Veichi AC90 Manual page 115

AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
Run order
Output
frequency
Static friction cutoff frequency
Give torque
Static friction compensation value
Static friction
compensation
Static friction compensation value
Sliding friction
compensation
Moment of inertia
compensation
Actual output
torque
Zero-speed torque keep selection in the
F7.21
torque control mode
LED "0"digit: Zero-speed torque keep set channel
0: Torque setting Motor output torque is setting torque while inverter running frequency is 0Hz
1: F1.27 setting Motor output torque is setting torque while inverter running frequency is [F1.27]
LED "00"digit: Zero-speed torque keeps time set
0: Zero-speed continue valid
only at stop or running frequency is bigger than 0Hz
1: Zero-speed valid in F1.28 time
LED "000"digit: Reserved
LED "00"digit: Reserved
Note: This parameter is valid only under torque control or tension open loop control under torque control
mode. Under speed mode, zero speed torque keep function is decided by [F1.27]-[F1.28]
F7.22 Zero speed slip frequency settings
Zero speed slip frequency settings: Right setting can keep stable tension while motor is zero speed (stall)
While give torque is fixed, if this value increases, zero speed tension will increase. It will be more stable. If this value
decreases, zero speed tension will decrease. It will be more not stable.
Torque control upper frequency limit
F7.23
selection
Torque control upper frequency limit selective: Torque control takes the motor torque as control aim. The frequency
or speed increase or decrease is decided by the difference between the set torque and the load torque. However, in
order to prevent stall, the output frequency limit is very necessary. Under torque mode, the inverter can be achieved to
set torque and frequency limits separately. Torque is set by the torque give channel. Frequency limits set by the
frequency give channel, but also limited by the upper frequency limit. This parameter is used to select the upper
frequency limit give source under torque control.
ON
Run order
Compensation ACC time
output torque and compensation relationship
Inverter continually output torque at zero frequency and stop zero frequency torque
Inverter output torque time is controlled by [F1.28]
Static friction cutoff frequency
Static friction compensation value
Static friction compensation value
Compensation ACC time
Setting range:0000-0011
Setting range:0.0-5.00Hz
Setting range:0000-2660
110
Function Parameter specifications
ON
Run frequency
Factory set:0010
Factory set:1.00
Factory set: 0000