Mitsubishi Electric A800 Plus Series Function Manual page 211

Application examples
Pr. Parameter name
Acceleration/deceleration time
270
∗1
during stall condition
Line speed command voltage/
350
current bias
351 Line speed command bias
Line speed command voltage/
352
current gain
353 Line speed command gain
358 Line speed unit
360 Line speed command value
Line speed command input
361
selection
362 Actual line speed input selection 0
Dancer / tension sensor
363
feedback input selection
369 Number of encoder pulses
Line speed command
393 acceleration/deceleration
reference
First acceleration time for line
394
speed command
First deceleration time for line
395
speed command
Winding diameter storage
645
selection
Operation time with stored
647
winding diameter
800 Control method selection
Constant output range torque
803
characteristic selection
Tension / Torque command
804
source selection
807 Speed limit selection
821 Speed control integral time 1
868 Terminal 1 function assignment
1230 Winding/unwinding selection
1235 Maximum winding diameter 1
1236 Minimum winding diameter 1
Gear ratio numerator (follower
1243
side)
Gear ratio denominator (driver
1244
side)
Sampling time for winding
1245
∗1
diameter calculation
210
APPENDIX
Setting value
Initial
Intermediate
value
roller
15 s 15 s
0% 0%
0 m/min 0 m/min
50% 50%
1000 m/min 400 m/min
0 0
0 m/min 0 m/min
9999 3
0
9999 9999
1024 2048
1000 m/min 250 m/min
15 s 5 s
15 s 5 s
0 0
0 s 0.01 s
20 0
0 0
0 0
0 0
0.333 s 0.333 s
0 0
0 1
2 mm 80 mm
1 mm 80 mm
1 10
1 12
9999 0.1
Winding
roller
Set the acceleration/deceleration time during stall
mode.
Use Pr.358 to set the increment.
100%
Use Pr.358 to set the increment. Maximum line
speed (400 m/min) is set.
0: m/min (increment of the maximum line speed)
If setting Pr.361 to "8", set a line speed command
value in this parameter.
3: Input via terminal 2
0: Signals for the actual line speed are not input
(the actual line speed is determined by calculating
from the line speed setting).
Leave the setting "9999 (initial value)" (No
function) since tension feedback is not required.
The line accelerates to 250 m/min in 5 seconds.
Setting must be lower than the acceleration/
deceleration rate of the line speed command
(input via terminals 2 and 5).
When "1" (storing roll diameters enabled) is set,
the input of the Stored winding diameter clear
(X109) signal is required.
The storing of roll diameters (writing in EEPROM)
is conducted when the inverter power or the X114
signal turns OFF. Note that the storing is not
conducted when the RES signal is input.
1
Therefore, avoid inputting the RES signal
frequently without storing the roll diameters.
For the input of the RES signal by necessity such
as a reset of the inverter fault, it is recommended
to configure the sequence that the RES signal will
be input after the X114 signal turns OFF and
before the X114 signal turns ON again.
Be sure to set this parameter when storing roll
diameters is set to enabled (the value of the
stored roll diameter is not applied to any setting if
this parameter is not set).
0: Vector control (speed control)
2 2: Vector control (switchover between speed
control and torque control)
To limit output torque in the constant power range,
set "1" (constant torque).
Tension command given by analog input via
terminal 1 on the inverter (0 to ±10 VDC)
or terminal 6 on the FR-A8AZ (0 to ±10 VDC)
2: Speed limit command given by analog voltage
2
input via terminal 1
0 s
2 2: Forward/reverse rotation speed limit (Pr.807=2)
0 0:Winding, 1: Unwinding
300 mm Set the initial roll diameter (the maximum
diameter of an unwinding roll or the minimum
100 mm
diameter of a winding roll) with high accuracy.
Set the gear ratio of the unwinding roller (shaft)
with high accuracy.
Set a sampling time for the roll diameter
calculation.
Remarks