ID 974
ID Series • Refrigeration Controller
Quick Info
Output Functions
Multi-output controller with comprehensive features
Technical Specifications
Display & Interface
| Display Type | LED |
| Display Digits | 3 |
| Buttons | 4 |
| LED Indicators | Compressor, Defrost, Fan, Alarm |
Power Supply
| Voltage | 230V AC |
| Voltage Range | 100-240V AC |
| Frequency | 50/60Hz |
| Power Consumption | 5VA |
Sensor Inputs
| Probe Inputs | 2 |
| Probe Type | NTC 10K |
| Temp Range | -50 to 110°C |
| Accuracy | ±0.5°C |
Relay Outputs
| Relay Outputs | 4 |
| Relay Rating | 8A/250VAC |
Physical
| Panel Size | 32x74 mm |
| Depth | 60 mm |
| IP Rating | IP65 (front) |
| Weight | 90 g |
Operating Conditions
| Operating Temp | -5 to 55°C |
| Storage Temp | -25 to 70°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| 1 | Power L | Input |
brown
|
| 2 | Power N | Input |
blue
|
| 3-4 | Probe 1 (Air) | Input |
red/white
|
| 5-6 | Probe 2 (Evap) | Input |
red/white
|
| 7-8-9 | Compressor (NC-COM-NO) | Output |
black
|
| 10-11-12 | Defrost (NC-COM-NO) | Output |
black
|
| 13-14 | Fan (COM-NO) | Output |
black
|
| 15-16 | Aux/Alarm (COM-NO) | 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 |
|---|---|---|---|---|
| SET | Setpoint | -50 to 110 | -20 °C | Temperature setpoint |
| Hy | Differential | 0.1 to 25.5 | 2 °C | Switching differential |
| dty | Defrost Type | 0-3 | 1 | 0=Off, 1=Electric, 2=Gas, 3=Comp stop |
| dit | Defrost Interval | 0 to 24 | 6 h | Hours between defrosts |
| dLt | Defrost Time | 1 to 99 | 45 min | Max defrost duration |
| dtE | Defrost End | -50 to 50 | 10 °C | End defrost temperature |
| Fnd | Fan During Defrost | 0-1 | 0 | 0=Off, 1=On |
| Fdt | Fan Delay | 0 to 15 | 3 min | Fan restart delay after defrost |
| OA4 | Output 4 Function | 0-4 | 0 | 0=Alarm, 1=Light, 2=Aux, 3=Second comp, 4=Door heater |
| HAL | High Alarm | SET to 110 | 5 °C | High temp alarm offset |
| LAL | Low Alarm | -50 to SET | -35 °C | Low temp alarm threshold |
Error Codes
Solution: Check air probe wiring
Solution: Check evaporator probe wiring
Solution: Temperature exceeded HAL
Solution: Temperature below LAL
Solution: Check heater element
Solution: Close door
Frequently Asked Questions
ID Plus 974 has RS485 communication and more advanced features
Use parameter OA4 to select function
Alternative Models (Cross Reference)
Manufacturer Information
Brand: Eliwell
Country: Italy
Parent: Schneider Electric