Yaskawa SGDB - Manual (Page 166)

APPLICATIONS OF Σ-SERIES PRODUCTS
3.8.5 Using an Absolute Encoder cont.
154
NOTE If the SEN signal is to be turned O F F, then ON again, it must remain at high level for at
least 1.3 seconds before being turned OFF.
SEN signal
OFF ON: High level ON
1.3 seconds or more
15 ms
or more
OFF
J Memory Switch to 1 to Select Absolute Encoder
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 to be used.
After changing the memory switch setting, turn the power OFF, then ON.
Motor Type
encoder
specifications
Number of Encoder Pulses Per Revolution Preset Value
2 Incremental encoder: 8192 pulses per revolution
3 Incremental encoder: 2048 pulses per revolution 0
6 Incremental encoder: 4096 pulses per revolution
0
W Absolute encoder: 1024 pulses per revolution
1
S Absolute encoder: 8192 pulses per revolution
1
Use the following parameter to set the number of pulses for the absolute encoder to be
used:
Cn-11
PULSNO
Number of Encoder
Pulses
Unit:
P/R
Setting
Range:
Number of
Encoder
Pulses
For Speed/Torque
Control and Position
Control
Sets the number of encoder pulses according to the servomotor type to be used.
After changing the memory switch setting, turn the power OFF, then ON.
Motor Type
encoder
specifications
Number of Encoder Pulses Per Revolution Preset Value
2 Incremental encoder: 8192 pulses per revolution 8192
3 Incremental encoder: 2048 pulses per revolution 2048
6 Incremental encoder: 4096 pulses per revolution 4096
W Absolute encoder: 1024 pulses per revolution 1024
S Absolute encoder: 8192 pulses per revolution 8192
3