System Components

1, the system needs a control center

Features:

◆ Monitor the operation of the entire reflow soldering machine.

◆ Perform regular setup and control operations.

◆ Execution management function, responsible for the scheduling, distribution, and arrangement of all work parts, so that it runs well.

2. The tasks completed by the system

◆ Perform regular or scheduled monitoring functions; such as: temperature detection, adjustment and control, transmission speed, direction detection and control.

◆Automatic detection function, automatic ultra-low temperature sound and light alarm function.

◆ Directly and quickly achieve control and analysis functions.

◆The system adopts double-sided heating technology to reduce the bending deformation of PCB board and has high requirements for temperature control accuracy.

3, system requirements

◆Input channel of signal feedback (signal acquisition)

◆Switch output channel (control SSR)

◆ Serial output control inverter (control the speed of the conveyor belt)

◆ Analog output (control hot air blower, achieve temperature control)

◆ Analog input (thermocouple signal input)

Reflow design

In order to achieve all the above functions, and hope to obtain the comprehensive effect of high reliability, high stability and strong anti-interference ability of the whole control system, we finally chose EVOC special computer plus automation board to form IPC+SSR system. It realizes all temperature detection and control in reflow soldering, mechanical transmission direction and speed control, temperature alarm, N2 concentration detection and other parameters control.