Mitsubishi Electric A800 Plus Series Function Manual page 46

5
Mechanical specifications setting
Set the following parameters according to the specifications of the machine used. Refer to 10.4 (Application
examples) on page 199.
Pr. Name
1235 Maximum winding diameter 1
1236 Minimum winding diameter 1
178
to Input terminal function selection
189
1230 Winding/unwinding selection
Winding diameter storage
645
selection
Winding diameter change
1247
increment amount limit
Gear ratio numerator (follower
1243
side)
Gear ratio denominator (driver
1244
side)
7 Acceleration time
8 Deceleration time
First acceleration time for line
394
speed command
First deceleration time for line
395
speed command
Second deceleration time for
101
line speed command
Line speed command
393 acceleration/deceleration
reference
1231 Material thickness d1
1252 Dancer lower limit position
1255 Accumulated amount
∗1
Set the parameter according to the specification of the machine used.
∗2
The increment applies when Pr.21 = "0 (initial value)".
∗3
The increment applies when Pr.358 = "0 (initial value)".
6
Dancer signal input setting
Set the following parameter according to the dancer signal input method when the dancer roll is used.
Pr. Name
Dancer / tension sensor
363
feedback input selection
∗1
The input specification in the initial setting is indicated. (Refer to
Parameter setting procedure for dancer feedback speed control
Intermediate
Setting
shaft

∗1

∗1
114 
109 —
117 —
—
∗1
—
∗1

∗1

∗1

∗1
0 s 
0 s


∗1

∗1

∗1

∗1
—
∗1
—
∗1
—
∗1
Setting
3
4
5
6
9999 (initial value)
page 43.)
DANCER FEEDBACK SPEED CONTROL
Winding/
unwinding
shaft
For the intermediate shaft, set the

roller (reel) diameter in millimeter in

both Pr.1235 and Pr.1236.
 Set "114" for the X114 signal.
Set "109" for using the Stored

winding diameter clear (X109) signal.
Set "117" for using the Winding length

clear (X117) signal.
0: Winding shaft

1: Unwinding shaft
0: Not stored.

1: The present roll diameter is stored.
Set the maximum change in 0.001
 mm increments per roll diameter
calculation.

Set a gear ratio when the motor shaft
has a reduction gear. (The increment
is 1 for each parameter.)


—

Setting is required in 0.1 second

increments when the cushion time is
not considered for the line speed

command
∗2
Set the time in 0.1 second increments
as required (for example, for rapid

deceleration)
signal to enable the setting.
Set the reference line speed (travel
amount per minute) in 0.1 m
 increments for the acceleration/
deceleration time for the line speed
command
∗3
Setting is required in 0.001 mm
 increments when thickness is used
for winding diameter calculation.
Setting is required when the initial roll

diameter calculation is necessary for
dancer feedback speed control
 (0.01% increments for Pr.1252, 1 mm
increments for Pr.1255).
Input method
Terminal 2 (analog value: 0 to 100%) (0 to 5 VDC)
Terminal 4 (analog value: 20 to 100%) (4 to 20 mADC)
Terminal 1 (analog value: -100 to 100%) (0 to ±10 VDC)
Terminal 6 (FR-A8AZ) (analog value: -100 to 100%) (0 to
±10 VDC)
∗1
No function
Remarks
.
3
. Turn ON the X105
∗2
.
∗1
∗1
∗1
45