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CHAPTER 6 CPU MODULE
6
6.1 Part Names
6.1.1 Basic model QCPU
No. Name Application
1) Module fixing hook Hook used to fix the module to the base unit. (Single-motion installation)
2) 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
set from "STOP" to "RUN".
To turn on the RUN LED after writing the program, perform the following operations.
• Move 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.)
3) 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.
4) Serial number display Shows the serial number printed on the rating plate.
5) Battery
Backup battery for use of the program memory, standard RAM, and backup power time
function.
6) Battery fixing hook Hook for holding the battery.
7) 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.)
8)
RUN/STOP/RESET switch
*2
RUN: Executes sequence program operation.
STOP: Stops sequence program operation.
RESET:
Performs hardware reset, operation error reset, operation initialization or like.
( Page 182, Section 6.4.1)
9)
RS-232 connector
*1
Connector for RS-232 connection
Can be connected by the RS-232 connection cable (QC30R2).
10) Module fixing screw hole Hole for the screw used to fix to the base unit. (M3 × 12 screw)
11) Module fixing projection Projection used to secure the module to the base unit.
12) Module mounting lever Lever used to mount the module to the base unit.
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