Speed Control Of Intermediate Shafts; System Configuration Example - Mitsubishi Electric A800 Plus Series Function Manual

7
SPEED CONTROL OF INTERMEDIATE
SHAFTS
To control intermediate driving shafts (rollers between an unwinding roll and a winding roll), perform speed control by inputting
line speed commands.
7.1

System configuration example

M
FR-A800-R2R
FR-A8AP
Line speed
command
2 (Pr.361=3)
Dancer/tension
control selection
X114 (Pr.180=114)
Start signal
STF/STR
AM
Line speed
command
Tension control
selectiong
Line speed
command
Start command
Programmable
controller
Potentiometer
Dancer roll
Encoder
Intermediate shafts / speed control
Encoder
IM
FR-A800-R2R
FR-A8AP
114 (Pr.180 = 114)
2 (Pr.361 = 3)
STF/STR
Y237 (Pr.190 = 237)
Y238 (Pr.191 = 238)

SPEED CONTROL OF INTERMEDIATE SHAFTS

System configuration example
Maximum diameter
Dancer/tension control selection
Start signal
Dancer signal
Line speed command
Line speed detection
Actual line speed
FR-A800-R2R
2
Tension feedback
1
Inertia compensation
acceleration signal
X111
Inertia compensation
deceleration signal
X112
Start command
STF/STR
Tension control selection
X114
Stall mode trigger signal
X123
FR-A8AZ
Tension command
6
Minimum
diameter
Encoder
M
FR-A800-R2R
FR-A8AP
X114
STF/STR
1
2
Minimum
Maximum
diameter
diameter
Reduction gear
IM
Encoder
Vector control
FR-A8AP
Thermistor input
TH1
TH2
153
7