The EU4430 is ENDA's 1/16 DIN PID programmable process controller designed for precise temperature and process regulation in industrial heating applications. It accepts universal sensor inputs — thermocouples (J, K, T, S, R), Pt-100 RTD, and linear signals (0 to 20 mA, 4 to 20 mA, 0 to 10 V, 0 to 50 mV) — with a maximum scale range of -1999 to 9999.

What control capabilities does it offer?

The controller features PID control with precise auto-tune self-tuning, selectable heating and/or cooling modes, soft-start, and dual programmable setpoints. Three outputs are available: a primary control output (relay, SSR drive, or analog 0/4 to 20 mA), a second output configurable as alarm or secondary control, and a dedicated alarm relay. A digital input and a user-assignable function key provide operational flexibility.

How does it communicate with external systems?

An RS-485 interface with Modbus RTU protocol enables integration with SCADA and PLC systems, supporting up to 127 slave devices on a single bus. Key process variables and output states are accessible via standard Modbus registers.

What are the physical and environmental specifications?

The EU4430 fits a standard 45 x 45 mm panel cutout (48 x 48 mm bezel, 87 mm depth). The front panel is rated IP65 for washdown environments; the rear is IP20. Operating temperature range is 0 to 50 °C. Power supply is 90 to 250 V AC with a 24 V AC option available. Power consumption is 5 VA.