Autonics DPU Series Digital Thyristor Power Controllers
Autonics DPU Series Digital Thyristor Power Controllers (Single-Phase & 3-Phase)
Autonics DPU Series are high-performance digital thyristor power controllers for precise heater and power load control.
Available in single-phase (DPU1) and three-phase (DPU3) models with phase control, zero-cross control, and RS485 communication.
The Autonics DPU Series Digital Power Controllers are advanced thyristor-based power controllers designed for accurate and stable control of industrial heating loads. Using high-speed digital CPU control, the DPU series supports phase control, feedback control, and zero-cross control methods.
Available in single-phase (DPU1) and three-phase (DPU3) configurations, these controllers are ideal for heaters such as nichrome, platinum, molybdenum, carbon, and halogen lamps used in industrial furnaces and process equipment.
Key Features
Single-phase (DPU1) and 3-phase (DPU3) models
Digital control with high-speed CPU
Control modes:
Phase control
Constant voltage/current/power feedback
Zero-cross cycle control (fixed / variable)
Zero-cross ON/OFF control
Wide current range: up to 600 A (model-dependent)
Built-in fast-acting fuse for protection
RS485 communication (Modbus RTU) models available
Multiple control inputs: 4–20 mA, 0–10 V, ON/OFF, potentiometer, RS485
Comprehensive alarms: overcurrent, overvoltage, heater break, fuse break
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | DPU1 (Single-Phase), DPU3 (3-Phase) |
| Control Method | Phase control, Feedback control, Zero-cross control |
| Rated Frequency | 50 / 60 Hz (auto recognition) |
| Output Range | Phase: 0–98%, ZC: 0–100% |
| Control Inputs | 4–20 mA, 0–20 mA, 0–10 VDC, Pulse, ON/OFF, RS485 |
| Digital Inputs | RUN/STOP, AUTO/MAN, RESET, Output Hold, SP1–SP6 |
| Communication | RS485 (Modbus RTU) |
| Rated Current | Up to 600 A (model-dependent) |
| Power Supply | 110 / 220 / 380 / 440 VAC |
| Protection | Overcurrent, Overvoltage, Heater break, Fuse break |
| Ambient Temperature | −10 to +50 °C |
| Mounting | Panel mount |
| Certification | CE |
Applications
Industrial electric heaters
Furnaces and ovens
Plastic processing machines
Packaging machinery
Semiconductor & electronics manufacturing
Textile and glass industry heating
OEM heating control panels
What’s in the Box?
Autonics DPU Series Power Controller
Mounting bolts
Terminal block
Instruction manual
FAQ
Q1. What is the difference between DPU1 and DPU3?
DPU1 is single-phase, while DPU3 is three-phase power control.
Q2. Can this controller work with 4–20 mA output from PID controllers?
Yes. It fully supports 4–20 mA and 0–10 V analog control inputs.
Q3. Is RS485 communication available?
Yes. Optional RS485 (Modbus RTU) models are available.
Q4. What type of heaters are supported?
Resistive heaters, halogen lamps, platinum, molybdenum, carbon, and similar loads.
Q5. Does it support heater break detection?
Yes. Partial heater break detection is supported.