Tension Control; Dedicated Function List; System Configuration Example - Mitsubishi Electric FR-A700-A1 Instruction Manual

4

TENSION CONTROL

4.1 Dedicated function list

Item
Taper function
Inertia compensation function
Tension
control
Mechanical loss compensation
Dedicated input signal
Common
Dedicated output signal
Dedicated monitored item
Refer to page 32 for the winding diameter compensation function.

4.2 System configuration example

Main speed command
Start command
PLC
Set a taper ratio.
Compensates the inertia during acceleration and during deceleration separately
using external signals.
Interpolates linearly against the speed (with 5 break points).
function
Dancer/tension control selection, inertia compensation acceleration, inertia
compensation deceleration, inertia compensation second acceleration/
deceleration time selection, winding diameter measurement, stall operaion
Winding diameter calculation completion
Tension command, mechanical loss compensation, inertia compensation
Middle shaft / speed control
Encoder
IM
FR-A700
FR-A7AP
2
STF/STR
Description
Line speed detection
Line speed
4
Start command
STF/STR
Dancer/tension control selection
X83
Inertia compensation
acceleration signal
X57
Inertia compensation
deceleration signal
X58
Stall operation signal
X92
Speed limit
2
Torque command
6

Dedicated function list

Minimum diameter
Maximum diameter
Reduction gear
Encoder
IM
Vector control
FR-A700-A1
FR-A7AP
FR-A7AZ
4
55