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Autómatas programables

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Heating control console for public transport vehicles

Application

Purpose : Driver's heating / defrosting function management console for public transport vehicles (bus, tram).

 

Presentation : control box with a back-lit keyboard-console with control keys for the main functions:

 

  • 5 ventilation level keys,
  • 5 heating level keys,
  • 2 flap direction keys,
  • 1 air recycling key,

 

Conception

Power supply :

 

  • 24 VDC, battery
  • Min 18 V
  • Max 32 V

 

 

Inputs :

 

  • 1 hot water detection
  • 1 air conditioning switch
  • 1 heating authorisation
  • 1 position light
  • 1 control station type
  • 1 heating valve position (potentiometer)

  

Outputs :

 

  • 1 NO heating request contact (10 mA DC)
  • 4 dry contact outputs (of which 3 doubled)
  • 1 output with motor polarity reversal air recycling,
    on-off control if there is an air recycling solenoid
  • 1 output with motor polarity reversal for the foot flap
  • 1 output with motor polarity reversal for the windscreen flap
  • 1 output with motor polarity reversal for the heating valve
  • 3 NO contact outputs, 100 mA / heating element
  • 1 5 amp permanent protected power supply.

  

Encombrement :

  • Console: 240 x 300 x 50 mm
  • Rear card: 250 x 350 mm

 

 

 

Composants

      • 8 bit 80C31 microprocessor
      • HCMos logic
      • Back-lit keyboard

       

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