VT 1600 Servo Amplifiers

The VT 1600 Servo Amplifier series provides Eurocard-format amplifier electronics for driving servo pilot valves in hydraulic control systems that do not use LVDT spool feedback. In operation, the card takes a command signal and converts it into a controlled proportional current for the valve solenoid. This output current includes dither, helping improve valve response by reducing the effects of hysteresis. The control section can be configured for PI, PD, or PID behavior, giving the amplifier flexibility for position-control loops, constant-velocity control, or direct valve command arrangements when the internal controller is bypassed. Front-accessible potentiometers are used for tuning the control response, and a built-in current meter on the faceplate allows quick checking of valve current during setup or troubleshooting. The amplifier also includes stabilized internal power circuitry and can be supplied either by a regulated ±15 V source or by a higher-voltage dual supply that is regulated onboard. For cabinet installation, VT 1600 cards fit into Eurocard magazines or card holders, providing a secure mounting format with organized wiring support and EMC shielding for industrial hydraulic applications.