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6.17 LED Display

6.17.1 Method to turn off the LED

FUNCTIONS

6.17 LED Display

The LEDs on the front of the CPU module show the CPU module operation status.

Remark

Refer to the following manual for details of the LED indications.

QSCPU User's Manual (Hardware Design, Maintenance and Inspection)

6.17.1 Method to turn off the LED

The LED that is on can be turned off by the following operation. (Except for the

reset operation.)

: Valid : Invalid

* 1 : Special relay and special register contents

SM50•••When switch from OFF to ON, the error is canceled for the error code stored

in the SD50.

SD50•••The error code for the error to be canceled is stored.

Refer to the following manual for the error codes.

QSCPU User's Manual (Hardware Design/Maintenance and Inspection)

Diagram 6.31 LED on CPU module front

Table6.19 LED turning off method

Method to Turn LED Off

Applicable LED

ERR. USER BAT. BOOT

After the cause of error is resolved, cancel the error by

operating the special relay SM50 and special register

SD50. (Only for the operation continue errors.)

QS001CPU

TEST

USER

BAT.

ALIVE

RUN

ERR.

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