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
The PU21 Single-phase Power Controller from a 4-20 mA DC signal, a manual setting device (PU20VR10), and other methods. The control method can be switched between phase control and zero-cross control by means of external contacts, communication, etc. Types of phase control include constant voltage, constant current, and constant power, in addition to the basic type (no feedback), each of which can be selected according to the characteristics of the applicable heater.
Extensive product lineup
Power control methods include basic, constant voltage, constant current, and constant power. Frequency-division control is supported. An appropriate model can be selected according to the characteristics of the applicable heater. The PU21_ of power controllers covers a wide range of current ratings from 10 to 500 A and a wide range of voltage ratings from 100 to 440 V AC (200–440 V AC in the case of PU23).
Abundant options for expansion of functions
Options include heater burnout alarm and current restrictions. A communication function (RS-485/Modbus) is available if a model with a setting and display unit is selected.
Visualization of heater control by programless communication
By using PU21_ power controllers in combination with the CMC15G communication controller (sold separately), it is possible to programlessly communicate with host devices such as a PLC. By transferring data such as output voltage, output current, output power, and heater resistance, it is easy to "visualize" heater control.
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