MasterCella
MasterCella Series • Refrigeration Controller
Quick Info
Output Functions
Complete small cold room controller with HMI
Technical Specifications
Display & Interface
| Display Type | LCD |
| Display Digits | 4 |
| Buttons | 6 |
| LED Indicators | Comp, Defrost, Fan, Alarm, Light |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 100-240V AC |
| Frequency | 50/60Hz |
| Power Consumption | 8VA |
Sensor Inputs
| Probe Inputs | 4 |
| Probe Type | NTC/PT1000 |
| Temp Range | -50 to 90°C |
| Accuracy | ±0.3°C |
Relay Outputs
| Relay Outputs | 5 |
| Relay Rating | 16A (K1) / 8A (K2-K5) |
Physical
| Panel Size | 119x83 mm |
| Depth | 50 mm |
| IP Rating | IP65 (front) |
| Weight | 250 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 | Condenser Temp | Input |
red/white
|
| B4 | Aux Temp | Input |
red/white
|
| DI1 | Door Switch | Input |
gray
|
| DI2 | HP Switch | Input |
gray
|
| DI3 | LP Switch | Input |
gray
|
| K1 | Compressor | Output |
black
|
| K2 | Defrost | Output |
orange
|
| K3 | Evap Fan | Output |
green
|
| K4 | Condenser | Output |
yellow
|
| K5 | Light/Alarm | Output |
white
|
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 50 | 2 °C | Room setpoint |
| rd | Differential | 0.1 to 20 | 2 °C | Control band |
| c5 | Min Off | 0 to 30 | 3 min | Compressor delay |
| d0 | Defrost Type | 0-4 | 1 | Defrost method |
| d1 | Defrost End | 0 to 25 | 6 °C | Termination temp |
| d2 | Max Defrost | 1 to 180 | 30 min | Maximum duration |
| d3 | Defrost Interval | 0 to 48 | 8 hr | Time between |
| Fc | Condenser Mode | 0-3 | 1 | Fan control |
| HC | HACCP Enable | 0=Off, 1=On | 1 | Logging |
Error Codes
Solution: Check B1
Solution: Check B2
Solution: Check B3
Solution: Check condenser
Solution: Check charge
Solution: Close door
Solution: Check system
Frequently Asked Questions
Press HACCP button to access logged events
Set DI1 for door switch and configure delay time
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Carel
Country: Italy