on the motors, and for noise, using a listen-
ing stick is recommended.
If any abnormality
is found, contact maintenance personnel imme-
diately.
(2) Motor contamination and impairment (Dai
or as required)
Check the motor exterior visually. If dirt
Y
or
damage should be observed, inspect the motor
by removing the machine cover. Refer to the
machine tool builder’s manual.
2.4 BATTERY
Make sure that ‘BAT”or ‘A/B” on the right-
low position of CRTscreen is not displayed.
If it is displayed, the battery must be
replaced within a month.
Whenreplacing, never remove the old battery
with power off, otherwise the data stored in
memoryare cleared.
Replacing Procedure
(1) Depress POWEROFFpushbutton to shut off
the power supply to the operator’s station.
(2) Open the frent door of the control. The
battery of the memory (printed circuit) board
can be seen on the CPUmodule which is mounted
on rear of the front door.
(3) Where the control is equipped with a door
interlock switch, pull it out by hand. The
power can be turned on, with the door open.
(4) Depress POWERONpushbutton.
(5) Check to see if lLED on memoryboard is
illuminated. Fig. 2.3 shows the arrangement
of LEDand the battery.
If illuminated,
replace the battery with new one.
Battery Type: JZNC-GBAO1
(6) With the power on, remove the old battery.
(7) Put the new bat tery in the holder and set
the connector.
See Fig. 2.4. Battery connec-
tion.
(8) With the power on, make sure that b] ink
display of CRTscreen or LED1goes off. IF
they are still illuminated, it is due to the
improper battery connection or defective
battery.
—
\
*\
A -1
,+
A \
L
I
Fig. 2.3 Arrangement of LEDand Battery
CORRECT
CORRECT
WRONG
Fig. 2.4 Battery Connection
–9-
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