PAN-A
3-5
Chap
.3
Basic Oper
ation
1
Presetting the OVP trip point
• After presetting the OVP trip point, be sure to check
that the OVP function works at the preset voltage
(Procedure 4 to 6). For checking, it is necessary to
output an actual voltage. Therefore,
fi
rst check that
no load is connected, and proceed with the following
procedure.
1. Turn off the OUTPUT switch.
2. Turn on the POWER switch.
3. While presetting the PRESET OVP switch, turn the OVP
variable resistor with a Phillips-head screwdriver, and pre-
set to the over voltage against which the load is to be pro-
tected.
4. Turn the VOLTAGE control knob fully counter-clockwise.
5. Turn on the OUTPUT switch.
6. Gradually turn the VOLTAGE control knob clockwise, and
check that the "ALM" (alarm) LED lights up and the output
is shut down when the output voltage has reached the pre-
set OVP voltage.
7. Turn the VOLTAGE control knob fully counter-clockwise
again.
8. Turn off the OUTPUT switch.
9. Turn off the POWER switch. (175W, 350W only)
Now, the OVP trip point presetting is completed.
CAUTION
Summary of Contents for PAN 110-1.5A
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Page 44: ...2 12 PAN A...
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