TECO F510 series - Page 343

4-254
The ASR integrator output can be disabled or limited. The ASR output is passed through a low-pass filter.
20-00
20-02
20-01
20-03
20-08
Frequency
Reference
20-13
20-14
20-17
20-18
Speed
Observer
20-09
20-11
20-10
20-12
Motor Voltage
Motor Current
P
P
I
I
I Limit
Speed
Observer
Feedback
Speed
Feedback
Compensator
LP Filter
Observer
Error
20-07 = 1 (during accel/decel)
20-07 = 0
Spee d Con trol Integral Re set
03-00 to 03-05 = 43
Primary
delay time
Torque
Limit
Torque
Reference
+
+
+
+
+
-
Figure 4.4.95 ASR block diagram (SLV mode)
ASR setting (SLV control mode)
In SLV mode the ASR gain is divided into a high-speed and low-speed section. The speed controller has a
high-speed gain 20-00/20-01 and a low-speed gain 20-02/20-03 that can be set independently.
a) The high/low switch frequency can be set with parameter 20-15 and 20-16. Similar to the ASR
gain, the speed estimator has a high-speed gain 20-09/20-10 and a low-speed gain 20-11/20-12.
b) The speed estimator has a low-pass filter to reduce the speed feedback interference, parameter
20-13 and 20-14 are active at high speed as well as low speed. The switch between the
high-speed and the low-speed is set by parameter 20-15 and 20-16.
c) 20-17 sets the low-speed compensation gain of the speed feedback.
d) 20-18 sets the high-speed compensation gain of the speed feedback.
e) When the frequency reference is rises above the value set in 20-16, the ASR gain used is set by
parameters 20-00 and 20-01.
f) When the frequency reference falls below the value set in 20-15, the ASR gain used is set by
parameters 20-02 and 20-03.
g) Gain time constant is adjusted linearly when the speed command falls within the range of 20-15 to
20-16, for a smooth operation.
Figure 4.4.96 ASR gain setting (SLV mode)