Mitsubishi Electric MELSEC-Q Series User Manual page 146

Error
Error
Code
Massage
(D9008)
60
61
"MAIN CPU
DOWN"
62
"BATTERY
ERROR"
70
(Checked
at power
on.)
Table 6.1 Error Code List (Continue)
Detailed
Error CPU
Code States
(D9091)
(1) The CPU
(2) Hardware failure.
(1) The power supply
— STOP
(2) Failure of the power
(1) The battery voltage
(2) The lead connector
Contin
—
ue
(3) The battery voltage
Error and Cause
malfunctioned due to
noise.
module detected an
incorrect power
waveform.
module, CPU
module, main base
unit or expansion
cable is detected.
for the CPU module
has dropped below
the specified value.
of the CPU module
battery is
disconnected.
(M9006 is ON.)
for the memory card
has dropped below
the specified value.
(M9048 is ON.)
112
Corrective Action
(1) Take proper
countermeasures for
noise.
(2) Since it is hardware
error, consult
Mitsubishi
representative.
(1) Correct the power
waveform applied to
the power supply
module.
(2) Replace the power
module, CPU
module, main base
unit or expansion
cable.
(1) Replace the battery
of the CPU module.
(2) Connect the lead
connector when
using the built-in
RAM or the memory
retention function
during power failure.
(3) Replace the battery
of the memory card.