VT11030-12 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT11030-12 is a servo amplifier from the VT Servo Amplifiers series with an operating voltage of 24 VDC and a power consumption of 20 VA. It offers a maximum solenoid current of 800 mA, features a protection rating of IP20, and mounts on a TH 35/7.5 rail. The unit measures 79 mm in height, 25 mm in width, 85.5 mm in depth, and weighs 0.13 kg.
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Product Description:
The VT11030-12 servo amplifier is produced by Bosch Rexroth Indramat as part of the VT Servo Amplifiers series. This DIN-rail-mounted module conditions command signals and meters current to proportional solenoids in hydraulic valves, allowing a PLC or analog controller to drive flow or pressure stages accurately. In industrial automation, it serves as the electric-to-fluid interface that translates low-power control logic into regulated magnet force for valve actuation. Its control behavior is suited to hydraulic circuits where stable valve response is needed during changing load or pressure conditions.
The amplifier accepts a nominal supply of 24 VDC, with an allowable range from 21 V to 35 V, so it can tolerate common fluctuations on machine power buses. Under rated operation, it draws 0.85 A, which corresponds to a power demand of 20 VA. A dedicated 100 mA biasing current is available at the actuator output to pre-magnetize the coil and shorten response time. The internal clock generates control pulses at 200 Hz, providing fine resolution for pulse-width-modulated current shaping. When a full command is issued, the unit can deliver up to 800 mA to the solenoid, a level suited for medium-size proportional valves. Six screw terminals are provided for power, input, and output wiring, and the housing clips onto a TH 35/7.5 rail for quick installation.
The amplifier is intended for a target coil resistance of 19.5 Ω at 20 °C, which supports stable output regulation at the valve coil. Panel layout is simplified by compact dimensions of 25 mm in width, 79 mm in height, and 85.5 mm in depth. A mass of 0.13 kg limits stress on the rail during vibration or transport. Protection is rated at IP20, indicating finger-safe terminals and suitability for enclosed cabinets without direct moisture exposure. The narrow housing also helps preserve space for adjacent modules and organized wiring inside compact control enclosures.
Frequently Asked Questions about VT11030-12:
Q: What is the operating voltage range for the VT11030-12 amplifier?
A: The VT11030-12 operates with a nominal voltage of 24 VDC and supports a range from 21 V to 35 V.
Q: What is the maximum solenoid current output of the VT11030-12?
A: This model provides a maximum solenoid current output of 800 mA for control applications.
Q: What is the current consumption of the VT11030-12 servo amplifier?
A: The VT11030-12 consumes 0.85 A during typical operation.
Q: What level of environmental protection does the VT11030-12 have?
A: The protection rating for this amplifier is IP20, offering basic protection against solid objects.
Q: What type of mounting rail does the VT11030-12 use?
A: This unit mounts onto a TH 35/7.5 rail, allowing convenient integration into standard control cabinets.
