494
Replacing User-serviceable Parts
Section 10-2
Procedure
1,2,3...
1.
Turn OFF the power to the CPU Unit.
or
If the CPU Unit has not been ON, turn it ON for at least five minutes and
then turn it OFF.
Note
If power is not turned ON for at least five minutes before replacing the
battery, the capacitor that backs up memory when the battery is re-
moved will not be fully charged and memory may be lost before the
new battery is inserted.
2.
Open the compartment on the CPU Unit and carefully draw out the battery.
3.
Remove the battery connector.
4.
Connect the new battery, place it into the compartment, and close the cov-
er.
CPU Units with 14 or 20 I/O Points
CPU Units with 30 or 40 I/O Points
!WARNING
Never short-circuit the battery terminals; never charge the battery; never dis-
assemble the battery; and never heat or incinerate the battery. Doing any of
these may cause the battery to leak, burn, or rupturing resulting in injury, fire,
and possible loss of life or property. Also, never use a battery that has been
dropped on the floor or otherwise subject to shock. It may leak.
!Caution
You must complete this procedure within five minutes after turning OFF the
power to the CPU Unit to ensure memory backup. If the procedure is not com-
pleted within 5 minutes, data may be lost.
!Caution
UL standards require that batteries be replaced by experienced technicians.
Always place an experienced technician in charge or battery replacement.
Содержание CP1L - 12-2007
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Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 428: ...395 Clock Section 6 9...
Страница 429: ...396 Clock Section 6 9...
Страница 523: ...488 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...496 Replacing User serviceable Parts Section 10 2...
Страница 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...634 Index...
Страница 671: ...636 Revision History...