Chapter 5: Preventative Maintenance 5-3
Annual Maintenance
Check the PLC battery
The PLC backup battery saves the PLC program in case of any power failure. The battery used in the LNS PCD2 is a non-
rechargeable 3VDC Lithium/ CD2032 battery. Over time, the battery will slowly discharge and an alarm message will appear on the
remote control station (
Low PLC Battery Alarm). The following chart shows the average life expectancy of the battery:
Use of Automation
Avg Life
Expectancy:
25°C
Avg Life
Expectancy:
55°C
100% off 0% on 3 years 6 months
0% off 100% on 5 years 4 years
30% off 70% on 4 years 1 year
Verify the alignment of the bar feeder
Check alignment of bar feeder to lathe spindle to make sure neither have shifted.
QUICK SIX
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