AK-PC 730
AK-PC Series • Refrigeration Controller
Quick Info
Output Functions
Advanced pack controller for medium refrigeration racks
Technical Specifications
Display & Interface
| Display Type | LCD Graphic |
| Display Digits | 128x64 pixels |
| Buttons | 6 |
| LED Indicators | Power, Alarm, Network |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 100-240V AC |
| Frequency | 50/60Hz |
| Power Consumption | 15VA |
Sensor Inputs
| Probe Inputs | 8 |
| Probe Type | NTC / PT1000 / 4-20mA / 0-10V |
| Temp Range | -50 to 300°C |
| Accuracy | ±0.1°C |
Relay Outputs
| Relay Outputs | 12 |
| Relay Rating | 16A/250VAC (x4), 8A (x8) |
Physical
| Panel Size | DIN Rail 9M mm |
| Depth | 125 mm |
| IP Rating | IP20 |
| Weight | 650 g |
Operating Conditions
| Operating Temp | -10 to 55°C |
| Storage Temp | -25 to 70°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| L/N | Power 230VAC | Input |
brown/blue
|
| S1 | Suction Pressure | Input |
4-20mA
|
| S2 | Discharge Pressure | Input |
4-20mA
|
| S3 | Oil Pressure | Input |
4-20mA
|
| S4-S8 | Temperature Probes | Input |
Various
|
| DI1-4 | Comp Status | Input |
gray
|
| K1-K6 | Compressors | Output |
black
|
| K7 | Unloader | Output |
black
|
| K8-K9 | Cond Fans | Output |
black
|
| K10 | Oil Heater | Output |
orange
|
| K11 | Oil Return | Output |
black
|
| K12 | Alarm | Output |
red
|
| AO | 0-10V Fan Speed | Output |
green
|
| ETH | Ethernet RJ45 | Comm |
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| P01 | Suction SP | -1.0 to 25 | 3.0 bar | Suction pressure setpoint |
| P02 | Neutral Band | 0.1 to 5 | 0.5 bar | Dead band |
| P03 | Discharge SP | 5 to 45 | 18 bar | Discharge pressure setpoint |
| c01 | Total Compressors | 1 to 6 | 4 | Number of compressors |
| c02 | With Unloader | 0 to 3 | 0 | Compressors with unloader |
| c05 | Rotation | 0-2 | 1 | 0=Off, 1=Runtime, 2=Starts |
| o01 | Oil Management | 0-1 | 1 | 0=Off, 1=Enabled |
| o02 | Oil Return Cycle | 0 to 120 | 60 min | Oil equalization interval |
Error Codes
Solution: Check refrigerant
Solution: Check condenser
Solution: Check oil level
Solution: Check thermal
Solution: Check contactors
Frequently Asked Questions
Up to 6 compressors with lead-lag
Yes, via Ethernet to Danfoss ADAP-KOOL system
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Danfoss
Country: Denmark