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CHAPTER 13 MAINTENANCE AND INSPECTION
13
13.3 Replacement Procedure of the Battery
13.3.1 Replacement procedure of the CPU module battery
*2 For the module mounting position, refer to the following.
Page 60, Section 4.1.2
*3 Clamp the Q8BAT connection cable. If not being clamped, the Q8BAT connection cover, connector, and cable, may be
damaged by a loose cable connection, shifting, or pulling due to carelessness, etc.
*4 Secure 10mm or more as the minimum cable bend radius.
If it is less than 10mm, malfunction may occur due to characteristic deterioration, open cable or the like.
Completed
Bit 0 is on.
ON
Bit 0 is OFF.
OFF
Failure of Q8BAT
Fix the Q8BAT connection cable to
the control panel.
*3
Install the CPU module into the
base unit.
Monitor
SM51 to verify
on/off.
Monitor
SD52 to check if bit 0 is
ON.
(From previous page)
2)
1)
Install the Q8BAT connection cover
to the CPU module.
Install the Q8BAT to the control panel.
*2
(Fixing with a mounting screw or
fixing with the DIN rail are available.)
Connect the Q8BAT connection cable
to the Q8BAT.
Turn on the programmable controller
power supply.
Q8BAT connection cable
CPU module
Q8BAT connection cover
Q8BAT
Control panel
Q8BAT
connection cable
Q8BAT
R (bending radius)
*4
10mm or more
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