Product Description:

The VT1600-31-E is a servo amplifier card produced by Bosch Rexroth Indramat within the VT 1600 Servo Amplifiers series. It conditions command signals and drives proportional hydraulic valves, enabling accurate pressure or flow control in automated machinery. Built on a Euro Card layout, the module slides into standardized 19-inch subracks for straightforward integration in modular control systems. This format also keeps the front-facing connections and indicators accessible when the card is installed in a dense rack assembly.

The card dimensions are 100 x 160 mm, which match the IEC size used for Euro format boards and support mechanical compatibility with common backplanes. All field and supply lines enter through a front-edge 32-pin plug, which simplifies harness routing and helps prevent connector misalignment. Internally, the amplifier derives its analog stages from symmetrical ±15 V rails, so the host rack must provide that dual supply for proper operation. During worst-case operation, the module draws up to 200 mA, which helps size power distribution and cooling capacity in the rack. A front plate height of 128 mm aligns the operating LEDs and address switches with adjacent modules. On the solder side, the trace layout follows a 5.08 mm grid to maintain orderly conductor spacing across the board.

Across the rack face, the board covers 8 HP, leaving room for airflow while still providing enough frontage for labeling and test access. Valve excitation relays close in just 1 ms, supporting precise step response in closed-loop hydraulic motion sequences. The coil output stage presents a resistance of 2000 Ω, allowing the connected control circuit to determine current behavior and dissipation with predictable results. The assembly weighs only 0.15 kg, which keeps the load on card guides and backplane connectors low during insertion and removal. This low mass is also helpful where multiple cards are mounted side by side in compact rack systems.