Tension sensorless torque control details
TENSION SENSORLESS TORQUE CONTROL
117
5
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.
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.
: 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.
Purpose
Parameter to set
Refer to
page
To perform setting for tension
sensorless torque control
Control method
selection
P.C100 (P.C200),
P.C101 (P.C201),
P.C102 (P.C202),
P.G200, P.G300
Pr.80 (Pr.453),
Pr.81 (Pr.454),
Pr.71 (Pr.450),
Pr.800, Pr.451
To select the tension command
input method
Tension command
source selection
P.R300
Pr.804
To select the tension command
setting increment
Tension command
increment
P.R301
Pr.1401
To select the torque generation
direction
Torque generation
direction setting
P.R304, P.R305
Pr.1072, Pr.1114
To prevent the roll from getting too
tight when the winding diameter
increases
Taper function
P.R320, P.R321,
P.R500 to P.R504,
P.R510 to P.R519,
P.R600, P.R601
Pr.829, Pr.1243,
Pr.1244, Pr.1282 to
Pr.1297
To keep the tension applied to the
material constant also during
acceleration/deceleration
Inertia compensation
function
P.R530 to P.R540
Pr.271, Pr.272,
Pr.753, Pr.754,
Pr.1410 to Pr.1415,
Pr.1418
To prevent tension change due to
factors such as mechanical friction
Mechanical loss
compensation
function
P.R003, P.R550 to
P.R560
Pr.1230, Pr.1419 to
Pr.1429
To prevent sagging of the material
before starting winding
Stall mode function
P.R340 to P.R343
Pr.270, Pr.1406,
Pr.1407, Pr.1409
Pr.80 (Pr.453),
Pr.81 (Pr.454)
Pr.800
Pr.451
setting
Control method
Control mode
Tension sensorless
torque control
MC-ON
MC-OFF
Motor capacity,
number of motor
poles
1, 101
—
Vector control
Torque control
2, 102
—
Speed control/torque control switchover
×
11, 111
Real sensorless
vector control
Torque control
12, 112
Speed control/torque control switchover
×
Summary of Contents for A800 Plus Series
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