
PROGRAMMING
B–63534EN/02
20. AXIS CONTROL FUNCTIONS
587
Ps : (Amount of C–axis movement) CMR
→ 3260 1 B 2
Kn
Kd
+
3260 1
72000 2
+
163
7200
(a) causes an alarm to be output because the values cannot be
abbreviated. (b) causes no alarm because the ratio of the travel
distances can be abbreviated to a simple ratio.
When retract signal RTRCT is set to 1 (on the rising edge of the signal),
retraction is performed according to the retract value set in parameter No.
7741 and the feedrate set in parameter No. 7740.
The tool does not move along an axis for which the amount of retraction
is set to 0.
After retraction, retraction completion signal RTRCTF is output.
CAUTION
1 Retract operation is performed at the feedrate specified in
parameter No. 7740.
2 Feed hold cannot be applied to retraction.
3 In this case, the feedrate override capability is disabled.
NOTE
1 When the retract signal goes on during automatic operation,
retract operation is performed, and automatic operation is
stopped.
2 Automatic operation cannot be performed in retraction.
Note the following points when specifying parameters for the electronic
gear box.
1. Arrange the controlled axes such that a slave axis appears before a
dummy axis.
(Example)
Example of incorrect setting Example of correct setting
Axis name
Servo axis
number
(No.1023)
Axis name
Servo axis
number
(No.1023)
X 1 X 1
Y 2 Y 2
C (dummy axis) 3 C (slave axis) 3
C (slave axis) 4 C (dummy axis) 4
2. Do not use a name which is usually not allowed to be used as an axis
address, such as D.
3. Specify the same values for an EGB slave axis and an EGB dummy
axis in the following parameters.
D Retraction function
D Notes on parameter
settings