User Manual of A90 Series Inverter
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torque control).
F13.08=6 or 7: communication setting
The torque depends on the communication and the like.
If the master-slave communication (F10.05=1) is enabled and the inverter works
as the slave (F10.06=0), the upper frequency limit is “700FH (master-slave
communication setting) * F10.08 (slave receiving proportional coefficient) *
F00.18 (upper frequency limit)”, and the 700FH data range is -100.00% to
100.00%, as detailed in Table 0-2.
For general communication (F10.05=0):
a.
F13.08=6: the upper frequency limit is “700BH (communication percentage
setting of the upper frequency limit of torque control) * F13.09 (upper frequency
limit of torque control)”;
b.
F13.08=7: the upper frequency limit is “7018H (communication setting of the
upper frequency limit of torque control)”.
The 700BH data range is 0.00% to 200.00%, and the 7018H data range is 0.00 to
F00.16 (maximum frequency), as detailed in Table 0-2.
The upper frequency limit of torque control is used to set the maximum forward
or reverse running frequency of the inverter in the torque control mode.
In the torque control mode, if the load torque is less than the output torque of the
motor, the motor speed will rise continuously, and the maximum speed of the motor
must be limited during torque control to prevent the mechanical system from galloping
and other accidents; if the load exceeds the output torque of the motor and even the
motor is drive to run reversely, the maximum operating load frequency of the motor is
still restricted in the case of F13.19=1 and not restricted in the case of F13.19=0.
The upper frequency limit of reverse running is dependent on F13.09 * F13.18.
Example: The torque is set to be positive and the upper frequency limit of torque
control is the AI1 analog input. When the AI1 analog input is positive, the upper frequency
limit corresponding to the forward speed limit is AI1 (percentage) * F13.09 and that
corresponding to the reverse speed limit is AI1 (percentage) * F13.09 * F13.18; and when
the AI1 analog input is negative, the upper frequency limit corresponding to the forward
