YASKAWA Sigma-V Series User Manual page 162

(1) Electronic Gear Ratio
Set the electronic gear ratio using Pn20E and Pn210.
Electronic Gear Ratio (Numerator)
Pn20E
Setting Range
1 to 1073741824
Electronic Gear Ratio (Denominator)
Pn210
Setting Range
1 to 1073741824
If the gear ratio of the servomotor and the load shaft is given as n/m where m is the rotation of the servomotor
and n is the rotation of the load shaft,
B
Electronic gear ratio:
A
Encoder Resolution
Encoder resolution can be checked with servomotor model designation.
SGMVV
Electronic gear ratio setting range: 0.001
If the electronic gear ratio is outside this range, a parameter setting error 1 (A.040) will
be output.
Setting Unit
1
Setting Unit
1
Pn20E
Encoder resolution
= =
Pn210
Travel distance per load
shaft revolution (reference units)
Symbol Specification
3 20-bit absolute
D 20-bit incremental
Position
Factory Setting When Enabled
4 After restart
Position
Factory Setting When Enabled
1 After restart
m
×
n
Encoder Resolutions
1048576
1048576
≤
Electronic gear ratio (B/A)
5.4 Position Control
Classification
Setup
Classification
Setup
Rotation
≤
4000
5-41
5