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5.7.2 System Register Setting
Setting of the battery error alarm
In the system register default settings, “No. 4 Alarm Battery Error” is set to “Off”. When using the battery,
set system register No. 4 of the control unit so that the battery error alarm is turned on.
Setting procedure using FPWIN GR
1. Select “PLC Configuration” on the “Option” menu, and click on “Action on Error” tab.
2. Turn on “No. 4 Alarm Battery Error” check box.
PLC Configuration setting dialog box
Specifying the hold area
In order to use backup functions such as data registers, settings must be entered for system registers
Nos. 6 to 14.
For hold area setting using FPWIN GR, select “PLC Configuration” on the “Option” menu, and click on
“Hold/Non-hold1” and “Hold/Non-hold 2”.
Note:
•
The setting of the system registers Nos 6 to 14 is effective only when the backup battery is mounted.
•
Without the battery, use at the default settings. If changing the settings, the “Hold/Non-hold” operation
becomes unstable.
•
Without the settings, the data may be lost as the result of the battery shutoff.
5.7.3 Time for Replacement of Backup Battery
If system register “No.4 Alarm Battery Error” is set to “ON”, it informs about the proper time to
replace the backup battery.
1. Special internal relays R9005 and R9006 will go on if the battery voltage drops.
2. ERROR/ALARM LED will flash.
The battery remains effective for about a week after the alarm is issued, but in some cases the problem
is not detected immediately. The battery should be replaced as soon as possible, without turning off the
power supply.
Note) When replacing the battery, turn off the power after supplying the power more than 1 min., and
then fit the new battery within 2 min of removing the old one.
Содержание FP E Series
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