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9-15
Chapter 9. MAINTENANCE & TROUBLESHOOTING
■
Replacement procedure
Handling Precautions
•
Replace with the lithium battery set (model No.: 81446431-001).
The lithium battery set can be ordered from Azbil Corporation.
•
When removing or mounting the RAM board or battery con-
nectors, do not use metallic tools. Doing so might short-circuit
electrical circuits.
•
While the battery is removed for battery replacement, the capaci-
tor on the RAM board backs up the contents of memory.
As this capacitor is charged, make sure that the controller is left
ON for at least 1 h before replacing the battery. Insert the new
battery on the RAM board within 24 h of turning the controller
OFF.
When the BAT LED starts blinking, follow the procedure below to
replace the battery.
(1) Leave the controller turned ON for at least 1 h.
(2) Turn the power OFF.
(3) Remove the key cover from the console, and fully loosen the
lock screw under
with a Phillips screwdriver.
>> The body comes out towards you.
(4) Before handling components inside the controller, touch a
grounded metal object to remove any static electricity from your
body.
LOADER
ENT
AT
FUNC
A/M
PARA
CLR
SEG
PROG
PROG RUN/HOLD
T5
T4
T3
T2
OT3
OT2
OT1
AT
EV3
EV2
EV1
PROFILE
BAT
OUT
CH2
CH1
CYC
TM
SP
PV
T1
MAN
PRG
HLD
RUN
DISP
Key cover
Lock screw
Comes out towards you.