4-220
The following figure an overview of the automatic speed regulator (ASR) block.
SLV control mode:
(1)
The ASR function adjusts the output frequency to control the motor speed to minimize the
difference between the frequency reference and actual motor speed.
(2)
The ASR controller in SLV mode uses a speed estimator to estimate the motor speed. In order
to reduce speed feedback signal interference, a low-pass filter and speed feedback
compensator can be enabled.
(3)
The ASR integrator output can be disabled or limited. (03-00 to 03-05= 43). The ASR output is
passed through a low-pass filter.
Figure 4.3.108 ASR speed control diagram (SLV mode)
ASR Setting (SLV/PMSLV control mode)
(1)
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. The switch between the high-speed and the low-speed is set by parameter
20-15 and 20-16.
(2)
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.
(3)
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.
(4)
20-17 sets the low-speed compensation gain of the speed feedback.
(5)
20-18 sets the high-speed compensation gain of the speed feedback.
(6)
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. 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. Gain time constant is adjusted linearly
when the speed command falls within the range of 20-15 to 20-16, for a smooth operation.
Summary of Contents for E510-201-SH
Page 1: ......
Page 28: ...3 14 b 200V 2HP 1 3PH 200V 3HP 20HP 400V 3HP 25HP IP20 NEMA1 ...
Page 29: ...3 15 c 200V 25HP 400V 30HP d 200V 30HP 40HP 400V 40HP 75HP ...
Page 51: ...3 37 3 5 Standard Wiring 10V AI1 AI2 AGND E P P ...
Page 72: ...4 6 4 1 4 Example of keypad operation Example 1 Modifying parameters ...
Page 74: ...4 8 4 1 5 Operation control ...
Page 206: ...4 140 Acceleration Deceleration calculation of mode 2 ...
Page 316: ...4 250 6 Timer mode 6 FLASH Timer mode 2 7 Timer mode 7 FLASH Timer mode 3 ...
Page 424: ...REVISIONS Date Manual Number Revision May 2017 4KA72X645T01 First edition ...
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