Tension Sensorless Torque Control Details; Tension Sensorless Torque Control Setting Method - Mitsubishi Electric A800 Plus Series Function Manual

5.5

Tension sensorless torque control details

The tension sensorless torque control is performed to control the output torque of a motor according to the winding diameter
of a roll so that the tension applied to a material is constant.
Winding and unwinding of the material is enabled without using dancer rolls or tension controllers.
Purpose
To perform setting for tension
sensorless torque control
To select the tension command
input method
To select the tension command
setting increment
To select the torque generation
direction
To prevent the roll from getting too
tight when the winding diameter
increases
To keep the tension applied to the
material constant also during
acceleration/deceleration
To prevent tension change due to
factors such as mechanical friction
To prevent sagging of the material
before starting winding
POINT POINT
• Select torque control under vector control or Real sensorless vector control to perform tension sensorless torque control.
• Turn the X114 signal ON to perform tension sensorless torque control. When the X114 signal is OFF, the tension sensorless
torque control is not available.
5.5.1
Tension sensorless torque control setting
method
Control method selection
• Select torque control under vector control or Real sensorless vector control to perform tension sensorless torque control.
• Use Pr.800 Control method selection to select torque control under vector control or Real sensorless vector control.
Pr.800
Pr.80 (Pr.453),
Pr.81 (Pr.454) setting
∗1
1, 101
Motor capacity,
2, 102
number of motor
11, 111
poles
12, 112
: Valid, ×: Invalid
∗1 The setting values of 100 and above are used when the fast-response operation is selected. (For the SND rating, the fast-response operation is
not available.)
∗2 Advanced magnetic flux vector control is applied if a vector control compatible option is not installed.
Tension control selection signal (X114 signal)
• Turn ON the Tension control selection (X114) signal to enable the tension sensorless torque control.
• To input the X114 signal, set "114" in any of Pr.178 to Pr.189 (input terminal function selection) to assign the function.
Control method
selection
Tension command
source selection
Tension command
increment
Torque generation
direction setting
Taper function
Inertia compensation
function
Mechanical loss
compensation
function
Stall mode function
Pr.451
Control method
setting
∗1
—
Vector control
∗2
—
Real sensorless
vector control
TENSION SENSORLESS TORQUE CONTROL
Tension sensorless torque control details
Parameter to set
P.C100 (P.C200),
P.C101 (P.C201),
P.C102 (P.C202),
P.G200, P.G300
P.R300
P.R301
P.R304, P.R305
P.R320, P.R321,
P.R500 to P.R504,
P.R510 to P.R519,
P.R600, P.R601
P.R530 to P.R540
P.R003, P.R550 to
P.R560
P.R340 to P.R343
Control mode
Torque control
Speed control/torque control switchover
Torque control
Speed control/torque control switchover
Refer to
page
Pr.80 (Pr.453),
Pr.81 (Pr.454),
117
Pr.71 (Pr.450),
Pr.800, Pr.451
Pr.804
118
Pr.1401 118
Pr.1072, Pr.1114
121
Pr.829, Pr.1243,
Pr.1244, Pr.1282 to 124
Pr.1297
Pr.271, Pr.272,
Pr.753, Pr.754,
130
Pr.1410 to Pr.1415,
Pr.1418
Pr.1230, Pr.1419 to
135
Pr.1429
Pr.270, Pr.1406,
137
Pr.1407, Pr.1409
Tension sensorless
torque control
MC-ON MC-OFF

 ×

×

5
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