Control Mode; Vii. Control Mode - Parker FL-20-C Series Product Manual

VII.

Control mode

Servo system includes servo drive, servo motor and encoder.
Command
input
Position loop
+
X
control
-
Position feedback
Based on the command modes and running characteristics, servo drives supports three running
mode, position control, speed control and torque control.
In the position control mode, motor target position is confirmed by position command total
numbers. The position control mode strictly controls the position and speed, and is often used in
the positioning device. It is the most commonly used mode of the servo drive, applicable to the
mechanical arm, mounter, engraving and milling machine, and computer numerical control
(CNC) machine tool.
In the speed control mode, the speed is controlled by DI setting, or communication setting. It is
often used in scenarios with constant speed. The host controller uses the position mode, and the
servo drive uses the speed control mode.
In the torque control mode, the torque is changed by changing the address value by means of
communication. This mode is mainly applied to the winding and unwinding devices with strict
tension requirements.
FL20-C Series
Servo drive
+ Speed loop
X
control
-
Speed
feedback
Speed
calculation
106
Current loop
+
X
control
-
Current
feedback
Motor
M
Encoder