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4 APPLICABLE FUNCTIONS
4.3 Scale measurement function [G] [WG]
Function block diagram
The following shows a block diagram of the scale measurement function. In the scale measurement function, the control is
performed in the units of the servo motor encoder.
S
+
-
+
-
+
-
Servo motor-side feedback pulse
(in servo motor-side resolution unit)
Motor-side droop pulse
Current position (absolute position)
Position within one-revolution of scale
measurement encoder
ABS counter of scale measurement
encoder
Scale measurement encoder
Servo motor
Controller
Encoder pulse settings
([Pr. PA15], [Pr. PA16]
and [Pr. PC03])
Control
Monitoring
Load-side feedback pulse
(in resolution unit of scale measurement encoder)
Position command
[Target position (Obj. 607Ah)]
[Following error actual value (Obj. 60F4h)]
[Position actual value (Obj. 6064h)]
[Scale cycle counter (Obj. 2D36h)]
[Scale ABS counter (Obj. 2D37h)]