SY351 · PID Digital Controller

PID Digital Controller

Features

P, PI, PD, and PID control modes with independent element switching
Dual input summing point for reference and controlled variables
Output summing point for disturbance variable addition/subtraction
Manual parameter adjustment via encoders and digital display
Anti-windup limiter on integrator, adaptive smoothing on differentiator

Schematic diagram of the SY351 apparatus

4mm safety sockets

+15V DC line

extra line for added flexibility

Integrator reset input

Non-inverted inputs

±10V

Inverted input

±10V

Control error output

0V line (ground)

-15V DC line

Overshoot indicator lamp

Output (±10V)

P, I, D control panels

potentiometer & display each

Schematic diagram of the SY351 apparatus

Technical Specifications

Supply voltage ±15V DC

Signal voltage range -10V to +10V

Sampling interval 50 µs

Proportional gain (Kp) 0.01 to 100

Integration time (Ti) 10 ms to 1000 s

Derivative time (Td) 1 ms to 100 s

Control modes P, PI, PD, PID (elements switchable)

Integrator Anti-windup limiter with reset input

Differentiator Adaptive smoothing, internal slope limiter

Display Three 7-segment displays

Part of package

Process Control Training System

A complete modular platform for hands-on learning of feedback control, PID tuning, and process dynamics using real thermal, fluid, and mechanical systems.

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