Tension Sensor Feedback Speed Control; Dedicated Function List - Mitsubishi Electric A800 Plus Series Function Manual

4
TENSION SENSOR FEEDBACK SPEED
CONTROL
Tension sensor feedback speed control is a control function to keep the tension constant using feedback from the tension
sensor, instead of the dancer roll position.
4.1

Dedicated function list

Item
Control method
Tension
Tension command
sensor
feedback Tension detection signal
speed control
Line speed acceleration/deceleration
function
Additional function
Constant line speed control
Winding diameter calculation
Actual line speed detection
Winding
diameter Reduction ratio setting
compensation
Maximum/minimum winding diameter
setting
Speed control proportional gain
compensation function
Winding diameter storage
Dedicated input signal
Common
Dedicated output signal
Dedicated monitor
PID control, PI control, P control, and PD control can be selected.
Gain switchover by tension feedback is available.
Gain switchover by external terminal input is available.
Set a point with a parameter.
Use an analog terminal for the signal input. (Terminal 1, 2, 4, or 6 is selectable.)
Available Three patterns are selectable with external contact signal.
Material break detection function
Available
Calculation based on the line speed detection and the motor rotation speed and
calculation based on the material thickness and the number of motor rotations are
selectable.
Pulse train input (A/B phase, single phase) and analog input are selectable.
Available
Available. (Four patterns are selectable with external signal.)
Available. (Straight movement (with three break points) against the winding
diameter can be performed.)
Available
Dancer/tension control selection, Winding diameter compensation selection, PID
gain switchover, PID integral term reset (P control selection), Line speed
acceleration/deceleration selection, Winding diameter selection, Stored winding
diameter clear, Winding/unwinding selection
Upper limit, Lower limit, Tension feedback detection, Break detection, Initial
winding diameter calculation completion, Target winding diameter achieved,
Winding/unwinding completion
Set point, measured value, deviation, line speed command, winding diameter,
actual line speed, compensation speed, winding length.

TENSION SENSOR FEEDBACK SPEED CONTROL

Dedicated function list
Description
4
97