ABB AC 800M Manual page 194

Internal Battery
To exchange the internal battery:
1.
2.
Insert a serviceable battery and check that battery polarity and orientation are
correct, according to the marking on the housing.
3.
4.
5.
Figure 64. Internal Battery Location – here shown with PM860
194
Using a blade screwdriver, release the captive screw from the PM8xx and
remove the right-hand cover.
Identify and remove the internal battery.
When power is re-established, ensure that the B(attery) LED is illuminated
Replace the PM8xx right-hand cover and tighten the screw.
Dispose of the run-down Lithium battery in an approved manner.
PM860
F
R
P
B
INIT
Tx Tx Tx Tx
Rx Rx Rx Rx
CN1 CN2 COM3 COM4
Section 5 Maintenance
Internal
battery
+
–
3BSE036351-510 A