VT 17158-21

The VT 17158-21 servo amplifier from Bosch Rexroth Indramat, part of the VT Servo Amplifiers series, represents a high-performance solution for industrial automation control cabinets. This compact device measures 40 x 79 x 85.5 mm (W x H x D) and weighs just 0.16 kg, optimizing panel space without sacrificing functionality. Engineered to operate from a nominal 24 V DC supply, it accommodates a Supply Voltage Range of 21 to 35 V with a Rated Supply Voltage tolerance of +40% / –10%. The unit is protected to IP20 standards according to EN 60529, safeguarding internal components against incidental contact. Connectivity is provided through 12 screw terminals, ensuring secure attachment of power, signal, and control lines.

Featuring a sophisticated internal architecture, the amplifier consumes approximately 30 VA of apparent power while maintaining a typical Current Consumption of 1.2 A (peak <1.3 A>), reducing thermal stress and conductor sizing requirements. The command interface accepts a Command Value Voltage range of 0 to ±10 V with an input impedance >50 kΩ, preserving signal integrity in multi-device installations. Motion profiles benefit from an adjustable Ramp Time Range spanning 50 ms to 5 s and a configurable Jump Height Range of up to 50% of Imax. The amplifier delivers a Max Solenoid Current of 1.75 A and supports multiple Solenoid Resistance Options (4.8, 5.4, 10, 19.5 Ω) for flexible actuator drive. These characteristics combine to provide precise voltage control and minimize distortion under dynamic load conditions.

Designed for reliable integration, the VT 17158-21 mounts easily on a standardized Carrier rail TH 35–7.5 (EN 60715), streamlining installation in distributed control systems. It operates over an Operating Temperature Range of 0 to +50 °C, requiring adequate ventilation to maintain consistent performance in enclosed panels. The IP20 rating indicates the need for enclosed, dust-free environments, while the robust screw-terminal design resists vibration-induced loosening. As a lightweight, space-saving amplifier with comprehensive voltage tolerance and adjustable drive parameters, it is ideally suited for valve control, solenoid actuation, and other industrial automation tasks where reliability and precise control are critical.