Tension Control Solutions - INVT Goodrive350 Series Operation Manual

Goodrive350 series high-performance multifunction VFD
Function
code
2nd-last fault
Output current at
P07.52
2nd-last fault
Bus voltage at
P07.53
2nd-last fault
Max. temperature at
P07.54
2nd-last fault
Input terminal status
P07.55
at 2nd-last fault
Output terminal
P07.56 status at 2nd-last

5.5.20 Tension control solutions

In many fields of industrial production, precise tension control is needed to maintain a constant output
tension of the drive equipment, in order to improve the quality of the products. In the winding and
unwinding of some industries such as paper processing, printing and dyeing, packing, wire and cable
manufacturing, textile, fiber, optic cable, leather, metal foil material processing and so on, tension
needs to keep constant.
The VFD controls the tension by regulating the motor output torque or speed. There are three modes
to control the tension: speed mode, open-loop torque mode and closed-loop torque mode.
5.5.20.1 Typical tension control applications for winding/unwinding
Unwinding in speed mode
Name
0.0–6300.0A
0.0–2000.0V
-20.0–120.0° C
0x0000–0xFFFF
0x0000–0xFFFF
fault
Tension feedback
Description
V
Traction
-131-
Basic operation guidelines
Default
value
0.0A
0.0V
0.0° C
0x0000
0x0000
Winding in torque mode