Mitsubishi QJ71LP21 Reference Manual page 291

8 TROUBLESHOOTING
Error
Code Error Contents and Cause
*1
(SD0)
• A module which the QCPU cannot
recognise has been installed.
2125 • There was no response form the
intelligent function module/special
function module.
CPU module locations in a multiple
CPU system are either of the following.
• There are empty slots between the
QCPU and QCPU/motion controller.
• A module other than the High
2126
Performance model QCPU/Process
CPU (including the motion
controller) is mounted on the left-
hand side of the High Performance
model QCPU/Process CPU.
In a multiple CPU system, the control
CPU of the intelligent function module
2150
incompatible with the multiple CPU
system is set to other than CPU No.1.
Either of the following modules
incompatible with the redundant
system has been mounted in a
2151
redundant system.
• MELSECNET/H
• Ethernet
There is no parameter file in the drive
specified as valid parameter drive by
2200 the DIP switches.
There is no parameter file at the
program memory.
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*12 : This applies to the CPU module of function version B or later.
8 - 80
Corrective Action
• Install a usable module.
• The intelligent function module/
special function module is
experiencing a hardware fault.
(Contact your local Mitsubishi
representative.)
• Mount modules on the available
slots so that the empty slots will be
located on the right-hand side of the
CPU module.)
• Remove the module mounted on the
left-hand side of the High
Performance model QCPU/Process
CPU, and mount the High
Performance model QCPU/Process
CPU on the empty slot.
Mount the motion CPU on the right-
hand side of the High Performance
model QCPU/Process CPU.
• Change the intelligent function
module for the one compatible with
the multiple CPU system (function
version B).
• Change the setting of the control
CPU of the intelligent function
module incompatible with the
multiple CPU system to CPU No.1.
Use either of the following modules
compatible with the redundant system.
• MELSECNET/H
• Ethernet
• Check and correct the valid
parameter drive settings made by
the DIP switches.
• Set the parameter file to the drive
specified as valid parameter drive by
the DIP switches.
Set the parameter file to the program
memory.
MELSEC-Q
Corresponding
CPU
QCPU
Rem
*12
Qn(H)
QnPH
QnPRH
Qn(H)
QnPH
QnPRH
Q00J/Q00/Q01
8 - 80