Veichi AC90 Manual page 114

AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
200% torque
Upper output
torque limit
Lower output
torque limit
F7.14 FWD/REV dead time
Waitting time at 0.0% torque while change torque direction.
F7.15 Static friction compensation
F7.16 Static friction cutoff frequency
Static friction compensation: It compensates the static friction while system starts up.
Static friction cutoff frequency: While unwinding frequency is bigger than this value. The static friction compensation
is cancelled.
F7.17 Sliding friction compensation
Sliding friction compensation: It compensates the sliding friction of the whole system in running. Increase this value to
improve tension while material tension is not enough.
F7.18 Moment of inertia compensation
Moment of inertia compensation
F7.19
input ACC time
Moment of inertia compensation
F7.20
input DEC time
Moment of inertia compensation: This value is used to compensate the moment of inertia of rotating bodies, such as
motor, transmission system, scrolls and others in acceleration. During deceleration, it compensates reverse torque to
the system to ensure the tension balance in slow down process. The moment of inertia is direct ratio to the rotating
body quality and rotation acceleration. Moment of inertia is greater when the system acceleration is greater. It is smaller
when the system acceleration is smaller. In winding process, if material tension is not enough in acceleration,then
increase this value, otherwise decrease the value.
Moment of inertia compensation input ACC time:Moment of inertia compensates time for ACC from 0.0% to 200.0%
Moment of inertia compensation input DEC time:Moment of inertia compensates time for DEC from 200.0% to 0.0%
Torque
Torque ACC time
Upper/lower torque limit and torque ACC/DEC time relationship
Setting range: 0.00-650.00s
Setting range: 0-200.0%
Setting range: 0.00-50.00Hz
Setting range: 0-200.0%
Setting range:0-200.0%
Setting range:0.0-6000.0s
Setting range:0.0-6000.0s
109
Function Parameter specifications
Output torque
Torque DEC time
Order
Factory set: 0.00s
Factory set: 0
Factory set: 10.00Hz
Factory set: 0
Factory set: 0
Factory set: 0
Factory set: 0