Watlow 8LS Controller Manual de usuario descargar pdf (Pagina 83)

Tuning and Control

8LS User’s Guide 75

Tuning and Control

Introduction

This chapter explains PID control and supplies some starting PID values

and tuning instructions, so that you can use control parameters

appropriate for your system. If you would like more information on PID

control, consult the Watlow Anafaze

Practical Guide to PID

The control mode dictates how the controller responds to an input

signal. The control mode is different from the type of control output

signal (like analog or pulsed DC voltage). There are several control

modes available: On/Off, Proportional (P), Proportional and Integral

(PI), Proportional with Derivative, and Proportional with Integral and

Derivative (PID). P, PI, or PID control are necessary when process

variable (PV) cycling is unacceptable or if the process or setpoint (SP) is

variable.

NOTE

For any of these control modes to function, the

loop must be in automatic mode.

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 139 140

Sin comentarios

Watlow 8LS Controller Manual de usuario Pagina 83