MA7200 PLUS Operating Manual
TECO – Westinghouse Motor Company App-2 Fan and Pump
key 3 times
Flashing
1 - Press the
2 - Press the
3 - Press the
key until display shows
4 - Press the
key
key
key to
6 - Press the
key 5 times
7 - Press the
2 Seconds
8 - Press the
key to return to the main display.
Flashing
0
key twice
Flashing
0
5 - Press the
5
Flashing
5
(Minimum motor speed)
2.7 Setting Up a Simple Main PID Loop
In this section the setting up of a simple PID loop will be covered. The purpose here, is to familiarize the user with the
various parameters that are used in the PID set up. The PID method of control covered will consist basically of a
set-
point
(operating point, e.g. Flow, Pressure etc.) entered through the keypad (
Sn-05=0 Factory Default
) and a 0-10V
analog transducer
feedback
signal (Sn-24=0) connected to the control terminals. These two signals are then
compared, and through PID processing, correct for any load or environmental changes to maintain the
set-point
. Only
the
(P)
proportiona
l and
(I)
integra
l parameters will be set and adjusted through the keypad to optimize performance.
The parameter
(D)
derivative
will not be discussed or used in this guide as the factory setting is usually sufficient for
Fan and Pump applications.
Note- Although this PID setup procedure is mainly for Fan and Pump control it can be applied to any PID
set-up
Cont.
