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Duplomatic Oleodinamica designs and produces a complete range of hydraulic components that are suitable for all application sectors of both industrial and mobile fields.
The Duplomatic EWM-S-AD Positioning Analogue card has been developed for closed loop positioning of hydraulics actuators where an high accuracy is needed, using a digital sensor with SSI interface to measure the position.
The card controls a directional proportional valve with integrated electronics and allows an optimal use of overlapped and zero-overlapped proportional valves. Internal function and failure are monitored with two digital output easy to read.
Velocities can be defined also by an external speed command. Two versions are available, with output value in voltage or in current.
The positioning control loop can be made in two ways: stroke depending deceleration or NC mode.
The card use the RS232C interface, and is settable via notebook, using the kit (EWMPC).
| Description | Units |
|---|---|
| Power Supply | 24 ÷ 30 V DC Ripple Included |
| Fuse, External | 1A Medium Time Lag |
| Current Consumption | 350 mA (Technical Data of the Sensor have to be Considered) |
| Command Position | 4 ÷ 20 mA (Rι = 240 Ω) 0 ÷ 10 V (Rι = 25 kΩ) |
| Maximum Position Accuracy | 1 μm |
| Command Speed | 0 ÷ 10 V (Rι = 90 kΩ) 4 ÷ 20 mA (Rι = 240 Ω) |
| Feedback Value | Digital Sensor with SSI Interface RS-422, 150kBaud |
| Output Values | Differential 10 (max load 10 mA 2 kΩ) 4 ÷ 20 (max load 390 Ω) |
| Sample Time | 1 ms |
| Interface | USB-B 2.0 |
| Electromagnetic Compatibility (EMC) 2004/108/EC | Immunity EN 61000-6-2: 8/2005 Emissions EN 61000-6-4: 6/2007; A1:2011 |
| Housing Material | Thermoplastic Polyamide PA6.6 - Combustibility Class VO (UL94) |
| Housing Dimensions | 120(d) x 99(h) x 46(w)mm |
| Connections | USB-B (2.0) - 7 x 4 Poles Screw Terminals - PE direct via DIN rail |
| Operating Temperature Range | -20 / 60 °C |
| Protection Degree | IP 20 |
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