Kikusui PLZ-U Series Operation Manual

arms
When a protection
function trips and an alarm
is activated, the
ALM indicator of
the
corresponding channel illuminates. At the same time,
ALARM STATUS (pin
16)
of
FRAME CONT
connector 1 on the rear panel
turns on (open collector output).
There are
two
types of
protection functions: those that allow you to set
the trip point
and those with a fixed trip
point. In addition, for the OCR and the OPP,
you can
specify whether to turn off or
limit the load when such conditions are detected.
•
For the operation
of the protection
function in each operation mode,
see appen-
dix A.2, “Basic
Operation Modes.”
4.4.1 Protection Function
Undervoltage protection
(UVP)
The protection trips when the
voltage falls below the specified voltage when the
load is turned on. At this
point, the load is turned off. The undervoltage protection
can be
disabled (OFF).
•
For
a description of setting
the undervoltage value, see section
4.4.3,
“Setting
the Trip Points.”
Overcurrent
protection (OOP)
Overcun'ent is detected on the
smaller of the two values, the specified
overcurrent
value or 1 10
% of the rated current of
each range. The overcurrent value can be set
in
the
range of 0 % to 110 % of
the rated current of the H range.
Through
configuration, you can select
whether to turn off the load or limit
the cur-
rent when the protection trips.
When current limit is selected, the alarm is
cleared
when the
current falls below the trip
point.
•
For
a description of setting the
overcurrent value, see section
4.4.3,
“Setting
the
Trip Points.”
•
For a description of
configuration settings, see section
5.9,
“Configuration
Set-
tings.”
Overpower
protection (OPP)
Overpower
is detected on the
smaller of the
two values, the specified
overpower
value or 1
10
% of the rated power
of each range. The
overpower
value can be set in
the range of 0 % to 1 10 % of the
rated power of the
H range.
Through configuration, you can
select whether to turn
off the load or limit the
power
when the
protection trips.
When power limit is selected,
the alarm is cleared
when
the voltage falls
below the trip point.
•
For a
description of setting the
overpower value, see section
4.4.3,
“Setting the
Trip Points.”
•
For a
description of configuration settings, see section
5.9,
“Configuration Set-
tings.”
PLZ-U
Basic Operation
4-7

Kikusui PLZ-U Series Specifications

General

Brand	Kikusui
Model	PLZ-U Series
Category	Control Unit
Language	English