INVT Goodrive350A Series Operation Manual page 138

Goodrive350A series high-performance multifunction VFD
Function
code
Ramp reference
P07.50 frequency at 2nd-last
Output voltage at
P07.51
Output current at
P07.52
Bus voltage at 2nd-last
P07.53
Max temperature at
P07.54
Input terminal status at
P07.55
Output terminal status at
P07.56
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
2nd-last fault
fault
2nd-last fault
2nd-last fault
fault
2nd-last fault
2nd-last fault
2nd-last fault
Tension feedback
Description
0.00Hz–P00.03
0–1200V
0.0–6300.0A
0.0–2000.0V
-20.0–120.0° C
0x0000–0xFFFF
0x0000–0xFFFF
Traction
-133-
Basic operation guidelines
V
Winding in torque mode
Default
0.00Hz
0V
0.0A
0.0V
0.0° C
0x0000
0x0000