Mitsubishi MELSEC Q Series Programming Manual page 939

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:-
1720
• Individual Information:-
■Diagnostic Timing
• At power-ON/At reset/When an END instruction
executed
[SYSTEM RST ERR.]
An error was detected in the system bus.
■Collateral information
• Common Information:-
1730
• Individual Information:-
■Diagnostic Timing
• At power-ON/At reset
Corrective Action
• Change the battery.
• Engage the battery connector when a program
memory, standard RAM, or the back-up power
function is used.
• Check the lead connector of the CPU module
for looseness. Firmly engage the connector if it
is loose.
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, or END cover. (Please
consult your local Mitsubishi representative,
explaining a detailed description of the problem.)
• Replace the END cover.
• Reset the CPU module and run it again. If the
same error code is displayed again, the cause is
a failure of the intelligent function module, CPU
module, or END cover. (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
12-19
1
2
3
12
6
6
7
8