Mitsubishi Electric A800 Plus Series Function Manual page 129

Tension sensorless torque control details
Pr.1284 setting
3
Hyperbolic taper profile 2
4
Data table profile
128
TENSION SENSORLESS TORQUE CONTROL
Winding diameter ≤ Pr.1286
F = F*
TP
Pr.1286 < Winding diameter
F∗ × Taper ratio setting
F = F∗ −
TP
100
F : Taper control tension command, F*: Tension command, D: winding diameter
TP
Tension command value
Tension command
Taper ratio setting
When the Pr.1286 setting is smaller than the minimum winding diameter and Pr.1286 = "9999", the winding
diameter at taper start is the minimum winding diameter.
When the minimum winding diameter is equal to or larger than the maximum winding diameter, the taper
function is invalid.
Tension commanded for taper control = Data table profile setting
X1: Data table winding diameter 1, Y1: Data table taper ratio 1
X2: Data table winding diameter 2, Y2: Data table taper ratio 2
X3: Data table winding diameter 3, Y3: Data table taper ratio 3
X4: Data table winding diameter 4, Y4: Data table taper ratio 4
X5: Data table winding diameter 5, Y5: Data table taper ratio 5
Tension command value
Tension command
Y1, Y2
Y3
Taper mode
Pr.1286
× 1 −
D
Taper control tension command
Minimum Pr.1286
winding diameter winding diameter
Taper control tension command
Minimum X1 X2
winding
diameter
Taper ratio setting
Taper ratio = 100%
Winding diameter
Maximum
Taper ratio = 100%
Winding diameter
Maximum X3
winding
diameter