The electronic amplifiers are designed to have a Euro card like format and are intended to control proportional directional valves and pilot valves. The VT-3000 electronic amplifiers feature four command valves that can be adjusted using potentiometers to limit the maximum input signals. They have a preset ramp time of five seconds. These amplifiers must be plugged or unplugged only when the power supply is off.

VT-3000 electronic amplifiers have a power supply voltage of 24VDC +/-10% and an input control voltage of +/-9V. The Rexroth electronic amplifiers are designed to convert input voltage signals to proportional output currents for powering proportional solenoids. Their control voltage wires must be kept shielded all the time. The amplifiers have some internally connected inputs and outputs to which no connections must be made. The measurements on these electronic amplifiers must be carried out with only instruments that have resistance of more than 100 kiloOhms. Our ability to build obsolete parts and repair any product with minimum turnaround time are two compelling reasons why you should buy your industrial automation products from us.

• VT-3000 electronic amplifiers with solenoid lines of up to 50m in length must make use of LiYCY type cables with a 1.5mm² cross-section.
• The Rexroth amplifiers are characterized by a power consumption of less than 50VA and a current consumption of less than 1A with loading current.
• The VT-3000 series of electronic amplifiers have four LEDs on their front plates for fast visual references of the input relays.
• The electronic amplifiers support the modification of the acceleration and deceleration rates from the standard five seconds to one second by using the built-in ramp generator.
• The amplifiers have a size of 100 x 160 mm as per DIN 41494 specifications and support a form D 32-pin terminal strip connection.

VT-3000 electronic amplifier cards are intended to be operated between 0°C and 50°C. They come equipped with a step function generator, two pulsed current output stages and polarity protection for the voltage supply. The amplifiers also include relays that can be switched with a smoothed 24VDC supply.

The Rexroth electronic amplifiers are lightweight and weigh only 0.13kg. Their front plates have a height of 128.4mm corresponding to 3 HE and widths of 5.08 mm or 1TE and 7 TE on the soldering and component sides respectively. The amplifiers have a pulse width modulated output that renders a dither effect to alleviate hysteresis and permit high ambient temperature range.