Best E5 Series User Manual page 137

E5 User Manual
P32.00
ASR high-speed
P32.01
proportional gain Kp1
ASR high-speed
P32.02
integration time Ti1
ASR low-speed
P32.03
proportional gain Kp2
ASR low-speed integration
P32.04
P32.05 ASR switching frequency 1
P32.06 ASR switching frequency 2
Under sensor-less vector control (SVC), motor speed is kept at set value by automatic speed
regulator (ASR). ASR parameters should be set in P32.01~P32.06.
The proportional gain Kp and integration time Ti of ASR can be set through
P32.01~P32.04 so as to change the speed response characteristic under SVC.
Increment of proportional gain Kp can bring in fast response of the system. However,
bigger Kp value will bring about larger system oscillation.
Reduction of integration time Ti can also quicken response time, but small Ti value will
result in big system overshooting and may easily bring about oscillation.
Principle for adjustment of proportional gain Kp and integration time Ti: proportional gain
Kp is usually adjusted prior, maximizing Kp at the premise of ensuring the system is subject to
no oscillation, and then adjust integration time Ti to provide the system with both instant
response characteristic and less overshooting.
P32.01~P32.02 are the proportional gain and integration time of the drive at high speed.
P32.03~P32.04 are the proportional gain and integration time of the drive at low speed.
Distinction between high speed and low speed is determined by P32.05~P32.06. The
diagram is as shown in Fig. 5-41.
ASR KP
P32.03
P32.01
Fig. 5-41
0
Reserved
time Ti2
Frequency
P32.05 P32.06
Reserved
Range: 0.0~20.0
Range: 0.000s~8.000s
Range: 0.0~20.0
Range: 0.000s~8.000s
Range: 0.00Hz~P32.06
Range: P32.05~upper limiting
frequency
ASR KI
P32.04
P32.02
0 P32.05 P32.06
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Chapter 5 Specification of Parameters
Reserved
Factory default:
Factory default:
0.200
Factory default:
Factory default:
0.200
Factory default:
5.00Hz
Factory default:
10.00Hz
Frequency
2.0
2.0