1 Troubleshooting
1.2 Checking method and countermeasures of trouble classifi-
cation A
1.2.1 When the amplifier is turned on at the first time, it
1
2
3
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4
5
6
The amplifier is
knocked and damaged
when the equipment is
operated or installed.
[tern
Cause
The external wiring
is incorrect or broken
The signal ON/OFF
sequence is incorrect.
The ground wiring is
not conducted.
The
ElPROM
number is
incorrect.
The switch and setting
pins are incorrectly
set.
l-
Check
Visually check there is an abnor-
mal portion on the amplifier.
Visually check the external wir-
ing.
Check that the indication lamp
LED 1 on the SF-PW card lights
(see Appendix
6(411.
Check the sequence among the NC
ready ON signal, spindle ampli-
fier CON1 ready signal
(SETl,
SETZ),
forward rotation signal,
reverse rotation signal, and
orientation signal taking care
of the following items.
DThe
NC ready ON signal and
spindle amplifier CON1 ready
signal
(SETl,
SET21
become
ready when both the signals are
turned on.
BIt
takes 1
set
or more until tht
command of the forward rotation
signal,
reverse rotation signal
or orientation signal is
received after the ready ON
state.
BWhen
both the forward rotation
signal and reverse rotation
signal are turned on at a time,
the motor does not rotate (it
becomes the DC exciting state).
BWhen
the forward rotation
signa
or reverse rotation signal is
inputted when the speed refere-
nce is 0,
the motor becomes the
DC exciting State.
BUnless
the forward rotation
signal,
reverse rotation signal
or orientation signal is input-
ted the motor is in the free
run state where the base
shut-off takes place.
Check the ground wirings of the
power,
amplifier, and motor and
shield ground wiring of the
detector command.
Check that the
E'PROM
number
conforms with the amplifier mode
name and motor type name.
Check the set positions of the
switches and setting pins by
comparing them with the attach-
ed setting pin list (Reference
1.11.
-13-
Remedy
D
Replace the broken wire
with a new one.
0
Change the signal sequence.'
D
Correctly connect the
ground wirings (see
Appendix
1).
o
Replace the incorrect
ElPROM
with a correct one.
o
Correctly set the switches
and setting pins.
Continued on the next page.
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