VT1600-S-30 Bosch Rexroth Indramat
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The VT1600-S-30 is a servo amplifier from the VT 1600 Servo Amplifiers series by Bosch Rexroth Indramat. This amplifier has a card size of 100 x 160 millimeters and a front plate height of 128 millimeters. It features a dither frequency of 340 Hz, a nominal coil resistance of 2000 Ohms, and a weight of 0.15 kilograms.
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Product Description:
The VT1600-S-30 servo amplifier card is manufactured by Bosch Rexroth Indramat and belongs to the VT 1600 Servo Amplifiers series. Designed for rack-mounted control systems, the card supplies regulated current to proportional valve coils so that motion or pressure commands issued by a PLC are translated into smooth hydraulic movement. By inserting a stable dither signal and shaping output ramps, the amplifier helps eliminate stiction in valve spools, making it a common interface between electronic controllers and hydraulic actuators in industrial automation cells. This operating method helps the hydraulic axis respond more predictably to small command changes and reduces abrupt movement at startup or reversal.
The amplifier follows the Eurocard layout with physical dimensions of 100 x 160 mm, allowing direct insertion into standardized backplanes without additional brackets. It superimposes a dithering current of 3 mAPP on the output, and this small alternating component keeps the valve spool oscillating microscopically to minimize static friction. The dither operates at 340 Hz, a frequency chosen to stay above the hydraulic control bandwidth while remaining within the magnetic response of typical solenoids. For compatibility with commonly used proportional coils, the output stage is tuned for a nominal load of 2000 Ω. The electronics draw < 200 mA from the system power rail, which helps limit heat buildup inside densely packed cabinets and reduces demand on the shared rack supply.
The card occupies the 3U height format, and it uses a front plate measuring 128 mm that carries test points and adjustment potentiometers accessible from the cabinet exterior. Its overall footprint across the rack is limited to 8 HP, preserving space for additional axis or pressure channels in multi-loop installations. Even with the onboard driver relay that switches in just 1 ms, the module’s mass stays at only 0.15 kg, which keeps handling simple and places little mechanical load on the rack. The compact housing is useful in cabinets where several proportional control cards must be installed side by side, and the front-access adjustments allow response changes without removing the module.
Frequently Asked Questions about VT1600-S-30:
Q: What is the dither current output of the VT1600-S-30 servo amplifier?
A: This model provides a dither current of 3 mAPP, which helps reduce static friction in hydraulic systems.
Q: What is the dither frequency of the VT1600-S-30?
A: The VT1600-S-30 operates at a dither frequency of 340 Hz for stable actuator performance.
Q: What form factor does the VT1600-S-30 use?
A: It is designed with a 3U form factor, making it suitable for standard rack installations.
Q: What is the nominal coil resistance supported by the VT1600-S-30?
A: The nominal coil resistance for this amplifier is rated at 2000 Ω.
Q: What is the power supply current rating for the VT1600-S-30 servo amplifier?
A: The power supply current required by the VT1600-S-30 is less than 200 mA.
