PCO3000BM0
pCO3 Series • Refrigeration Controller
Quick Info
Output Functions
Programmable controller for chillers and heat pumps
Technical Specifications
Display & Interface
| Display Type | LCD |
| Display Digits | 6 |
| Buttons | 6 |
| LED Indicators | Power, Comm, Alarm |
Power Supply
| Voltage | 24V AC/DC |
| Voltage Range | 20-28V AC/DC |
| Frequency | 50/60Hz |
| Power Consumption | 12VA |
Sensor Inputs
| Probe Inputs | 8 |
| Probe Type | NTC/PT1000/4-20mA/0-10V |
| Temp Range | -50 to 150°C |
| Accuracy | ±0.2°C |
Relay Outputs
| Relay Outputs | 6 |
| Relay Rating | 8A/250VAC |
Physical
| Panel Size | 245x175 mm |
| Depth | 60 mm |
| IP Rating | IP00 |
| Weight | 450 g |
Operating Conditions
| Operating Temp | -20 to 60°C |
| Storage Temp | -30 to 70°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| +24V | Power + | Input |
red
|
| 0V | Power - | Input |
blue
|
| B1-B8 | Analog Inputs | Input |
various
|
| DI1-DI6 | Digital Inputs | Input |
gray
|
| NO1-NO6 | Relay Outputs | Output |
black
|
| Y1-Y4 | Analog Outputs | Output |
orange
|
| A/B | RS485 | Comm |
blue/yellow
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| SP1 | Setpoint 1 | -50 to 150 | 7 °C | Main setpoint |
| SP2 | Setpoint 2 | -50 to 150 | 12 °C | Secondary setpoint |
| NZ | Neutral Zone | 0 to 10 | 2 °C | Dead band |
| IT | Integral Time | 0 to 600 | 120 sec | PI integral |
| AD | Device Address | 1 to 247 | 1 | Modbus address |
| BD | Baud Rate | 0-4 | 2 | 0=9600...4=115200 |
Error Codes
Solution: Check specified sensor
Solution: Check system condition
Solution: Check system condition
Solution: Check RS485 wiring
Frequently Asked Questions
Use c.suite software with USB or serial connection
Set BD for baud rate and AD for device instance
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Carel
Country: Italy