The DAV TECH CONTROLLER PCP is a closed-loop dispensing control unit purpose-built for progressive cavity pump systems in industrial fluid handling. It delivers precise, repeatable dosing of fluids ranging from low-viscosity solvents to high-viscosity silicones, greases, and resins (1 to 1,000,000 cPs) with ±1% volumetric accuracy. The 7-inch LED backlit touchscreen provides multilingual recipe management for hundreds of stored programs.

How does closed-loop encoder feedback ensure dosing precision?

The controller monitors pump rotor position via an encoder feedback loop, continuously comparing actual motor revolutions against the programmed setpoint. This closed-loop logic compensates for fluid viscosity changes, back-pressure variations, and mechanical wear, maintaining the target dispensed volume throughout the dosing cycle. A suckback function reverses motor rotation at the end of each dose to prevent fluid dripping, while the settable minimum level function triggers an alert before the reservoir runs dry.

How does the CONTROLLER PCP integrate into automated production lines?

External recipe selection uses 5-bit digital input coding for up to 32 recipes selectable from a PLC. Start and park dispensing commands are accepted via digital I/O, while output signals provide real-time status: Alarm, Ready, End of Dispensing, Solenoid Valve Control, Fluid End detection, and Drive Alarm. An M12 8-pin input connector and M12 8-pin output connector handle all discrete I/O. The EVO 2.0 generation adds 16 configurable digital inputs, 16 digital outputs, 8 analog inputs, a USB port, and full ProfiNet plus Modbus Server/Client integration for line-wide connectivity.

What pressure monitoring and safety features are included?

An external pressure sensor input (compatible with the PCP-PRESSURESENSOR accessory) monitors outlet pressure in real time. The controller supports multi-level password protection to restrict parameter changes to authorized users. The operating envelope spans 10-45 °C and 5-90% non-condensing humidity, with a storage range of -20 to +55 °C. An M9 3-pin connector controls an external solenoid valve or dynamic mixer (max 10 W) for automated fluid path switching.