YASKAWA SGM series User Manual page 87

APPLICATIONS OF Σ-SERIES PRODUCTS
3.2.3 Using Encoder Output cont.
3
76
4) Set the pulse dividing ratio in the following user constant.
PGRAT
Dividing Ratio Setting
Cn-0A
Sets the number of output pulses for PG output
£
signals (PAO, PAO, PBO and
Pulses from motor encoder (PG) are divided by
the preset number of pulses before being output.
The number of output pulses per revolution is set in this user constant. Set this value ac-
cording to the reference unit of the machine or controller to be used.
The setting range varies according to the encoder used.
Motor Type Number of Encoder Pulses Per Revolution
SGM-jjj31j Incremental encoder: 2048 pulses per revolution
Absolute encoder: 1024 pulses per revolution
SGM-jjjW1j
Unit: Setting Factory
P/R Range: 16 Setting:
to No. of 2048
Encoder
Pulses
Servomotor
£
PBO).
encoder
Setting example:
For Speed/Torque
Control and Position
Control
Output terminals:
PAO (1CN-20)
Servopack
£
PAO (1CN-21)
PBO (1CN-22)
£
PBO (1CN-23)
Phase A
Frequency
dividing
Phase B
Preset value: 16
1 revolution
Setting Range
16 to 2048
16 to 1024