Table of Contents
Advertisement
Item
Cause
The input power voltage
waveform is defective.
1
The input power imped-
(Example, in the cases
that two transformers
2
are connected in series
or a variable auto-
transformer is con-
The input power fre-
quency remarkably
3
changes.
The motor selection
4
parameters #Ol and 102
are not correctly set.
The transistor module
is defective.
5
Check
at the input terminals Xl, X2,
and X3 of the amplifier using
an oscilloscope.
forms are as follows even in
the acceleration or decelera-
tion state.
tially lost:
It should be
100 us or less.
If the peak value drops:
It should be
2 to 3% or
less.
only when the motor speed
decelerates from a high
speed.
temporarily drops to 170 V
or less when the motor
decelerates.
at the input terminals Xl,
and X3 of the amplifier
using a frequency counter.
correctly set by referencing
Reference 1.2.2.
even after the equipment is
reset.
the amplifier and motor and
check that this alarm occurs
when only the amplifier is
operated.
(See Appendix l-2.1
Remedy
cable between the input
power supply and amplifier.
devices which generate
distorted waveforms and
install surge killers and
so force.
(For example, MATSUO made,
rating 200 VAC, DCRZ-
12003-5041, etc.)
with an other one whose
power impedance is low.
power supply and amplifier.
the related controls so
that it is in the specifica-
tion range.
meters.
(See Reference 1.2.3.)
unit of the amplifier with
a new one.
Continued on the next page.
Hide quick links:
Advertisement
Table of Contents
