This document describes the features and functions of the digital valve amplifier VT-VSPD-1, which is suitable for proportional valves without electrical position feedback. It is compatible with multiple valve types and has programmable features such as characteristics curve correction and ramp function generator.
This manual describes the VT‑VSPD‑1 2X digital valve amplifier, a device for controlling proportional valves without electrical position feedback. It outlines the supported valve types, functional features such as BODAC configuration, differential voltage inputs, programmable output characteristics and ramp‑function generator, and lists required accessories and installation options.
Technical data, pin assignments, connector layouts, unit dimensions, and engineering/maintenance notes are included. The document also explains how to use the BODAC PC software for parameter setting, how to connect up to 32 amplifiers on the local bus, and provides safety and EMC guidelines for installation and operation. This manual is written in Chinese.
| Working voltage UB | 24 VDC +40% –10% |
|---|---|
| Maximum current consumption | 1.5 A |
| Digital input logic 0 level | 0–5 V |
| Digital input logic 1 level | 16 V–UB |
| Analog input voltage range | ±10 V |
| Analog output voltage range | ±10 V |
| Maximum ramp time | 300 s |
| Board size | 100 x 160 mm |
| Operating temperature range | 0 to 50 °C |
| Storage temperature range | -20 to +70 °C |
| Weight | 0.2 kg |
Up to 32 amplifiers can be interconnected on the local bus.
The device requires a 24 VDC supply with a tolerance of +40% to –10%.