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No. Name Application
1) Base unit installation hole Pear-shaped hole for installing the unit on a panel such as a control panel. (For M4 screw)
2) Cover
Protective cover for extension cable connector. Remove this cover when connecting an
extension base unit.
3) Extension cable connector
Connector for transferring signals to or from the extension base unit. Connect an extension
cable.
4) POWER LED Power indicator LED for 5VDC. Turns on in green during normal output of 5VDC.
5) RUN LED
Indicates the operating status of the CPU module.
On: During operation with the RUN/STOP/RESET switch set to "RUN"
Off: During stop with the RUN/STOP/RESET switch set to "STOP"
When the error that stops operation is detected
Flash:
When parameters/program is written during STOP and the RUN/STOP/RESET switch is
moved from "STOP" to "RUN".
To turn on the RUN LED after writing the program, perform the following operations.
• Set the RUN/STOP/RESET switch from "STOP" to "RUN" to "STOP" to "RUN".
• Perform reset with the RUN/STOP/RESET switch. ( Page 182, Section 6.4.1)
• Power on the programmable controller again.
To turn on the RUN LED after writing the parameters, perform the following operations.
• Perform reset with the RUN/STOP/RESET switch.
• Power on the programmable controller again.
(If the RUN/STOP/RESET switch is set from "RUN" to "STOP" to "RUN" after
changing the parameter values, the new values are not reflected on the parameters
related to the intelligent function module, such as the network parameters.)
6) ERR. LED
On: When the self-diagnostic error that will not stop operation is detected.
• When continuation of operation at error detection is set in the parameter.
• When the annunciator (F) is turned on by the SET/OUT instruction.
• When battery low occurs.
Off: Normal
Flash:
When the error that stops operation is detected.
When reset operation is performed with the RUN/STOP/RESET switch.
7) Module connector
Connector used for mounting an I/O module or intelligent function module.
(To the connector of the spare space where no module is mounted, fit the accessory connector
cover or the blank cover module (QG60) to prevent dust from entering.)
8) DIN rail adaptor mounting holes Holes for mounting a DIN rail adaptor.
9) FG terminal Ground terminal connected with the shield pattern of the printed circuit board.
10) LG terminal Power filter ground having a half potential of the input voltage.
11) Power input terminals Power input terminals for connection of a 100VAC to 200VAC power supply.
12) Battery
Backup battery for use of the program memory, standard RAM, clock function and backup
power time function.
13) Battery fixing hook Hook for holding the battery.
14) Battery connector pin
For connection of the battery lead wires.
(Lead wires are disconnected from the connector when shipping to prevent the battery from
consuming.)
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