Azbil Corporation
Azbil PU21 Power Controllers

Manufacturer: Azbil Corporation
Model: PU21
Feature
For visualized heater control by programless communication
Select the optimal controller from our extensive lineup
Wide range of basic functions
Expanded functionality
Problem detection with various alarm functions
Summary
The PU21 accepts 4–20 mA or manual inputs. You can switch control modes via external contacts. Options include phase control or zero-cross control. Furthermore, several feedback types match your specific heater.
The lineup covers 10 to 500 A. It also handles 100–440 V AC. Consequently, the device fits many power needs. Frequency-division control adds even more flexibility.
Additionally, choose from many expansion functions. These include burnout alarms and current limits. Models with displays also offer RS-485 communication. Thus, you can monitor the system easily.
Finally, pair this unit with the CMC15G controller. This allows programless communication with your PLC. Consequently, you can visualize voltage and power data. This setup simplifies your entire control process.











