LAE
AT2-5BS4E-AG
AT2 Series • Refrigeration Controller
Quick Info
Type
Refrigeration
Application
Display Case
Probe Inputs
1
Relay Outputs
1
Panel Size
32x74 mm
Output Functions
R1
Compressor
Basic controller with buzzer output for temperature alarm
Technical Specifications
Display & Interface
| Display Type | LED |
| Display Digits | 3 |
| Buttons | 2 |
| LED Indicators | Compressor, Alarm |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 100-240V AC |
| Frequency | 50/60Hz |
| Power Consumption | 2VA |
Sensor Inputs
| Probe Inputs | 1 |
| Probe Type | NTC |
| Temp Range | -40 to 110°C |
| Accuracy | ±0.5°C |
Relay Outputs
| Relay Outputs | 1 |
| Relay Rating | 16A/250VAC |
Physical
| Panel Size | 32x74 mm |
| Depth | 55 mm |
| IP Rating | IP65 (front) |
| Weight | 82 g |
Operating Conditions
| Operating Temp | -5 to 50°C |
| Storage Temp | -20 to 60°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| 1 | Power L | Input |
brown
|
| 2 | Power N | Input |
blue
|
| 3 | Probe | Input |
yellow
|
| 4 | Probe | Input |
white
|
| 5 | Relay COM | Output |
black
|
| 6 | Relay NO | Output |
black
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| SP | Setpoint | -40 to 110 | 5 °C | Temperature setpoint |
| HY | Differential | 0.5 to 10 | 2 °C | Switching hysteresis |
| HA | High Alarm | -40 to 110 | 15 °C | High temperature alarm |
| LA | Low Alarm | -40 to 110 | -10 °C | Low temperature alarm |
| AD | Alarm Delay | 0 to 120 | 30 min | Alarm activation delay |
| CA | Calibration | -10 to 10 | 0 °C | Probe offset |
Error Codes
E1
Probe error
Solution: Check probe wiring
HH
High alarm
Solution: Temperature above HA limit
LL
Low alarm
Solution: Temperature below LA limit
Frequently Asked Questions
Press any button to mute buzzer temporarily
Alternative Models (Cross Reference)
Dixell XR10CX
Eliwell EW Plus 902
Carel PJEZS
Manufacturer Information
Brand: LAE
Country: Italy