Mitsubishi Electric RD77MS2 - List of Error Codes; Simple Motion Module Detection Error

14 TROUBLESHOOTING
14.5 List of Error Codes
591
14
14.5 List of Error Codes
Simple Motion module detection error
Error code
(Hexadecimal)
Error name Error details and causes Remedy
0000H Normal 
1080H Flash ROM write
number error
Data is written to the flash ROM continuously 25 times
or more from the program.
[Operation status at error occurrence]
The system does not write data to the flash ROM.
Review the program so that data is not written
continuously to the flash ROM. (Using "[Md.19]", the
number of flash ROM write times can be monitored.)
(If this error has occurred in a proper using method,
writing is enabled by resetting the error, switching
power OFF, then ON, or resetting the CPU module.)
1867H Dedicated instruction
I/F error
Mismatching occurs between the CPU module and the
Simple Motion module.
[Operation status at error occurrence]
At start: The system does not operate.
A trouble occurs. Repair.
18B0H Error when switching
from normal
operation mode to
amplifier-less
operation mode
Input signals other than synchronization flag [X1] are
ON when switching from the normal operation mode to
the amplifier-less operation mode.
[Operation status at error occurrence]
The operation mode is not changed.
Switch the operation mode after confirming that all
input signals other than synchronization flag [X1] are
OFF.
18B1H Error when switching
from amplifier-less
operation mode to
normal operation
mode
Input signals other than synchronization flag [X1] are
ON when switching from the amplifier-less operation
mode to the normal operation mode.
[Operation status at error occurrence]
The operation mode is not changed.
Switch the operation mode after confirming that all
input signals other than synchronization flag [X1] are
OFF.
18C0H Unit synchronization
cycle setting
unsupported
The setting value of unit synchronization cycle is
unsupported.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
With the setting brought into the supported range,
switch the power on again or reset the CPU module.
1900H PLC READY OFF
during operation
The PLC READY signal [Y0] is turned OFF during
operation.
[Operation status at error occurrence]
The system stops with the setting (deceleration stop/
sudden stop) of the detailed parameter 2 Sudden stop
selection (stop group 2).
(Note that the deceleration stop only occurs during the
manual pulse generator operation.)
Review the program which turns ON/OFF PLC READY
signal [Y0].
1902H Servo READY signal
OFF during
operation
The servo READY signal is turned OFF during
operation.
[Operation status at error occurrence]
During operation: The system stops immediately.
Check the servo amplifier power, wiring with the servo
amplifier, and connection of connectors.
1903H Test mode faults
during operation
The personal computer cannot communicate with the
CPU module.
[Operation status at error occurrence]
The system stops with the setting (deceleration stop/
sudden stop) of the detailed parameter 2 Sudden stop
selection (stop group 2).
(Note that the deceleration stop only occurs during the
manual pulse generator operation.)
Check that there is no error on the personal computer
side I/F to which a cable is connected.
1904H Hardware stroke limit
(+)
Start is requested when the hardware stroke limit (upper
limit signal FLS) is turned OFF.
[Operation status at error occurrence]
The system does not start.
• Check the wiring of upper limit signal FLS.
• Check if the specification of the limit switch and the
setting of the "[Pr.22] Input signal logic selection"
match.
• If hardware stroke limit (limit switch) is unnecessary
system for installation, wire to always turn ON the
upper limit signal (FLS) input of the Simple Motion
module.