13 - 48
Chapter 13 Control Sub Functions
13.5.2 Override function
The override function changes the command speed by a designated percentage (1 to
300%) for all control to be executed.
The speed can be changed by setting the percentage (%) by which the speed is
changed in "
Cd.13
Positioning operation speed override
".
[1] Control details
[2] Precautions during control
[3] Setting the override function
[1] Control details
The following shows that operation of the override function.
1) A value changed by the override function is monitored by "
Md.22
Feedrate
".
2) If "
Cd.13
Positioning operation speed override
" is set to 100%, the speed will
not change.
3) If "
Cd.13
Positioning operation speed override
" is set with a value less than "100
(%)" and "
Md.22
Feedrate
" is less than "1", the warning "Less than
minimum speed" (warning code: 110) occurs and "
Md.22
Feedrate" is set
with
"1" in any speed unit.
4) If there is not enough remaining distance to change the speed due to the
"override function", when the speed is changed during the position control of
speed-position switching control or position-speed switching control, the
operation will be carried out at the speed that could be changed.
5) If the speed changed by the override function is greater than the "
Pr.8
Speed
limit value
", the warning "Speed limit value over" (warning code: 501) will
occur and the speed will be controlled at the "
Pr.8
Speed limit value
". The
"
Md.39
In speed limit flag
" will turn ON.
Cd. 13
Da. 8 Command speed
Md. 22 Feedrate
100
1
50
150
100
200
50
50
1
25
75
50
75
Not affected by the override value
during deceleration
Not enough remaining
distance could be secured,
so operation is carried out
at an increased speed.
t
V
Positioning operation
speed override
Fig. 13. 26 Override function operation
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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