Xinje VB3-20P7, Руководство пользователя

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V5 series inverter
80
Both the external reference signal and feedback signal have interferences, while these can be filtered by setting the time constant
of filter (P7.03 and P7.04), the longer the filter time, the better the immunity capability, but the slower the response; on the
contrary, the shorter the filter time , the worse the immunity capability, but the quicker the response.
If P7.01=0, the value set by P7.05 will be as the reference of close-loop control system. Therefore, you can modify the value of
P7.05 to change if via operation keyboard or serial port.
P7.06
～
P7.09 define the relationship curve of analog close-loop reference and expecting feedback.The reference value is
the percentage of real value of feedback corresponding to benchmark value (10V or 20mA), as shown in Fig.4-36.
Fig. Fig. Fig. Fig. 4-36 4-36 4-36 4-36 reference reference reference reference and and and and feedback feedback feedback feedback curve curve curve curve
The bigger the proportion gain KP, the quicker the response, while too bigger of it may lead to surge easily.
As only with proportiaon gian KP, deviation can not be eliminated, integral gain KI can be used to to form PI control to
eliminate the deviation. The bigger of the Ki, the quicker the response of changing deviation, while too big of the Ki may lead
to surge easily.
Sampling cycle T is the sampling cycle of feedback value.PI regulator calculate once in every sampling clcle, the longer the
cycle , the slower the response.
The max deviation value of close-loop reference is shown in Fig.4-37, if the feedback value is within this range, PI regulator will stop
operation. This function is useful to improve accuracy and stability of the system.
P7.05
P7.05 P7.05
P7.05 Set
Set Set
Set reference
reference reference
reference in
in in
in digital
digital digital
digital mode
mode mode
mode Range
Range Range
Range
：
0.00
0.00 0.00
0.00
－
10.00V
10.00V 10.00V
10.00V 0.00V
0.00V 0.00V
0.00V
P7.06 P7.06 P7.06 P7.06 Min Min Min Min reference reference reference reference Range Range Range Range
：
0.0 0.0 0.0 0.0
－
Max Max Max Max reference reference reference reference 0.0 0.0 0.0 0.0
％
P7.07
P7.07 P7.07
P7.07
Feedback
Feedback Feedback
Feedback value
value value
value corresponding
corresponding corresponding
corresponding to
to to
to min
min min
min
reference
reference reference
reference
Range
Range Range
Range
：
0.0
0.0 0.0
0.0
－
100.0(%)
100.0(%) 100.0(%)
100.0(%) 0.0
0.0 0.0
0.0
％
P7.08 P7.08 P7.08 P7.08 Max Max Max Max reference reference reference reference Range Range Range Range
：
min min min min reference reference reference reference -100.0( -100.0( -100.0( -100.0(
％
)))) 100.0% 100.0% 100.0% 100.0%
P7.09 P7.09 P7.09 P7.09
Feedback Feedback Feedback Feedback value value value value corresponding corresponding corresponding corresponding to to to to max max max max
reference reference reference reference
Range Range Range Range
：
0.0% 0.0% 0.0% 0.0%
－
100.0( 100.0( 100.0( 100.0(
％
)))) 100.0% 100.0% 100.0% 100.0%
P7.10 P7.10 P7.10 P7.10 Proportion Proportion Proportion Proportional al al al gain gain gain gain KP KP KP KP Range Range Range Range
：
0.000~9.999 0.000~9.999 0.000~9.999 0.000~9.999 0.050 0.050 0.050 0.050
P7.11 P7.11 P7.11 P7.11 Integral Integral Integral Integral gain gain gain gain KI KI KI KI Range Range Range Range
：
0.000~9.999 0.000~9.999 0.000~9.999 0.000~9.999 0.050 0.050 0.050 0.050
P7.12 P7.12 P7.12 P7.12 Sampling Sampling Sampling Sampling cycle cycle cycle cycle T T T T Range Range Range Range
：
0.01 0.01 0.01 0.01
－
10.00S 10.00S 10.00S 10.00S 1.00S 1.00S 1.00S 1.00S
P7.13 P7.13 P7.13 P7.13 Limits Limits Limits Limits of of of of deviation deviation deviation deviation
Range
Range Range
Range
：
0.0
0.0 0.0
0.0
－
20.0(
20.0( 20.0(
20.0(
％
)))) 2.0(
2.0( 2.0(
2.0(
％
))))