Mitsubishi Melsec-Q Series User Manual page 370

Error
Error Contents and Cause
Code
[MULTI-C.BUS ERR.]
The communication error with other CPU is
detected in the Multiple CPU high speed bus.
■Collateral information
1431
• Common Information:Module No. (CPU No.)
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
[MULTI-C.BUS ERR.]
The communication time out with other CPU is
detected in the Multiple CPU high speed bus.
■Collateral information
1432
• Common Information:Module No. (CPU No.)
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
1433
[MULTI-C.BUS ERR.]
The communication error with other CPU is
1434
detected in the Multiple CPU high speed bus.
■Collateral information
• Common Information:Module No. (CPU No.)
1435
• Individual Information:–
■Diagnostic Timing
• Always
1436
[MULTI-C.BUS ERR.]
The error of the Multiple CPU high speed main
base unit is detected. (The error of the Multiple
CPU high speed bus is detected.)
■Collateral information
• Common Information:–
• Individual Information:–
1437
■Diagnostic Timing
• At power ON/ At reset
[MULTI-C.BUS ERR.]
An error of the multiple CPU high speed main base
unit was detected. (An error of the multiple CPU
high speed bus was detected.)
1439 ■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
[AC/DC DOWN]
• A momentary power supply interruption has
occurred.
• The power supply went off.
1500 ■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• Always
*10 The Universal model QCPU except the Q00UJCPU, Q00UCPU, Q01UCPU, and Q02UCPU.
12 - 75
Corrective Action
• Take noise reduction measures.
• Check the main base unit mounting status of the
CPU module.
• Reset the CPU module and RUN it again. If the
same error is displayed again, the CPU module
has hardware failure. (Contact your local Mitsub-
ishi representative, explaining a detailed descrip-
tion of the problem.)
Reset the CPU module and RUN it again. If the
same error is displayed again, the CPU module has
hardware failure. (Contact your local Mitsubishi rep-
resentative, explaining a detailed description of the
problem.)
• Take noise reduction measures.
• Check the main base unit mounting status of the
CPU module.
• Reset the CPU module and RUN it again. If the
same error is displayed again, the CPU module
has hardware failure. (Contact your local Mitsub-
ishi representative, explaining a detailed descrip-
tion of the problem.)
Reset the CPU module and RUN it again. If the
same error is displayed again, the CPU module has
hardware failure. (Contact your local Mitsubishi rep-
resentative, explaining a detailed description of the
problem.)
• Take noise reduction measures.
• Check the main base unit mounting status of the
CPU module.
• Reset the CPU module and RUN it again. If the
same error is displayed again, the CPU module
has hardware failure. (Contact your local Mitsub-
ishi representative, explaining a detailed descrip-
tion of the problem.)
Reset the CPU module and RUN it again. If the
same error is displayed again, the CPU module has
hardware failure. (Contact your local Mitsubishi rep-
resentative, explaining a detailed description of the
problem.)
Check the power supply.
LED Status Corresponding
CPU Status CPU
RUN:
Off
ERR.:
*10
Flicker
QnU
CPU Status:
Stop
RUN:
On
ERR.:
Off QCPU
CPU Status:
Continue