Kikusui PWX750ML, User Manual

Page: 34 / 110

34
PWX
Protection Functions and Alarms
Undervoltage limit (UVL)
This protection function is activated when you attempt to set the output voltage to a value that
is lower than the set undervoltage limit (the UVL trip point). In other words, it prevents you
from setting the output voltage to a value lower than the set limit. This function does not turn
the output off.
p.31, p.42
You can use the CONFIG settings to limit the set UVL (CF15).

Setting the UVL trip point
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
Press OCP•OVP again.
The present UVL trip point is displayed.
3
While viewing the panel display, turn the VOLTAGE knob to set the UVL
trip point.
UVL setting range: 0 V to 84 V
4
Press OCP•OVP to finalize the setting.
Overheat protection (OHP)
This protection function is activated when the PWX750ML’s internal temperature rises to an
abnormal level.
• When the PWX750ML is used in an environment outside its operating ambient tempera-
ture range (0 °C to +50 °C [32 °F to 122 °F])
• When the PWX750ML is used with its air inlet and exhaust port blocked.
• When the fan motor has stopped.
p.40
If you do not fix the problem that caused the OHP to be activated, OHP will be activated again
even if you restart the PWX750ML.
Fan failure protection (FAN)
This function is activated when the number of fan rotations drops to an abnormal level.
See
Display example of the
UVL setting
Lit
Alarm indication when
OHP has been activated
See
Lit
Alarm indication when fan failure
protection has been activated