Mitsubishi F940, Hardware Manual

Page: 91 / 112

F940GOT-SWD-E/LWD-E Maintenance 5.
5-3
5.2 Replacement of battery
When the battery voltage drops, the control devices for system information set by the screen cre-
ation software becomes ON. The control devices are interlocking with auxiliary relays in the PLC.
It is recommended to attach a lamp using the output of the PLC so that the ON/OFF status of the
7th bit can be monitored from the outside.
For the details of control devices, refer to the Operation Manual.
Example :When the FX-PCS-DU/WIN are used.
When the head No. of the control devices is set to M0.
M6: Battery voltage drop Becomes ON when the battery voltage drops.
This control device is used in a sequence program as follows.
Example :When the SW1D5C-GOTR-PACK are used.
When the system information of the write device is set D20.
D24 b3: Battery voltage drop Becomes ON when the battery voltage drops.
This control device is used in a sequence program as follows.
M6
Y
Indication outside PLC
Battery voltage drop
M8000
M23
Y
Indication outside PLC
Battery voltage drop
M0V D24 K1M20