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Chapter 13 Control Sub Functions
13.8.2 Follow up function
(1) Follow up function
The follow up function monitors the number of motor rotations (actual current
value) with the servo OFF and reflects the value in the feed current value.
If the servomotor rotates during the servo OFF, the servomotor will not just rotate
for the amount of droop pulses at switching the servo ON next time, so that the
positioning can be performed from the stop position.
(2) Execution of follow up
Follow up function is executed continually during the servo OFF status.
All axis servo ON [Y1]
Each axis servo OFF
command
Servo ON or OFF status
OFF
0
0
1
OFF
ON
ON
Servo alarm detected
Follow up function executed
Fig. 13.52 Operation timings of follow up function
POINT
The follow up function performs the process if the "Simple Motion module and
the servo amplifier is turned ON" and "servo OFF" regardless of the presence of
the absolute position system.
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 ...
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