Product Description:

The VT 1610-3X/E1/4WS3EE32-3X is a plug-in servo amplifier card produced by Bosch Rexroth Indramat for the VT 1600 Servo Amplifiers series. Mounted in a standardized 32-pole rack, the board translates command voltages from a PLC or motion controller into proportional coil currents that drive electro-hydraulic spool or throttle valves. This arrangement supports closed-loop position, force, or pressure control on automated machinery and fits modular hydraulic control assemblies.

The module accepts a differential reference of 0 to ±10 V, and this signal is converted into an output of ±60 mA so the paired valve receives linear actuation across its stroke. All power for the electronics is drawn from a symmetrical bus of ±22 to 28 V, and an onboard regulator derives the internal supply rails. Overall consumption stays below <200 mA, which helps limit heat buildup in dense control cabinets. Field wiring terminates on a DIN 41612 Form D, 32-pole connector, and the front-panel test pins align with an ammeter scale of ±30 divisions for loop adjustment. A division pitch of 5.08 mm, along with card edges that reserve seven divisions on the component side and one division on the conductor side, keeps the board aligned within Eurocard frames.

A relay output with 2000 Ω coil resistance operates whenever the enable logic is true, and its armature is energized through a dither-optimized drive that runs at 340 Hz / 3 mAss to improve hydraulic repeatability. The relay resets within a 1 ms window, allowing fast disable functions during fault events. Additional features include solder-masked tracks that follow the 5.08 mm grid and clearly silkscreened component numbers that make the board easier to identify during service. Despite the full set of functions, the card weighs only 0.20 kg, which reduces stress on the backplane connectors during insertion and removal.