YASKAWA SGM-A3 User Manual page 92

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
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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
SGM-jjj31j Incremental encoder: 2048 pulses per revolution
SGMP-jjj31j
SGM-jjjW1j Absolute encoder: 1024 pulses per revolution
SGMP-jjjW1j
For the user constant Cn-0A, always turn the power OFF and then ON after chang-
ing the setting. This makes the new setting valid.
3.2 Setting User Constants According to Host Controller
Unit: Setting
P/R Range: 16
to No. of
Encoder
Pulses
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PBO).
Setting example:
Number of Encoder Pulses Per Revolution
Factory For Speed/Torque
Setting: Control and Position
2048 Control
Output terminals:
PAO (1CN-33)
Servopack
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PAO (1CN-34)
Servomotor
PBO (1CN-35)
encoder
£
PBO (1CN-36)
Phase A
Frequency
dividing
Phase B
Preset value: 16
1 revolution
Setting Range
16 to 2048
16 to 1024
3
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