Hiwin E1 Series User Manual

E1 Series Servo Drive User Manual Basic Function Settings Before Operation
HIWIN MIKROSYSTEM CORP. 6-27
MD09UE01-1910
Example:
The resolution of rotary encoder is 8388608 count/rev. The screw pitch is 10 mm/rev. The reduction
ratio is 1/10. The control unit for each pulse is 1 mm. The calculation is as below.
Electronic gear ratio =
Pt20E
Pt210
=
8388608 count/rev
10(mm/rev) ÷ 1mm
×
10
1
Set Pt20E to 8388608 and Pt210 to 1. Then the load side moves 1 mm when the controller inputs
one pulse.
 Linear servo motor
When linear servo motor or full-closed loop control system is used, use electronic gear ratio to
change control unit.
Example 1:
The resolution of linear digital encoder is 0.5 um/count. The control unit for each pulse is 0.1 um. The
calculation is as below.
Electronic gear ratio =
Pt20E
Pt210
=
0.1um
0.5um
Set Pt20E to 1 and Pt210 to 5. When the controller inputs five pulses, the load side moves 0.5 um.
Example 2:
The scale pitch of linear analog encoder is 20 um. The analog encoder multiplier factor is 250. The
encoder resolution is 20 um/(250 x 4)=0.02 um. The control unit for each pulse is 0.1 um. The
calculation is as below.
Electronic gear ratio =
Pt20E
Pt210
=
0.1um
0.02um
Set Pt20E to 50 and Pt210 to 1. When the controller inputs one pulse, the load side moves 0.1 um.
 While setting electronic gear ratio, the value of Pt20E/Pt210 needs to be between
0.001 and 64000.

Hiwin E1 Series Specifications

General

Brand	Hiwin
Model	E1 Series
Category	Servo Drives
Language	English