Pi Control; Pd Control; Pid Control - Delta MS300 Series User Manual

CALL NOW 800-985-6929
 PI Control:
Controlled by the P action only, and thus, the deviation cannot be eliminated entirely. To
eliminate residual deviations, the P + I control will generally be utilized. And when the PI control
is utilized, it could eliminate the deviation incurred by the targeted value changes and the
constant external interferences. However, if the I action is excessively powerful, it will delay the
responding toward the swift variation. The P action could be used solely on the loading system
that possesses the integral components.
 PD Control:
When deviation occurred, the system will immediately generate some operation load that is
greater than the load generated single handedly by the D action to restrain the increment of the
deviation. If the deviation is small, the effectiveness of the P action will be decreasing as well.
The control objects include occasions with integral component loads, which are controlled by the
P action only, and sometimes, if the integral component is functioning, the whole system will be
vibrating. On such occasions, in order to make the P action's vibration subsiding and the system
stabilizing, the PD control could be utilized. In other words, this control is good for use with
loading of no brake functions over the processes.
 PID Control:
Utilize the I action to eliminate the deviation and the D action to restrain the vibration, thereafter,
combine with the P action to construct the PID control. Use of the PID method could obtain a
control Process with no deviations, high accuracies and a stable system.
Serial connection
Input Selec tion of the
PID Target Value
00-20: KPMS-LE01/
03-00~02=4 PID
Dis play of the PID feedbac k
00-04 =10 dis play of the
PID feedbac k
CALL NOW 800-985-6929
http://www.deltaacdrives.com
1
RS-485
2
08-00 0
target v alue
+
-
Input Selec tion
of the PID F eedbac k
08-00: AVI / ACI / PG
http://www.deltaacdrives.com
Chapter 12 Description of Parameter SettingsMS300
PID Canc elled
08-00=0
or 02-01~06=21(dis able)
08-00=0
≠
P D
Proportion Differential
Time
gain
08-01 08-03
I
08-02
08-04
Integral
upper limit
Time
for Integral
12.1-08-5
Email: info@deltaacdrives.com
PID
C om pensation
Selection
08-16
+
+
+
P ID
d i re c ti o n
08-21
08-09 Treatment of the F eedbac k Signal F ault
If Hz > 08-05 time ov er 08-08
Email: info@deltaacdrives.com
F requenc y
c ommand
PID D elay Tim e
08-07
08-05
PID F req.
output
limit