Chapter 4 Parameters
4-160
Fre quen cy
The limit o f
de cel. time
frequ ency calcu la ted by PID
ou tpu t
frequ ency
Time
The limit o f
acce l. time
10 .16
W ake up
Fre quen cy
10 .15
Sleep
Fre quen cy
01 .05
Min. Output
Fre quen cy
10 .14 Slee p/w ak e up detection time
Fmin
Fsleep
Fcmd=0
Fout = 0
lower bound
of frequency
Fmin<Fsleep<
lower bound
of frequency
When Pr. 01.05min. output frequency
≦
PID frequency (H)
≦
Pr.01.08 lower bound of
frequency and sleep function is enabled (output frequency (H) < Pr.10.15 sleep frequency and
time > Pr.10.14 detection time), frequency will be 0 (in sleep mode). If sleep function is
disabled, output frequency(H) = Pr.01.08 lower bound frequency.
NOTE
The common adjustments of PID control are shown as follows:
Example 1: how to have stable control as soon as possible?
Please shorten Pr.10.03 (Integral Time (I)) setting and increase Pr,10.04(Differential Control (D))
setting.
Response
Time
before adjustment
after adjustment
