HNC Electric HV480 Series, Руководство пользователя

Страница: 114 / 179

110
Figure 5 - 30 functional diagram of PID initial value
FA - 23 twice output deviation positive maximum 0.00%
～
100.00%
【
1.00%
】
FA - 24 twice output deviation reverse maximum 0.00%
～
100.00%
【
1.00%
】
This function is used to limit the difference between the two beats (2 ms / beat) of the PID output so as to
prevent the PID output from changing too fast and stabilize the operation of the frequency inverter.
FA - 23 and FA - 24 respectively correspond to the maximum absolute value of the output deviation in forward
and reverse directions.
FA - 25 PID integral attribute 00
～
11
【
00
】
Bit: PID integral separation
0: invalid.
No matter what kind of state, Ti integral of PID plays a role.
1: valid.
When the multifunctional digital X - terminal integral pause (function 22) is valid, the integral PID integral of the
PID stops the operation, and at this time the PID only has proportional and differential effects.
Ten digits: whether to stop integrating after outputting to the limit value.
0: continue to score.
When the PID outputs to the upper limit frequency or the lower limit frequency, the integral calculation will
continue.
1: stop points.
When the PID is output to the upper limit frequency or the lower limit frequency, the calculation of the PID
integral will stop at this time, which may help to reduce the overshoot of the PID.
FA- 26 PID feedback loss detection value 0.1%
～
100.0%
【
0.0%
】
FA - 27 PID feedback loss detection time 0.0s
～
20.0s
【
0.0s
】
When FA - 26 = 0.0, PID does not judge that feedback is lost;
When FA - 26 is not 0, when the PID feedback amount is less than the feedback loss detection value FA - 26 and
the duration exceeds the PID feedback loss detection time FA - 27, the frequency inverter alarms the fault pidf and
processes it according to the selected fault processing method.
PID output
Time
Initial value
FA-21
FA- 22 initial value
maintenance time