Mitsubishi Electric A800 Plus Series Function Manual page 126

Block diagram
Winding diameter
Tension command
X123-OFF
Pr.1282
Pr.1409
X123-ON
Terminal 2
Terminal 4
Terminal 1
Terminal 6
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.
Tension command value
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.
Pr.1287 setting Pr.1285 setting
0 to 100% —
3
4
9999 5
6
9999
∗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")
Cushioning
3
Analog calibration
C2 to C4
Analog calibration
4
C5 to C7
Pr.1287 = 9999
Analog calibration 5
C12 to C15
Pr.1285
6
Analog calibration
C30 to C33
Pr.1287
9999
Pr.1287 = 9999
0
Tension
Pr.1283
Pr.1282
Taper ratio setting
As set in Pr.1287
Terminal 2 input value
Terminal 4 input value
Terminal 1 input value
Terminal 6 (FR-A8AZ) input value
No function
∗1
TENSION SENSORLESS TORQUE CONTROL
Tension sensorless torque control details
Taper mode
Gear ratio
selection
Rated motor torque
Pr.1284
Pr.1282
Torque command
Time
125
5