Tension sensorless torque control details
130
TENSION SENSORLESS TORQUE CONTROL
5.5.5
Inertia compensation function
The acceleration/deceleration torque is given to the motor by increasing/decreasing the torque command value to keep the
material tension constant even during acceleration/deceleration.
Block diagram
Pr.
Name
Initial
value
Setting range
Description
271
R537
Second acceleration time for
inertia compensation
15 s
0 to 3600 s
Set the acceleration time for inertia compensation when
the X113 signal is turned ON.
272
R538
Second deceleration time for
inertia compensation
15 s
0 to 3600 s
Set the deceleration time for inertia compensation when
the X113 signal is turned ON.
753
R539
Empty reel inertia (integer)
9999
10 to 999
Set the significand of the floating-point arithmetic to
determine the empty reel inertia.
9999
No function
754
R540
Empty reel inertia (exponent)
9999
0 to 7, 101 to 104
Set the exponent of the floating-point arithmetic to
determine the empty reel inertia.
9999
No function
1410
R530
Motor inertia
0 kg·m
2
0 to 500 kg·m
2
Set the motor inertia.
9999
The
Pr.707
and
Pr.724
settings are used to determine a
motor inertia for the first motor and the
Pr.744
and
Pr.745
settings for the second motor (refer to
).
When "9999" is set in either
Pr.707
or
Pr.724
, or either
Pr.744
or
Pr.745
, an internal value is used for the first
or second motor inertia.
1411
R531
Empty reel inertia
0 kg·m
2
0 to 500 kg·m
2
Set the empty reel inertia value.
9999
The
Pr.753
and
Pr.754
settings are used to determine
the empty reel inertia.
When "9999" is set in
Pr.753
or
Pr.754
, the inertia is set
to 0.
1412
R532
Roll width
0 mm
0 to 5000 mm
Set the roll width.
1413
R533
Material specific gravity
0 g/cm
3
0 to 20 g/cm
3
Set the specific gravity of the material.
1414
R535
First acceleration time for
inertia compensation
15 s
0 to 3600 s
Set the acceleration time during inertia compensation
operation.
1415
R536
First deceleration time for
inertia compensation
15 s
0 to 3600 s
Set the deceleration time during inertia compensation
operation.
1418
R534
Inertia compensation
cushion time
0 s
0 to 360 s
Set the time for increasing/decreasing the torque for
inertia compensation.
Inertia
Pr.1410
,
Pr.707,
Pr.724
,
Pr.744
,
Pr.745
,
Pr.1411
,
Pr.753
,
Pr.754
Pr.22
Pr.1414
Pr.271
Pr.1415
Pr.272
X113-ON
X113-OFF
X113-ON
X113-OFF
X111-OFF
X111-ON
X112-OFF
X112-ON
Torque limit
Inertia compensation torque
Pr.1418
Cushioning
{
Pr.393
/ (
π
× present winding diameter) / gear ratio} /
(9.55 × acceleration time)
{
Pr.393
/ (
π
× present winding diameter) / gear ratio} /
(9.55 × deceleration time)
Summary of Contents for A800 Plus Series
Page 240: ...239 MEMO ...
