(15) Alarm
No.33(OV)
OVerVOltage
[The voltage in the converter circuit is
checked and if it exceeds 400 V, this alarm
occurs.)
Item
Cause Check
Remedy
The input power voltage
0
In the same manner as the
0
See the alarm
No.24/No.25/
waveform is abnormal.
alarm No.24, No.25, and
No.32.
No.32, check the waveform.
0
Increase the power capacity.
0
Thicken the size of the
cable between the input
1
power supply and the ampli-
fier.
0
Improve other components
which generate distorted
waves by installing surge
killers and so forth.
The input power
imped-
0
In the same manner as the
0
See the alarm
No.24/No.25/
ante
is high. alarm
No.24/NoW25/No.32,
No.32.
check the input power.
0
Replase the power supply
with that whose impedance
2
is low.
o
Tighten the screws of the
cable connections between
the input power and ampli-
fier.
An instantaneous power
o
In the same manner as the
o
See the alarm
No.lO(UV).
failure occurs in the
alarm
No.lO(LJV),
check the
o
Check the cause of the
3
input voltage or the input power.
voltage drops when the
instantaneous power failure
motor decelerates.
or voltage drop and improve
the power condition.
The printed circuit
0
Replace the SF-CA card with
o
Replace the printed circuit
4
board SF-CA card is
a new one and check that the board SF-CA card with a
defective.
equipment correctly works.
new one.
(See Section 2.4.4.)
The main circuit unit
0
Check the regenerative
o
Replace the amplifier main
is defective.
transistor module by
refer-
circuit unit with a new
5
encing
Section 2.5.
one.
(Note) See Section 2.7.
-
34
-
To Next Page
Loading...