MP-5000 Controller

The MP-5000 is an advanced microprocessor controller. It has been specially developed for the control and monitoring of refrigeration units.

Parent topic: Controller Description

Back-up Batteries

The MP-5000 has a Back-up Battery. This will allow the controller to be energized if the unit is not connected to shore power. The technician can change settings in the controller - Setpoint, etc.

Press the ENTER key, the controller will energize and stay energized for 60 sec, by pressing any of the Menu keys the 60 sec timer will reset to 20 sec.

Input and Output Signals

The MP-5000 microprocessor controls all unit functions to maintain the cargo at the proper temperature. The controller also monitors and records system faults and performs pretrip.

The MP-5000 controller uses advanced solid-state integrated circuits and contactors to monitor and control unit functions. The controller monitors inputs from:

  • Return Air Sensor

  • Ambient Sensor

  • High Pressure Cutout Switch/Discharge Pressure Sensor

  • Voltage measuring circuits

  • Supply Air Sensor

  • Humidity Sensor

  • Low Pressure Cutout Switch/Suction Pressure Sensor

  

  • Evaporator Coil Sensor

  • USDA (Probe) Sensors 1, 2, and 3

  • Phase measuring circuits

  

  • Condenser Coil Sensor

  • Compressor Discharge Temperature Sensor

  • Current measuring circuits

  

Output signals from the controller automatically regulate all unit functions including:

  • Compressor operation

  • Compressor digital valve

  • Electric heaters

  • Condenser fan operation

  • Vapor injection valve

  • Phase selection

  • Evaporator fan motor operation

    

1 Standard Display    
2 Function Keys    
3 On/Off Switch