46
Unidrive M200-201 Quick Start Guide
Issue Number: 7
This parameter indicates the status of the user program in the drive. For further information, refer to
the
Control User Guide.
Defines the proportional gain for frequency controller 1.
RFC modes only.
The controller includes a feed forward proportional gain (Kp), a feed forward integral gain (Ki), and a
differential feedback gain (Kd).
Proportional gain (Kp)
If Kp is non-zero and Ki is zero the controller will only have a proportional term, and there must be a
frequency error to produce a torque reference. Therefore as the motor load increases there will be a
difference between the reference and actual frequencies.
Integral gain (Ki)
The integral gain is provided to prevent frequency regulation. The error is accumulated over a period
of time and used to produce the necessary torque reference without any frequency error. Increasing
the integral gain reduces the time taken for the frequency to reach the correct level and increases the
stiffness of the system, i.e. it reduces the positional displacement produced by applying a load torque
to the motor.
Defines the integral gain for frequency controller 1. See
Frequency Controller Proportional Gain Kp1
(Pr
65
).
Defines the time constant for the filter applied to the output of the frequency estimator system.
60
OUP Status
RO
Num
ND
NC
PT
OL
Ú
-2147483648 to 2147483647
Ö
RFC-A
65
Frequency Controller Proportional Gain Kp1
RW
Num
US
OL
Ú
Ö
RFC-A
0.000 to 200.000 s/rad
0.100 s/rad
66
Frequency Controller Integral Gain Ki1
RW
Num
US
OL
Ú
Ö
RFC-A
0.00 to 655.35 s
2
/rad
0.10 s
2
/rad
67
Sensorless Mode Filter
RW
Txt
US
OL
Ú
Ö
RFC-A
4 (0), 5 (1), 6 (2), 8 (3), 12 (4),
20 (5) ms
4 (0) ms
