Product Description:

The VT 1610-3X/E0/VT11426A/U123 is a servo amplifier card manufactured by Bosch Rexroth Indramat for the VT 1600 Servo Amplifiers series. The Eurocard-format board conditions analog command voltages and supplies regulated current to proportional solenoid coils, enabling precise position or pressure control in electrohydraulic equipment. By using internal modulation and feedback circuitry, it stabilizes valve behavior, eliminates stick-slip effects, and supports repeatable actuation across varied temperatures and loads. The module is intended for mounting in 19-inch control cabinets alongside other motion controllers used on automated production lines.

The amplifier delivers an adjustable coil current of ±60 mA, trimmed with front-plate potentiometers. To reduce hysteresis, it superimposes a dither signal of 3 mAss at 340 Hz on the drive current, while the internal pulse-width modulator updates every 1 ms to keep the loop responsive. Despite the active circuitry, the card draws less than 200 mA from the system supply, which helps when multiple axes share a common bus. It seats in a Eurocard magazine or card holder and connects through an indirect plug, while the English-labeled faceplate allows direct adjustment of gain and ramp settings.

The physical layout follows IEC spacing rules: the component side spans 7 divisions, the conductor side spans 1 division, and track centers are set at 5.08 mm intervals. All signals are routed through a DIN 41612 Form D backplane connector with a 32-pole pin map for rack integration. The controlled solenoid should present roughly 2000 Ω of resistance to stay within the amplifier's linear range. Because the board is supplied without a ±15 V regulator, clean dual rails must be furnished by the rack power supply. The assembly weighs 0.20 kg, permitting dense stacking without stressing the card guides.