Tension sensorless torque control details
TENSION SENSORLESS TORQUE CONTROL
125
5
Block diagram
Tension command cushion time (Pr.1282, Pr.1283)
• Set the cushion time for the tension command.
• Set
Pr.1282 Tension command cushion time
for the time to reach
Pr.1283 Cushion time reference tension
.
Taper ratio setting (Pr.1285, Pr.1287)
• The tension command after the tension command cushion is 100%. Set how much to loosen the tension as a taper ratio in
percent.
• The input method for setting the taper ratio can be set by parameters.
∗1
When
Pr.1287
= "9999", the taper ratio is 0%.
NOTE
• The priorities of the input signals are defined as follows. If the input method for a signal is the same as that for the input signal
with higher priority, the signal with lower priority does not work.
Dancer signal input (
Pr.363
) > Actual line speed input (
Pr.362
) > Tension command input (
Pr.804
) > Line speed command
input (
Pr.361
≠
"0") > Taper setting input (
Pr.1285
) > Dancer tension setting input (
Pr.364
) > Line speed command
compensation input > Line speed command input (
Pr.361
= "0")
Pr.1287 setting
Pr.1285 setting
Taper ratio setting
0 to 100%
—
As set in
Pr.1287
9999
3
Terminal 2 input value
4
Terminal 4 input value
5
Terminal 1 input value
6
Terminal 6 (FR-A8AZ) input value
9999
No function
Analog calibration
C2 to C4
Taper mode
selection
Pr.1284
Terminal 2
X123-ON
X123-OFF
Cushioning
Torque command
Winding diameter
Tension command
Analog calibration
C5 to C7
Terminal 4
Analog calibration
C12 to C15
Terminal 1
Analog calibration
C30 to C33
Terminal 6
3
4
5
6
9999
Pr.1285
Pr.1287
Pr.1287
= 9999
Pr.1282
Pr.1409
Gear ratio
Rated motor torque
0
Pr.1287
= 9999
Tension command value
Tension
Time
Pr.1282
Pr.1282
Pr.1283
Summary of Contents for A800 Plus Series
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