Mitsubishi Electric A800 Plus Series Function Manual page 77

Dancer feedback speed control details
3.5.10
Tension PI gain tuning
During dancer/tension feedback speed control, the PI gain is automatically set by changing the PID manipulated amount and
measuring the PID response.
PI gain automatic tuning facilitates setting of PID gain.
The tension PI gain tuning can be performed either while the system is stopped or in operation.
Pr. Name
554 PID signal operation
A604 selection
1211 Tension PI gain tuning
R171 timeout time
1215
Limit cycle output upper limit
R172
1217
Limit cycle hysteresis
R173
1219 Tension PI gain tuning start/
R170 status
1222
Target amplitude
R175
1223 Manipulated amount for
R174 operation
1226 Tension PI gain tuning
R176 response level setting
System configuration example
Lock the rolls.
76
DANCER FEEDBACK SPEED CONTROL
Setting
Initial value
range
0 0 to 3
50 s 1 to 9999 s
0% 0 to 100%
1% 0.1 to 10%
0
1
0
8
2, 3, 9, 12, 13,
90 to 96
0 to 100%
9999
9999
1% 0 to 10%
2 1 to 7
Potentiometer
Maximum diameter
Dancer roll
Dancer/tension control selection
Description
The action when the upper or lower limit for a measured
value input is detected or when a limit for the deviation
is detected can be selected.
Set the timeout time.
Set the output upper limit for the amount of positive
manipulation.
Set the hysteresis of the set point.
Tension PI gain tuning is not performed. (Read only)
Tension PI gain tuning starts.
Tension PI gain tuning is forcibly terminated.
Tuning status is indicated. (Read only)
Set the target amplitude for the limit cycle.
Tension PI gain tuning during a stop is diabled.
Set the amount for manipulation to fit the value to the
set point.
Set the response level.
M
FR-A800-R2R
FR-A8AP
X114
Start signal
STF/STR
Dancer signal
1
Minimum
diameter
Encoder
PID upper limit
FUP
PID lower limit
FDN