Minor Error (1000H To 1Fffh) - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

Minor error (1000H to 1FFFH)

Minor error details and causes, and corrective action are shown below.
Error Error name
code
1000H Power shutoff
1080H ROM write count error
1200H Module moderate error
1210H Module moderate error
1220H Another CPU module
moderate error
1900H PLC ready OFF during
operation
1901H Servo ready OFF
1902H Servo ready OFF
1904H Hardware stroke limit +
1905H Hardware stroke limit +
1906H Hardware stroke limit -
1907H Hardware stroke limit -
1908H Stop signal ON
1909H External stop signal ON
190BH Connect to unsupported
servo amplifier
1927H Servo error detection
signal ON at start
192AH Start acceptance flag ON
at start
Error details and cause
• A momentary power failure has occurred.
• The power supply has been shut off.
The number of writes to the flash ROM exceeded 100000
times. (Number of writes > 100000)
A moderate error has been notified from the intelligent
function module connected.
An inter-module synchronous signal error has been
notified from the intelligent function module connected.
A moderate error has been notified from another CPU
module.
"[Rq.1120] PLC ready flag" is OFF when operating.
"[St.1075] Servo ready" was OFF when starting.
• Servo amplifier power OFF
• In initial processing when the servo amplifier power is
ON
• Servo amplifier unimplemented
• Servo error occurred
• Cable faulty
• "[Rq.1155] Servo OFF command" is ON
Servo amplifier power is OFF when controlling. (Servo not
mounted status detection, cable fault, etc.)
At a forward direction (address increasing direction) start,
the external signal FLS (upper limit switch signal) is OFF.
At a forward direction (address increasing direction)
control, the external signal FLS (upper limit switch signal)
is OFF.
At a reverse direction (Address decreasing direction) start,
the RLS external signal (Lower limit switch) is OFF.
At a reverse direction (Address decreasing direction)
controlling, the RLS external signal (Lower limit switch) is
OFF.
• "[Rq.1140] Stop command" is ON when starting.
• "[Rq.1140] Stop command" is ON at the timing of home
position return.
• "[Rq.341] Command generation axis stop command" is
ON when starting.
• External stopping signal is ON when starting.
• External stopping signal is ON at the timing of the home
position return.
Connect to unsupported servo amplifier and driver.
The "[St.1068] Servo error detection" is ON when starting.
• The "[St.1040] Start acceptance flag" is ON when
starting.
• The "[St.345] Command generation axis starting
acceptance flag" is ON when starting.
Corrective action
Check the power supply status.
Replace the CPU module.
Check the detailed information (system configuration
information), identify the error module, and eliminate the
error cause.
Check the detailed information (system configuration
information), identify the error module, and eliminate the
error cause.
• Check the detailed information (system configuration
information), identify the error CPU module, and
eliminate the error cause.
• Check the mounting status and reset status of other
CPU modules.
When all axes stopped, turn "[Rq.1120] PLC ready flag"
ON.
Start when the "[St.1075] Servo ready" is ON.
• Turn on the power supply of the servo amplifier. Or
check the connect cable to the servo amplifier.
• Execute gain adjustment.
Perform the home position return after moving to the
proximity dog ON by the JOG operation, etc.
Perform the home position return after moving to the
proximity dog ON by the JOG operation, etc.
Perform the home position return after moving to the
proximity dog ON by the JOG operation, etc.
Perform the home position return after moving to the
proximity dog ON by the JOG operation, etc.
• Turn OFF the "[Rq.1140] Stop command" and then start
it.
• "[Rq.1140] Stop command" and then perform the home
position return.
• Turn OFF the "[Rq.341] Command generation axis stop
command" and then start it.
• Start as the external stop signal is OFF.
• Execute the home position return as the external stop
signal is OFF.
Connect to supported servo amplifier and driver.
Eliminate the servo error, reset the "[St.1068] Servo error
detection" by the "[Rq.1148] Servo error reset command",
then start operation.
• Start when the "[St.1040] Start acceptance flag" is OFF.
• Start when the "[St.345] Command generation axis start
acceptance flag" is OFF.
APPENDICES
Appendix 1 Error Codes
A
385