VT-11023
The Bosch Rexroth Indramat VT-11023 servo amplifier from the VT Servo Amplifiers series delivers precise proportional control for industrial automation applications. This compact unit features a differential input range and internal oscillator to drive valve spools and solenoids with repeatable accuracy. Key capabilities include an adjustable ramp generator supporting responses from 10 ms to 5 s, built-in cable break recognition and a controller optimized for valve spool positioning. Weighing just 0.14 kg, the VT-11023 combines high performance with a minimal footprint, making it ideal where panel space is limited. The amplifier’s robust design ensures reliable operation under varying load and environmental conditions.
Electrical and mechanical specifications are defined to support rigorous industrial demands. The amplifier operates at +24 VDC +40%/-10% and consumes up to 2 A during peak use, while accepting a differential input of 0 to ±10 V; R = 50 kΩ. The internal oscillator frequency is 5.8 kHz ±10%, driving two pulsed current output stages with a maximum solenoid current of 1.8 A; R = 5.4 Ω. Pulse frequency reaches approximately 1.5 kHz to ensure fine-grained inductive positioning signaling, and the maximum transducer stroke is limited to 2.8 mm. The housing measures 40 x 79 x 85.5 mm, and the unit meets disturbance resistance Class 3 to prEN 50082 T2. Storage conditions range from -25 to +85 °C, with permissible operating temperatures of 0 to +50 °C.
Operational features enhance performance and system reliability in demanding environments. The ramp time range of 10 ms to 5 s allows precise tuning of response dynamics for both fast and slow actuation tasks. A release function is active between 8.5 V and 40 V, providing secure fail-safe disengagement, while integrated polarity safeguards protect the voltage supply against miswiring. LED indicators report internal supply voltage and multifunction status, offering real-time diagnostic feedback. The oscillator and demodulator circuitry are optimized for inductive positioning, and a dedicated cable break recognition feature alerts the controller to transducer failures.
System integration is simplified through industry-standard electrical interfaces and mounting dimensions, enabling seamless retrofit into existing valve control racks. The VT-11023 amplifier is engineered for applications such as proportional valve control, hydraulic actuation systems, and machine tool auxiliary functions. Compliance with Bosch Rexroth amplifier families ensures compatibility with both new and legacy controllers, reducing engineering effort. This makes the VT-11023 an ideal choice for industrial automation, mobile hydraulic equipment, and factory process control where precision, reliability, and compactness are essential.
