Mitsubishi Electric A800 Plus Series, Function Manual

Page: 59 / 242

Dancer feedback speed control details
58
DANCER FEEDBACK SPEED CONTROL
3.5
Dancer feedback speed control details
POINT POINT
• To enable the dancer feedback speed control and the winding diameter compensation function, turn ON the X114 signal and
set "40 or 41" in Pr.128 PID action selection . (When the X114 signal is OFF or "0" is set in Pr.128 , the dancer feedback
speed control and the winding diameter compensation function are disabled.)
• Dancer feedback speed control may be performed without using the winding diameter compensation (with the winding
diameter retained) for example for the intermediate shafts. In such cases, turn ON the X114 signal while the X115 signal is
ON or
Pr.1247 Winding diameter change increment amount limit = "9999" (no winding diameter calculation).
• For the X114 and X115 signals, assign the function by setting "114 (X114)" or "115 (X115)" in any of Pr.178 to Pr.189 (input
terminal function selection) .
3.5.1
Dancer feedback speed control function
selection
Select forward/reverse action for dancer feedback speed control.
Purpose Parameter to set
Refer to
page
To select forward/reverse action for
PID control
PID action selection P.R100 Pr.128
58
To select winding or unwinding for a
shaft Winding/unwinding
selection
P.R002 Pr.1230
59
To select the line speed command
input method Line speed command
input selection
P.R200 Pr.361
60
To select a unit of the line speed Line speed unit P.R201 Pr.358
60
To input the line speed command
using multi-speed setting Line multi-speed
setting
P.R230 to P.R244 Pr.1265 to Pr.1279
60
To calibrate the line speed
command value Line speed command
bias/gain P.R210 to P.R213,
P.R220 to P.R223
Pr.350 to Pr.357
60
To set the line speed command to
start operation Line speed command
for starting
P.R204 Pr.622
60
To calibrate the compensation value
added to the line speed command
value Line speed command
added compensation
value bias/gain
P.R214 to P.R217 Pr.635 to Pr.638
66
To set acceleration/deceleration
time to increase/decrease the line
speed command value
Acceleration/
deceleration time
selection for line speed
command
P.R253 to P.R256,
P.R250 to P.R252 Pr.100 to Pr.103,
Pr.393 to Pr.395
69
To detect malposition of the dancer
roll due to a fault such as a break
Dancer roll malposition
detection (break
detection)
P.A601, P.A602,
P.R160, P.R163 Pr.131, Pr.132,
Pr.137, Pr.425
74
To enable automatic tuning for
complex PI gain calculation
Tension PI gain tuning P.R170 to P.R176
Pr.1211, Pr.1215,
Pr.1217, Pr.1219,
Pr.1222, Pr.1223,
Pr.1226
76
To enable manual input of gains for
PID control
PID control gain setting P.R110 to P.R112
Pr.129, Pr.130,
Pr.134
84
Pr. Name Initial value
Setting
range
Description
128
R100
(A610)
PID action selection
0
0 Dancer feedback speed control invalid
40
Dancer feedback speed control valid
Reverse action
41 Forward action