List Of Errors - Mitsubishi Electric MELSEC Q Series User Manual

11 TROUBLESHOOTING

11.2 List of Errors

Error Error
code detail
1 1 Flash ROM error
2 1 DRAM error
4 1 High speed SRAM error
SSCNET communication IC send
6 1
buffer error
SSCNET communication IC receive
7 1
buffer error
8 1 Board information error
"Hold" is set for QD74MH in "Error time
9 1 output mode" of the PLC CPU
parameter.
CPU error (Instruction code error at
1
power supply ON)
100
4 CPU error (Instruction code error)
5 CPU error (Watch dog)
(1) Setting for "
differs from the connecting status of
400 1 servo amplifier.
(2) Communication was cut off by the
servo amplifier's power supply OFF.
SSCNET communication error
401 1
(CRC error)
SSCNET communication error
403 1
(Data ID error)
Setting for "
405 1 from the connecting type of servo
amplifier.
SSCNET communication error
406 1
(Connector not connected error)
No response from the servo amplifier
407 1
and a communication time out occurred.
(1) System errors (1 to 999)
Error
Servo series"
Pr.300
Servo series" differs
Pr.300
Operation status at
Error check
error occurrence
Unit READY does not
At power supply ON
turn ON.
Unit READY turns
OFF.
After PLC READY ON,
Always
Forced stop for except
axis that caused the
error, and unit READY
turns OFF.
At PLC READY ON
After PLC READY ON,
Always
11 - 4
MELSEC-Q
Remedy
Replace the QH74MH.
Set "Clear" for QD74MH in "Error
time output mode" of the
parameter.
Check the influence of noise.
Replace the hardware.
Execute the power cycle after
checking the followings.
(1) Setting for " Servo
Pr.300
series" matches to the
connecting status and rotary
switch of servo amplifier.
(2) Power supply status to servo
amplifier.
(3) SSCNET cable connection
status.
(4) Discconection of SSCNET
cable.
(Note): Turn the servo amplifire's
power supplies on the
communication route ON.
Check the followings.
(1) SSCNET cable connection
status.
(2) Discconection of SSCNET
cable.
Check the connected servo
amplifiers.
Check the followings.
(1) Power supply status to servo
amplifier.
(2) SSCNET cable connection
status.
(3) Discconection of SSCNET
cable.