PLC for surface treatment equipment

Application

Object : Automation of a painting cabin (for cars). Ventilation and drying cycles control. PID regulation of the inside temperature (0 to 180°C). Maintenance management (replacement of filters, burners, ...).
Particularities :
* Sealed front face, operating in a disturbed environment.
* PLC programming by the user and possibility of "in site" modification.
* PLC linked to a PC (RS232 connection / Grafcet or conditional language).

Technical features

Power supply :
* 230 V / 50 Hz.
 Inputs :
* 8 capacitive inputs 220 VAC,
* 1 analog input for temperature (PT 100).
Inputs :
* 10 relays 220 VAC / 10 A.
Communication :
* 1 RS 232 link for the connection with the PC.
Dimension :
* 300 x 250 x 80 mm.

Components

* Microprocessor INTEL 80C31 + HCMOS basis,
* 10 relays 220 V / 10 A,
* 1 LCD display of 4 lines of 20 characters, 4 displays 7 segments,
* 4 mechanical keys.