16 - 8
Chapter 16 Troubleshooting
(c) When the set position is not reached
Check item
Action
Does the value in "
Md.20
Current feed value
" indicate
the intended position when
the motor stops?
[When the position set in "
Md.20
Current feed value
" is reached]
• Check that the values in "
Pr.2
Number of pulses per rotation (AP)
",
"
Pr.3
Movement amount per rotation (AL)
", and "
Pr.4
Unit
magnification (AM)
" meet the system.
• When the servo amplifier has the electronic gear function, check
that the settings meet the system.
[When the position set in "
Md.20
Current feed value
" is not reached]
• Check that the motor is not stopped by Axis stop signals. If a
motor is stopped by them, the value "1: stopped" is stored in
"
Md.26
Axis operation status
".
Signal
LD77MS2/LD77MS4
LD77MS16
Axis stop signal
Y4 to Y7
Cd.180
Axis stop
Summary of Contents for MELSEC-L Series
Page 2: ......
Page 30: ...MEMO ...
Page 70: ...2 10 Chapter 2 System Configuration MEMO ...
Page 83: ...3 13 Chapter 3 Specifications and Functions MEMO ...
Page 103: ...3 33 Chapter 3 Specifications and Functions MEMO ...
Page 107: ...3 37 Chapter 3 Specifications and Functions MEMO ...
Page 111: ...3 41 Chapter 3 Specifications and Functions MEMO ...
Page 115: ...3 45 Chapter 3 Specifications and Functions MEMO ...
Page 140: ...4 22 Chapter 4 Installation Wiring and Maintenance of the Product MEMO ...
Page 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
Page 342: ...5 202 Chapter 5 Data Used for Positioning Control MEMO ...
Page 438: ...7 20 Chapter 7 Memory Configuration and Data Process MEMO ...
Page 440: ...MEMO ...
Page 485: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Page 594: ...9 134 Chapter 9 Major Positioning Control MEMO ...
Page 624: ...10 30 Chapter 10 High Level Positioning Control MEMO ...
Page 656: ...11 32 Chapter 11 Manual Control MEMO ...
Page 690: ...12 34 Chapter 12 Expansion Control MEMO ...
Page 798: ...13 108 Chapter 13 Control Sub Functions MEMO ...
Page 866: ...14 68 Chapter 14 Common Functions MEMO ...
Page 884: ...15 18 Chapter 15 Dedicated Instructions MEMO ...
Page 899: ...16 15 Chapter 16 Troubleshooting MEMO ...
Page 1036: ...Appendix 88 Appendices MEMO ...
Page 1039: ......