VT 3000 37
Produced by Bosch Rexroth Indramat, the VT 3000 37 analog amplifier is a part of the VT 3000 series distinguished by factory assigned connections and ramp times. Operating with a voltage range of 24 VDC + or - 10%, it lacks electrical position feedback but is suitable for diverse proportional pressure and directional valves. The device features adjustable potentiometers, an LED display for the command value, a differential input, a ramp generator, and a function generator. For secure voltage supply, it has polarity protection and two pulsed current output stages. The amplifier, ideal for open-loop gain uses, provides a loop gain from 20,000 to 200,000 and has a zero output impedance thanks to its lack of internal resistance. Finally, the VT 3000 37 is a plug-in unit cautioning against use of plugs with freewheel diodes for solenoid connections.
