3-6 Basic Operation PAS SERIES
3.2.3 Setting the OCP (Overcurrent Protection) Trip
Point
The OCP function protects a load from unexpectedly high current.
When OCP is activated, "ALM" on the display lights, and the OUT-
PUT is turned off or the POWER switch is tripped. (Selectable range:
10 % to 110 % of the rated output current)
For details on setting whether to turn off the OUTPUT or trip the
POWER switch when OCP is activated, see "POWER switch trip
when the protection circuit is activated (DEGIT H)" in "3.2.4 Unit
Configuration (CONFIG)".
If the POWER switch is set to trip when the protection circuit is acti-
vated in CONFIG, the illumination of "ALM" and the ALARM signal
output is held for approximately 0.5 s.
To release the alarm when the power switch is not set to trip when the
protection circuit is activated in CONFIG, turn off the POWER
switch once.
• The OCP trip point is factory-preset to approximately 110 %
of the rated output current of the unit. When using the unit,
set an appropriate OCP trip point for the load.
Setting the OCP trip point
1. Turn on the POWER switch.
2. Check that the OUTPUT OFF is illuminated.
3. Pres
s the OVP switch while pressing the SHIFT switch.
The voltage display shows "OCP," and the current display shows
the preset value.
4. Press the CURRENT switch to select Coarse or Fine (preset digit).
You can also switch between Coarse and Fine by pressing the dial.
(The digit that is displayed brightly is the digit that you are set-
ting. The Coarse and Fine digits vary depending on the model.)
5. Turn the dial to set the OCP trip point.
We are done setting the OCP trip point.
You can set or confirm the OCP trip point even when OUTPUT is
tur
ned
on. In this case, if the OCP trip point voltage is set lower than
the preset output current, OCP is activated and the OUTPUT turns off
or the POWER switch trips.
NOTE
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