6
- 32
6.7 Self-diagnostics Function
6.7.1 LED display for error
6
FUNCTIONS
6.7.1 LED display for error
When an error occurs, the LEDs on the front of the CPU module light up and flash.
(
6.7.2 Cancel the error
The CPU module can carry out the operations canceling errors in programs as long as the
error allows the program operations to continue.
The occurring continuation error can be checked by the bit which is turned "1" of SD81
(error factor). Error factor/continuation error corresponding to the bit number of SD81 is
shown in Table6.12.
(1) Error canceling procedure
Cancel an error with the following procedure.
1) Read out SD81 with GX Developer and check the cause of the current
continuation error occurring in the CPU module.
2) Eliminate the cause of the error.
3) Store the canceling error code in special register SD50.
4) Turn special relay SM50 OFF
ON.
5) Again read out SD81 with GX Developer and check that the bit corresponding
to the current continuation error canceled is OFF.
Table6.12 Error factor/error code corresponding to bit number of SD81
Bit number of SD81/error factor corresponding to
continuation error
Continuation error corresponding to bit number of
SD81
Bit number
Error factor
Error code
Error message
0
Instantaneous power failure
1500
AC/DC DOWN
1
Battery low
1600
BATTERY ERROR
2
Standard ROM write count excess
1610
EXCEED MAX FLASH ROM REWRIT.ERR.
3
Test mode continuous RUN tolerance
timeout
8100
TEST MODE TIME EXCEEDED
4
Scan timeout
5010
PROGRAM SCAN TIME OVER
5
Annunciator ON
9000
F**** (**** indicates the annunciator
number.)
6
Safety remote station detection error
8300
CC-LINK REMOTE DETECTION ERROR
7
Safety remote station product information
mismatch
8310
CC-LINK PRODUCT INFO. MISMATCH
8
Initial monitoring timeout error
Safety monitoring timeout
Error menitoring timeout error
8320
8321
8322
CC-LINK DATA RECEPTION TIMEOUT
9
Safety remote station command error
Safety remote station data split error
Safety remote station link ID error
Safety remote station running number error
Safety remote station reception data error
8330
8331
8332
8333
8334
CC-LINK RECEIVED DATA ERROR
Содержание MELSEC QS Series
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