
B-63943EN-1/02 1.AXIS CONTROL
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7741 Retracted distance
[Input type] Parameter input
[Data type] Real axis
[Unit of data] mm, inch, deg (machine unit)
[Minimum unit of data] Depend on the increment system of the applied axis
[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting
table (A) )
(When the increment system is IS-B, -999999.999 to +999999.999)
This parameter sets the retracted distance for each axis.
7772 Number of position detector pulses per rotation about the tool axis
[Input type] Parameter input
[Data type] 2-word path
[Valid data range] 1 to 999999999
This parameter sets the number of pulses per rotation about the tool
axis (on the spindle side), for the position detector.
For an A/B phase detector, set this parameter with four pulses
equaling one A/B phase cycle.
7773 Number of position detector pulses per rotation about the workpiece axis
[Input type] Parameter input
[Data type] 2-word path
[Valid data range] 1 to 999999999
This parameter sets the number of pulses per rotation about the
workpiece axis (on the slave side), for the position detector.
Set the number of pulses output by the detection unit.
Set parameters Nos. 7772 and 7773 when using the G81 EGB
synchronization command.
(Example 1)
When the EGB master axis is the spindle and the EGB slave axis is
the C-axis
Synchronization
switch
CNC
Detection unit
p/rev
α p/rev
C-axis
Least command increment
0.001deg
Command
pulses
FFG
Gear ratio
A
Detector
×CMR
Slave axis
Gear
ratio B
Error counter
Follow-up
×CMR
Dummy axis
n/m
FFG
N/M
Motor
Detector
Spindle
Error counter Speed/current control
Synchronization
facto