Technical Information
The EWM* family of electronic cards is designed for closed-loop control systems, commonly used in industrial applications. These cards are suitable for DIN EN type 50022 rail mounting and feature digital electronics with user-friendly software for easy startup, even by non-specialized staff. The cards are compatible with actuators that have built-in sensors based on the magnetostrictive principle, providing a comprehensive package.

Positioning Control
Five different cards are available for positioning control, ranging from simple preset devices to complex axis cards with Profibus communication and SSI sensors. Users can select based on the required position accuracy.

Axes Synchronism Control
Two versions are available: a basic master/slave concept for two axes with an analogue signal, and a more sophisticated version that can control up to 24 synchronized axes using Profibus protocol communication and SSI sensors.

Pressure Control
Two card versions are available for pressure control. The P-AA card is used for piloting proportional valves for pressure reducing or relief control, embedding the amplifier for direct valve connection. The PQ-AA card, when coupled with a suitable directional valve, allows for pressure control in closed-loop during static conditions and flow/velocity control in open-loop during movement.

Speed Control
The RL card facilitates fast/slow speed control and is user-friendly.

Custom Control
The PID card is fully customizable for complete control of parameters and values.

Controls Overview
- S: Stroke
- SP: Stroke and Pressure
- MS: Master and Slave
- SS: Synchro Stroke
- P: Pressure
- PQ: Pressure and Flow
- PID: Customizable
- RL: Speed

Input and Output Specifications
Inputs can be analog (±10 volt, 4÷20 mA) or digital (Profibus, binary). Feedback is available in analog (±10 volt, 4÷20 mA) or digital (SSI, PLC) formats. The maximum output current is 2 A, with analog outputs of ±10 volt or 4÷20 mA.

For more information, visit Duplomatic’s complete product range at www.duplomatic.com.