YASKAWA Sigma-7 SGD7S Series - Page 181

6 16,777,216
SGM7J, SGM7A,
SGM7P, SGM7G -ooooooo
7
16,777,216
F
16,777,216
SGMCS -ooooooo
3
1,048,576
D
1,048,576
SGMCV -ooooooo
E
4,194,304
I
4,194,304
SGM7E, SGM7F -ooooooo
Code
Code
Code
Specification
Specification
24-bit multiturn absolute encoder
24-bit incremental encoder
20-bit single-turn absolute encoder
20-bit incremental encoder
Encoder Resolution
Encoder Resolution
Specification
22-bit single-turn absolute encoder
22-bit multiturn absolute encoder
Encoder Resolution
Code
Specification
24-bit batteryless multiturn absolute encoder
Encoder Resolution
7
16,777,216
F 16,777,216
24-bit multiturn absolute encoder
24-bit incremental encoder
3
1,048,576
SGM7M -ooooooo
Code
Specification
20-bit multiturn absolute encoder
Encoder Resolution
Fig. 128: Encoder Resolution in the Servomotor Model Number
Linear Servomotors
You can calculate the settings for the electronic gear ratio with the following equation:
When Not Using a Serial Converter Unit
Use the following formula if the linear encoder and SERVOPACK are connected directly
or if a linear encoder that does not require a Serial Converter Unit is used.
Numerator
Denominator
B
A
Electronic gear ratio
Travel distance per reference unit (reference units) × Linear encoder resolution
Linear encoder pitch (the value from the following table)
=
=
Fig. 129: Calculating the Settings for the Electronic Gear Ratio - Linear Servomotors For-
mula without Serial Converter Unit
When Using a Serial Converter Unit
B
A
Numerator
Denominator
=
=
Electronic gear ratio
Travel distance per reference unit (reference units) × Resolution of the Serial Converter Unit
Linear encoder pitch (setting of Pn282)
Fig. 130: Calculating the Settings for the Electronic Gear Ratio - Linear Servomotors For-
mula with Serial Converter Unit
Feedback Resolution of Linear Encoder
The linear encoder pitches and resolutions are given in the following table.
Calculate the electronic gear ratio using the values in the following table.
Sigma-7 Series SERVOPACKs
Basic Functions That Require Setting before Operation
Setting Unit Systems > Setting the Position Reference Unit
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