Idex Pulsafeeder MPC Vector, Installation, Operation & Maintenance Manual

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8.6 Tuning the Control Algorithm
This option should only be used by control systems engineers who are familiar with tuning PID loops. This is
not intended for the casual user. Changing these values may result in the system oscillating without settling
on the set point or never reaching the set point at all. See Section 21, Appendix 2 for more information and
theory on PID control.
The MPC VECTOR allows users to tune the motor control algorithm to speed up or slow down the MPC VECTOR
set point response time. This is done by adjusting the PID Controller parameter coefficients.
The user may adjust the Proportional coefficient, k
p
, the Integration coefficient, k
i
, and the Derivative coefficient,
k
d
, independently. The user may also view and modify the sampling period of the control loop, t
s
.
Modifying the PID coefficients
1. The starting display will be:
S E T P T X X . X X X
F L O W X X . X X X
2. Press the MENU key.
- M E N U -
C A L I B R A T I O N
3. Press the UP arrow key.
- M E N U -
S Y S T E M S E T U P
4. Press the ENTER key.
S Y S T E M S E T U P
S T A T U S
5. Press the DOWN.
S Y S T E M S E T U P
P I D P A R A M E T E R S
6. Press the ENTER key.
P I D P A R A M E T E R S
C O E F F I C I E N T S
7. Press the ENTER key.
P R O P O R T I O N A L
X . X X X