Kikusui PWX750ML, Руководство пользователя

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32
PWX
Protection Functions and Alarms
Overvoltage protection (OVP), overvoltage protection 2 (OVP2),
and overcurrent protection (OCP)
The overvoltage protection (OVP) function is activated under the following conditions.
• When the output terminal voltage exceeds the set voltage (OVP trip point).
• When the load or the PWX750ML is malfunctioning.
p.30
The overvoltage protection 2 (OVP2) function is activated under the following conditions.
• When the output terminal voltage exceeds 120 % of the rated output voltage (when a
voltage is being applied from an external source).
• When the load or the PWX750ML is malfunctioning.
If OVP2 is activated, turn the POWER switch off and on.
The overcurrent protection function (OCP) is activated under the following conditions.
• When the output current exceeds the set current (OCP trip point).
• When the load or the PWX750ML is malfunctioning.
Set the OVP and OCP trip points to appropriate values. Immediately after you purchase the
PWX750ML or immediately after a load is changed, you have to set the OVP and OCP trip
points to values that are appropriate for the load.
The OVP2 trip point is fixed to 120 % of the rated output voltage.

Setting the OVP and OCP trip points and the detection time of OCP activation
The PWX750ML OVP operates according to the output terminal voltage. If you want to acti-
vate the protection function according to the voltage across the load, take the voltage drop in
the load cable into consideration when you set the OVP trip point.
p.31, p.42
You can use the CONFIG settings to limit the set OVP (CF15) and the set OCP (CF14).
p.42
You can use the CONFIG settings to set the detection time of the OCP activation (CF13)
1
Press OCP•OVP.
The OCP•OVP key lights, and the OVP trip point and OCP trip point are displayed in
the display area.
2
While viewing the panel display, turn the VOLTAGE knob to set the OVP
trip point or the CURRENT knob to set the OCP trip point.
OVP setting range:8.00 V to 89.60 V
OCP setting range:2.80 A to 31.36 A
3
Press OCP•OVP twice to finalize the settings.
The OCP•OVP key turns off, and the PWX750ML returns to the measured value dis-
play
See
Lit
Alarm when OVP2 has
been activated
See
See
Lit
OCP trip point OVP trip point
OVP and OCP trip point
displays