Mitsubishi MELSEC L Series User Manual page 148

Error
Error Contents and Cause
Code
*3
[BATTERY ERROR
• The battery voltage in the CPU module has
dropped below stipulated level.
• The lead connector of the CPU module battery
is not connected.
• The lead connector of the CPU module battery
1600
is not securely engaged.
■Collateral information
• Common Information: Drive Name
• Individual Information:-
■Diagnostic Timing
• Always
*3
[BATTERY ERROR
Voltage of the battery on memory card has
dropped below stipulated level.
■Collateral information
1601
• Common Information: Drive Name
• Individual Information:-
■Diagnostic Timing
• Always
[FLASH ROM ERROR]
The number of writing to flash ROM (standard
ROM and system securement area) exceeds
100,000 times.
(Number of writings > 100,000 times)
1610
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• When writing to ROM
[BUS TIMEOUT ERR.]
An error was detected on the system bus.
• Self-diagnosis error of the system bus
• Self-diagnosis error of the CPU module
1700
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• Always
[UNIT BUS ERROR]
• An error was detected on the system bus.
• An error was detected in the connected module.
■Collateral information
1710
• Common Information: Module No. (Slot No.)
• Individual Information:-
■Diagnostic Timing
• Always
[END COVER ERR.]
A failure was detected on the END cover.
■Collateral information
• Common information: Module No. (Block No.)
1720
• Individual Information:-
■Diagnostic Timing
• At power-ON/At reset/When an END instruction
executed
[SYSTEM RST ERR.]
• An extension cable is not securely connected.
• An error was detected in the system bus.
■Collateral information
1730
• Common information: Module No. (Block No.)
• Individual Information:-
■Diagnostic Timing
• At power-ON/At reset
146
]
• Change the battery.
• Engage the battery connector when a program
• Check the lead connector of the CPU module
]
Change the battery.
Change the CPU module.
Reset the CPU module and run it again. If the
same error code is displayed again, the cause is a
hardware failure of the CPU module, I/O module,
intelligent function module, END cover, branch
module, or extension module. (Please consult
your local Mitsubishi representative, explaining a
detailed description of the problem.)
• Disconnect the extension block.
• Reset the CPU module and run it again. If the
• Securely connect the connector part of an
• Replace the END cover.
• Reset the CPU module and run it again. If the
Corrective Action
memory, standard RAM, or the back-up power
function is used.
for looseness. Firmly engage the connector if it
is loose.
same error code is displayed again, the cause is
a hardware failure of the CPU module, I/O
module, intelligent function module, END cover,
branch module, or extension module. (Please
consult your local Mitsubishi representative,
explaining a detailed description of the
problem.)
extension cable to the module. (Insert the
connector until it clicks.)
same error code is displayed again, the cause is
a hardware failure of the CPU module, I/O
module, intelligent function module, END cover,
branch module, or extension module. (Please
consult your local Mitsubishi representative,
explaining a detailed description of the
problem.)
LED Status Corresponding
CPU Status CPU
QCPU
LCPU
RUN:
On
ERR.:
Off
CPU Status
Continue
Qn(H)
QnPH
QnPRH
*19
QnU
RUN:
On
ERR.:
QnU
On
LCPU
CPU Status:
Continue
RUN:
Off
ERR.:
Flicker LCPU
CPU Status:
Stop