Mitsubishi Electric M700VS Series Setup Manual page 567

MITSUBISHI CNC
Appendix 2 Explanation of Alarms
Y20 Dual signal: parameter setting error 0027
Details
A setting of #2118 SscDrSel, #3071 SscDrSelSp, #2180 S_DIN, or #3140 S_DINSp is not correct.
Remedy
- Correct the parameter setting.
Y20 Safety observation: parameter memory error 0031 (Parameter No.))
Details
The following parameters are not consistent with the check data.
#2180 S_DIN, #3140 S_DINSp
Remedy
- Correct the parameter setting.
- Restore the backup data, as the parameter or check
data may be corrupted.
Y21 Speed obsv signal: Speed over 0001 (Axis name)
Details
The speed exceeds the safety speed limit when the "speed monitor mode" signal is ON.
The name of the axis with an error is displayed.
Remedy
Decelerate the speed to reset the warning and start the speed monitor.
Y51 Parameter G0tL illegal 0001
Details
The time constant has not been set or exceeded the setting range.
Remedy
Correct "#2004 G0tL (G0 time constant (linear))".
Y51 Parameter G1tL illegal 0002
Details
The time constant has not been set or exceeded the setting range.
Remedy
Correct "#2007 G1tL (G1 time constant (linear))".
Y51 Parameter G0t1 illegal 0003
Details
The time constant has not been set or exceeded the setting range.
Remedy
Correct "#2005 G0t1 (G0 time constant (primary delay) / Second-step time constant for soft
acceleration/deceleration)".
Y51 Parameter G1t1 illegal 0004
Details
The time constant has not been set or exceeded the setting range.
Remedy
Correct "#2008 G1t1 (G1 time constant (primary delay)/Second-step time constant for soft
acceleration/deceleration)".
Y51 Parameter grid space illegal 0009
Details
The grid space is illegal.
Remedy
Correct "#2029 grspc(Grid interval)".
550