Yaskawa SGDB - Manual (Page 88)

APPLICATIONS OF Σ-SERIES PRODUCTS
3.2.3 Using Encoder Outputs
76
J Selecting the Encoder Type
Use the following memory switch to specify the type of the encoder to be used.
Cn-01 Bit E
Encoder Type Selection Factory
Setting: 0
For Speed/Torque Control
and Position Control
Sets the encoder type according to the servomotor type as shown in the table.
After changing the memory switch setting, always turn the power OFF, then ON.
Motor Type
encoder
specifications
Number of Encoder Pulses Per Revolution (P/R)
Setting
2 Incremental encoder:
8192 pulses per revolution
3 Incremental encoder:
2048 pulses per revolution
0
6 Incremental encoder:
4096 pulses per revolution
W Absolute encoder:
1024 pulses per revolution
1
S Absolute encoder:
8192 pulses per revolution
1
J Setting the Pulse Dividing Ratio
Set the pulse dividing ratio in the following parameter.
Cn-0A
PGRAT
Dividing Ratio Setting
Unit:
P/R
Setting
Range: 16
to 32768
For Speed/Torque
Control and Position
Control
Sets the number of output pulses for PG output
signals (PAO, /PAO, PBO and /PBO).
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 parameter. Set this value accord-
ing to the reference unit of the machine or controller to be used.
The setting range varies according to the encoder used.
Motor Type
encoder
specifications
Number of Encoder Pulses Per Revolution Setting Range
2 Incremental encoder: 8192 pulses per revolution 16 to 8192
3 Incremental encoder: 2048 pulses per revolution 16 to 2048
6 Incremental encoder: 4096 pulses per revolution 16 to 4096
W Absolute encoder: 1024 pulses per revolution 16 to 1024
S Absolute encoder: 8192 pulses per revolution 16 to 8192
After changing the parameter setting, always turn the power OFF, then ON.
3
SGMj
servomotor
encoder
SGDB
SERVOPACK
Output terminals:
PAO (1CN-33)
/PAO (1CN-34)
PBO (1CN-35)
/PBO (1CN-36)
Frequency
dividing
Phase A
Phase B output
Phase A
Phase B
Setting example:
Preset value: 16
1 revolution