Lenze SX-1 - Coupling of the Load to the Servo System

7.1.2
Coupling of the bad to the Servo System
The numerical control SX-l produces acontrol signal that is dependent upon the differen -
ce between the Required Position W and the Actual Position X. This signal causes a
movement in such a direction as to reduce that difference. Thus the difference between
Required and Actual position (W - X = XW) becomes zero when (W - X) =0, and the servo
stops.
This voltage produceci by the numerical control is determined by the KV factor (= voltage
produced per increment of position error) and is very important in determining drive
stiffness, stability and accuracy.
KV= V
xw
V = Velocity in
XW = Position
m/min
Errorin mm
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Lanz