Product Description:

Bosch Rexroth Indramat's VT1600S3X1 is a plug-in servo amplifier card in the VT 1600 Servo Amplifiers series. It conditions an analog command signal and delivers controlled output current for proportional valve coils, supporting closed-loop hydraulic motion in industrial machinery. Mounted as a Eurocard, it occupies a single slot in a 19-inch rack and provides built-in dither so valve spools can overcome static friction and respond smoothly to small command changes. The format supports compact rack-based installation where several control cards are grouped in one enclosure.

The board length and height follow the standard Eurocard outline of 100 x 160 mm. Connection to the backplane is made through a 32-pin interface that carries power, reference signals, and feedback lines. Internally generated dither is injected at 3 mApp with a frequency of 340 Hz, and this superimposed AC component helps keep the hydraulic gap free of stiction while improving proportional accuracy. Control electronics are powered from a symmetrical bus of ±24 VDC, so the card can share a common supply with other rack modules. A nominal coil resistance of 2000 Ω is the expected load for the regulated current loop. The front plate projects 128 mm above the card guide, giving direct access to test points and adjustment potentiometers.

The circuitry draws no more than 200 mA max from the supply, which keeps demand on the shared power source low. For fast on-off sequences, an internal relay switches within 1 ms, supporting quick response during valve actuation. The housing spans a total width of 8 HP, and the solder side keeps component clearance to 5.08 mm so adjacent cards are not obstructed. Weighing only 0.15 kg, the module places little mechanical load on the card cage. Its low mass also helps simplify handling during installation and removal.