110
3 BASIC FUNCTION
3.9 Electronic gear function [G] [WG]
• When setting "2" (degree) in [Pr. PT01.2 Unit for position data]
Set the number of gear teeth on machine side with [Pr. PA06 Electronic gear numerator] and the number of gear teeth on
servo motor side with [Pr. PA07 Electronic gear denominator]. [Motor revolutions (Obj. 6091h: 01h)] and [Shaft revolutions
(Obj. 6091h: 02h)] can also be used for the setting.
P
t
: Servo motor encoder resolution [pulse/rev]
CMX: Number of gear teeth on machine side
CDV: Number of gear teeth on servo motor side
Ex.
If the number of gear teeth on machine side is 25 and the number of gear teeth on servo motor side is 11, set [Pr. PA06] to 25
and [Pr. PA07] to 11.
P
t
(servo motor resolution): 67108864 pulses/rev
Z
1
: Number of gear teeth on servo motor side
Z
2
: Number of gear teeth on machine side
Z
1
: Z
2
= 11: 25
+
-
M
CDV
CMX
360000
Pt
([Pr. PA06]/[Pr. PA07])
([Obj. 6091h: 01h]/[Obj. 6091h: 02h])
Deviation counter
Servo motor
Encoder
Electronic gear
Travel distance
[command unit]
or
Z
1
Z
2
Machine
Servo motor