Mitsubishi Electric Q26UD(E)HCPU User Manual page 318

Error
Error and cause
code
[RAM ERROR]
The program memory in the CPU module is
overwritten.
■Collateral information
1160
• Common information: Program error location
• Individual information: -
■Diagnostic timing
• Always
[RAM ERROR]
The data of the device memory built in the CPU
module is overwritten.
■Collateral information
1161
• Common information: Program error location
• Individual information: -
■Diagnostic timing
• Always
[RAM ERROR]
The program memory in the CPU module is
overwritten.
■Collateral information
• Common information: -
1163
• Individual information: -
■Diagnostic timing
• When instruction executed ("Always" for
QnUDVCPU)
[RAM ERROR]
The destruction of the data stored in the standard
RAM is detected.
■Collateral information
1164
• Common information: -
• Individual information: -
■Diagnostic timing
• When instruction executed
[RAM ERROR]
The internal memory in the CPU module is faulty.
■Collateral information
• Common information: -
1166
• Individual information: -
■Diagnostic timing
• Always
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
• Common information: -
1170
• Individual information: Failure information
■Diagnostic timing
• At power-on/At reset
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
• Common information: -
1171
• Individual information: Failure information
■Diagnostic timing
• Always
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
1172 • Common information: -
• Individual information: Failure information
■Diagnostic timing
• At power-on/At reset
316
Corrective action
• Take noise reduction measures.
• Format the program memory, write all files
to the CPU module, and reset the module
to run it again. If the same error code is
*5
displayed again, the cause is a hardware
failure of the CPU module. Please consult
your local Mitsubishi representative.
Take noise reduction measures. If the same
error code is displayed again, the cause is a
*5
hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
• Take noise reduction measures.
• For GX Works2, select "Transfer cache
memory to program memory" in the
Options window. For GX Developer, select
"Online change T/C setting value change
program memory transfer settings" in the
Options window.
• Format the program memory, write all files
to the CPU module, and reset the module
to run it again. If the same error code is
displayed again, the cause is a hardware
failure of the CPU module. Please consult
your local Mitsubishi representative.
Take noise reduction measures. If the same
error code is displayed again, the cause is a
hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
Take noise reduction measures. If the same
error code is displayed again, the cause is a
hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
Take noise reduction measures. If the same
error code is displayed again, the cause is a
hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
Take noise reduction measures. If the same
error code is displayed again, the cause is a
hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
Take noise reduction measures. If the same
error code is displayed again, the cause is a
hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
LED status, Corresponding
CPU status
RUN: Off
ERR.:Flashing
LCPU
CPU Status:Stop
RUN: Off
ERR.:Flashing
LCPU
CPU Status:Stop
RUN: Off
ERR.:Flashing
LCPU
CPU Status:Stop
QnU
RUN: Off
L26CPU
ERR.:Flashing
L26CPU-P
L26CPU-BT
CPU Status:Stop
L26CPU-PBT
RUN: Off
ERR.:Flashing Q50UDEHCPU,
Q100UDEHCPU
CPU Status:Stop
RUN: Off
ERR.:Flashing
LCPU
CPU Status:Stop
RUN: Off
ERR.:Flashing
LCPU
CPU Status:Stop
RUN: Off
ERR.:Flashing
LCPU
CPU Status:Stop
CPU
QnU
QnU
QnU
*6