Microprocessor control system (SATREC-MMA01)
The SATREC-MMA01 micro-controller is a flexible command system for electrical traction equipment. The system is built within a 19" double Eurocard rack, having 14 electronical cards connected through a backplane.
technical specifications
  Input voltage: 24Vdc (-30%...+25%)
  Output voltage: ±15Vdc, +5Vdc, +24Vdc (filtered)
  Mean current: 2A
  Maximum current: 5A
  Temperature range: -30°C..+70°C
  IP20 protection degree
basic functions
  control - monitors the equipment status and sends commands to it
  regulator - commands sent to the electrical power drive of the traction motor
  communication - internal (on bus) and external (RS232/RS485 with ADT07 and a PC)
  diagnosis - collecting and storing significant data about system status
  metering - consumed and recovered energy, covered distance, compressor hours
  8 bits Philips 80C552 microprocessor
  "Master-Slave" type command system (2 processors)
  16 digital inputs/outputs on every inputs(3)/outputs(2) card
  12 analog inputs, 1 analog output
  3 digital counters (pulse counters)
  4 pulse channels (60Vdc)
  Pulse command through optical fiber
  Protections for 3 analog channels
  RS232/RS485 communication ports
  Two-digits display for error codes and system status
  Non-volatile events memory (holding time: 10 years)
  Non-volatile trace memory (last 1000 km)
  "Black-Box" function, monitoring 12 parameters
  Real-time clock
  L x l x h = 482 x 240 x 265 mm
  weight = 10 ± 1 kg
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