VT 1600 S31/1 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat VT 1600 S31/1 is a servo amplifier in the VT 1600 Servo Amplifiers series, with a coil resistance of 2000 ohms and a nominal supply of ±24 VDC. It features 32 connector pins, supports a ±10 V command input, and measures 100 x 160 mm in Euro card size. The amplifier operates with a supply current under 200 mA and weighs 0.15 kg.
Internal Product Review
The VT 1600 S31/1 is a servo amplifier designed for precise industrial control, with a ±10 V command input and ±24 VDC nominal supply. DIN 41 494 card compliance and a 340 Hz dither frequency give the unit dependable integration and smooth control behavior. A well-executed amplifier for consistent industrial performance.
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Product Description:
The VT 1600 S31/1 is a plug-in servo amplifier card from Bosch Rexroth Indramat and is supplied within the VT 1600 Servo Amplifiers series. Designed for mounting in standardized control racks, the card conditions low-level control signals and generates the current required to actuate proportional hydraulic valves used in industrial automation. By performing signal scaling, dither injection, and relay sequencing on a single Euro-format board, it serves as the interface between a PLC and the magnetic coil of a valve, allowing precise flow or pressure regulation in machinery.
The card uses the DIN 41 494 connector pattern, so it slides directly into backplanes equipped with a 32-pin edge contact. Its physical outline matches the 100 x 160 mm Euro card standard, and the front plate spans 8 HP and carries test jacks and indicators. The command stage accepts a differential reference of ±10 V, while onboard regulators distribute ±15 V internal rails to the analog circuitry. A dither oscillator drives the valve coil at 340 Hz, a frequency selected to overcome static friction without inducing audible noise. Signal processing and driver components operate with a 1 ms relay duty cycle. Total supply demand remains below 200 mA, helping the rack power supply support multiple installed cards without excessive loading.
The output channel is designed for coils with a resistance of 2000 Ω and superimposes a 3 mA peak-to-peak dither current on the steady command to linearize spool movement. Power for this stage comes from a single ±24 VDC rack supply, eliminating the need for dedicated external sources. The card has an overall mass of 0.15 kg, which reduces the mechanical load on card guides and simplifies handling during installation or maintenance. Its slim profile also conserves rack space in multi-axis hydraulic systems where several valve-control channels may be installed within the same enclosure.
