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7-4
Maintenance
and Inspection
7.1.3 Lifetime and Replacement Interval of Backup Battery
Lifetime of backup battery
Lifetime of backup battery
Suggested replacement interval
3.3 years or more
5 years
(Note 1) The lifetime indicated above is the value when no power at all is supplied.
(Note 2) Note that the lifetime in actual use may be shorter than the indicated value depending on the use conditions.
(Note 3) Backup battery is consumed for the backup battery detection circuit, even while power is being supplied.
Lifetime while power is being supplied is approx. two times longer than the value when no power is supplied.
Detection of errors and replacement interval of backup battery
When voltage of the backup battery declines, the system relays (SR7 and SR8) are turned
on. As necessary, create a program for reporting the error to outside.
If the system register's "Report Battery Error" setting is turned valid, the CPU ERROR LED
on the CPU unit flashes.
Promptly replace the battery, though data are retained for about one week from the detection
of a backup battery error, even if no power at all is supplied.
NOTES
The retained memory data may become indefinite after one week has
passed with no power supplied, from the time when the system relays (SR7
and SR8) turned on or when the ERROR LED on the CPU unit flashed.
The system relays (SR7 and SR8) turn on when a backup battery error is
detected, regardless of settings in the CPU's configuration.
Regardless of time passed from detection of a backup battery error, supply
power to the CPU unit for at least 5 minutes before replacing the backup
battery.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
Содержание AFP7CPS31
Страница 1: ...Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 9: ...1 Overview Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 19: ...2 Names and Functions of Parts Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 23: ...3 I O Number Allocation Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 33: ...4 Installation and Wiring Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 46: ...4 14 Installation and Wiring Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 47: ...5 Operation Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 62: ...5 16 Operation Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 63: ...6 Troubleshooting Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 70: ...6 8 Troubleshooting Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 71: ...7 Maintenance and Inspection Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 76: ...7 6 Maintenance and Inspection Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
Страница 77: ...8 Specifications Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...