
B-63783EN-1/01 1.AXIS CONTROL
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5997 Number of pulses from the position detector per EGB slave axis rotation
[Input type] Parameter input
[Data type] Integeraxis
[Unit of data] detection unit
[Valid data range] 1 - 999999999
Set the number of pulses from the position detector per EGB slave axis rotation.
Specify the number of pulses output by the detection unit.
Example 1:
When th EGB master axis is the spindle, and the EGB slave axis is the C-axis
Spindle-to-detector gear ratio B: 1/1 (The spindle and detector are connected
directly.)
Number of pulses from the detector of the spindle β: 80000 pulses/rev
(calculated assuming that four pulses are generated in one A/B phase cycle)
C-axis gear ratio A: 1/36 (The C-axis rotates one turn while the motor rotates 36
turns.)
Number of pulses from the detector of the C-axis α: 1,000,000 pulses/rev
C-axis CMR: 1
Flexible feed gear n/m: 1/100
In this case, the number of pulses per spindle rotation is obtained as follows:
80000×1/1 = 80000
So, set 80000 in parameter No. 5996.
The number of pulses per C-axis rotation by the detection unit is obtained as
follows:
1000000÷1/36×1/100 = 360000
In parameter No. 5997, set 360000.
Synchronization
coefficient
Synchronous switch
Spindle
CNC
Detection unit
β p/rev
α p/rev
C-axis
Speed/current
control
Least command increment
0.001 deg
Command pulse
n/m
Gear ratio
A
Motor
Detector
Error
counter
×CMR
Slave axis
Detector
Gear ratio B
Error
counter
Follow-up
×CMR
Dummy
axis