Chapter 3 Front-Panel Operation
Programming Overcurrent Protection
34
Programming Overcurrent Protection
Overcurrent protection guards the lo ad agai ns t output currents that reach a
specified value greater than the programmed protection level. It is
accomplis hed by programm ing 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 select ed (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 m enu 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 mess age after pressing the key.
LEVEL 22.0 A
(E3633A)
LEVEL 7.5 A
(E3634A)
OCP ON
Power
Output
On/Off
Over
Current
Over
Current
Over
Current
*For HP E3633A Model **For HP E3634A Model
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