
B-63943EN-1/02 1.AXIS CONTROL
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Setting example
Slave axis control
Number of pulses of the
position detector per rotation
about the slave axis
parameter No. 7773
Number of pulses of the
position detector per rotation
about the master axis
parameter No. 7772
Slave axis
1,000,000 p/rev
Master axis
1-to-1 connection
Separate detector
(phase A/B)
12,000 p/rev
EGB ratio
Master axis conditions:
The separate detector must be 12000 p/rev.
The master axis and the separate detector must have a 1-to-1
connection.
Slave axis conditions:
The motor pulse coder must be 1 million p/rev.
FFG must be 1/100.
Determine FFG so that condition <1> is satisfied.
word
word
T
L
1
2
≤×
α
β
: Condition <1>
In this example, FFG is set to 1/10. For the EGB, set the function bit,
bit 6 of parameter No. 2273 (FS16i) for considering FFG, and set the
numbers of pulses of the position detector per rotation about the
master and slave axes.
As the number of pulses of the position detector per rotation about the
master axis, set 12000 x FFG (1/10) = 1200.
As the number of pulses of the position detector per rotation about the
slave axis, set 10000.