A (E3633A)
LEVEL 7.5 A (E3634A)
OCP ON
*For HP E3633A Model **For HP E3634A Model
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