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6   POSITIONING CONTROL 
 
6.17.5 Constant speed control for helical interpolation 
The helical interpolation can be specified as the positioning control method to pass 
point for 3 or 4 axes constant-speed control. 
Starting or ending instruction for constant-speed control uses the same CPSTART3, 
CPSTART4 or CPEND as 3 or 4 axes constant-speed control instruction.  
 
Servo  
instruction 
Positioning  
method 
Number of  
control axes 
Items set using MT Developer2 
Speed 
change 
Common  Arc/Helical  Parameter block  Others 
Parameter block No. 
Axis 
Address/travel value 
Command speed 
M-code 
Torque limit value 
Auxiliary point 
Radius 
Central point 
Pitch 
Interpolation control unit 
Speed limit value 
Acceleration time 
Deceleration time 
Rapid Stop deceleration time 
Torque limit value 
Deceleration processing on stop input 
Allowable error range for circular interpolation 
S-curve ratio 
Advanced S-curve acceleration/deceleration 
Commanded speed (Constant) 
Cancel 
Skip 
FIN acceleration/deceleration 
WAIT-ON/OFF 
ABH
 
Absolute 
2 
 
   
 
     
 
 
 
 
 
 
 
 
Valid 
ABH
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
ABH
 
ABH
 
ABH
 
ABH
 
 
   
 
   
 
   
 
 
 
 
 
 
ABH
 
INH
 
Incremental 
 
   
 
     
 
 
 
 
 
 
 
 
INH
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
INH
 
INH
 
INH
 
INH
 
 
   
 
   
 
   
 
 
 
 
 
 
INH
 
 
: Must be set 
: Set if required