MPXPRO00000
MPXPRO Series • Refrigeration Controller
Quick Info
Output Functions
Complete refrigeration controller with EEV superheat control
Technical Specifications
Display & Interface
| Display Type | LCD |
| Display Digits | 4 |
| Buttons | 5 |
| LED Indicators | Comp, Defrost, Fan, Alarm, Valve |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 115-230V AC |
| Frequency | 50/60Hz |
| Power Consumption | 10VA |
Sensor Inputs
| Probe Inputs | 4 |
| Probe Type | NTC/PT1000/4-20mA |
| Temp Range | -50 to 150°C |
| Accuracy | ±0.2°C |
Relay Outputs
| Relay Outputs | 4 |
| Relay Rating | 8A/250VAC |
Physical
| Panel Size | 71x29 mm |
| Depth | 75 mm |
| IP Rating | IP65 (front) |
| Weight | 180 g |
Operating Conditions
| Operating Temp | -10 to 60°C |
| Storage Temp | -20 to 70°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| L | Power L | Input |
brown
|
| N | Power N | Input |
blue
|
| B1 | Room Temp | Input |
red/white
|
| B2 | Evap Temp | Input |
red/white
|
| B3 | Suction Temp | Input |
red/white
|
| Pe | Pressure 4-20mA | Input |
gray
|
| EEV | Stepper Valve | Output |
various
|
| K1 | Compressor | Output |
black
|
| K2 | Defrost | Output |
orange
|
| K3 | Fan | Output |
green
|
| K4 | Alarm | Output |
red
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| St | Setpoint | -50 to 150 | 0 °C | Room setpoint |
| SH | Superheat Setpoint | 0 to 30 | 10 K | Superheat reference |
| rd | Differential | 0.1 to 20 | 2 °C | Room control diff |
| P1 | SH P Gain | 0 to 100 | 30 % | Proportional gain |
| I1 | SH I Time | 0 to 600 | 60 sec | Integral time |
| OL | Valve Min Open | 0 to 100 | 10 % | Minimum opening |
| OH | Valve Max Open | 0 to 100 | 100 % | Maximum opening |
| rF | Refrigerant | 0-20 | 7 | Refrigerant type |
| d0 | Defrost Type | 0-4 | 1 | Defrost method |
| d1 | Defrost End | 0 to 50 | 8 °C | Termination temp |
Error Codes
Solution: Check B1
Solution: Check B2
Solution: Check B3
Solution: Check Pe transducer
Solution: Check valve and charge
Solution: Check valve operation
Solution: Check EEV wiring
Frequently Asked Questions
Set rF: 7=R404A, 8=R507A, 9=R134a, 10=R407C, 11=R410A
Adjust P1 for faster response, I1 for stability
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Carel
Country: Italy