VT 17158-21

Product Description:

Bosch Rexroth Indramat manufactured the VT 17158-21. With tolerances of +40% and -10%, the VT 17158-21 servo amplifier is designed to function within a voltage range of 21 VDC to 35 VDC, which is obtained from a nominal 24 VDC. In industrial settings where supply voltage variations are frequent, this large voltage margin is significant. Severe electrical abnormalities, such as undervoltage-triggered logic instability or overvoltage-induced semiconductor stress, might result from operating the amplifier outside of these settings. In addition to accommodating typical power supply fluctuations, the tolerance band shows firm internal voltage control and protective circuitry that can tolerate these brief changes without seeing a decline in dependability or performance. Additionally, by eliminating the requirement for highly steady power sources, it streamlines system design. The VT 17158-21's power and current consumption metrics show a meticulously tuned electrical architecture. The amplifier's apparent power usage of around 30 VA shows how well it manages the distribution and conversion of electrical energy inside its circuitry.

At the same time, the power supply infrastructure is subjected to reasonable demands due to the usual current draw of 1.2 A, which peaks at less than 1.3 A. This allows for the conservative rating of conductors, fuses, and protective relays without sacrificing operational stability. Additionally, low current limits the device's internal heat accumulation and prolongs its service life by limiting resistive losses (I²R). An input impedance of more than 50 kΩ and a command voltage input range of 0 to ±10 V is used to interface the signal with the VT 17158-21. By reducing signal distortion or loading effects on the upstream controller, this combination guarantees precise control. When many devices are daisy-chained or when lengthy transmission lines jeopardize signal integrity, a high-impedance input stage is essential to maintaining the integrity of the control signal. Motor speed and direction may be symmetrically controlled thanks to the bidirectional input voltage range's support for full-range motion profiles.

The amplifier's mechanical characteristics are designed for smooth integration and operating security. The device, which weighs just 0.16 kg and has dimensions of 40 mm in width, 79 mm in height, and 85.5 mm in depth, is small enough for thick control cabinets without sacrificing ventilation or access. It may be connected to a variety of I/O and power lines securely and without vibration, thanks to its twelve screw connectors. According to EN 60715, it attaches to a standardized TH 35–7.5 carrier rail, which is often used in industrial automation systems. The device satisfies IP20 to EN 60529 protection standards, which indicate sufficient defense against unintentional contact but demand clean, dry surroundings, usually enclosed panels. The need for thermal management is highlighted by its working temperature range of 0 to +50 °C, which means that adequate ventilation or passive heat dissipation is necessary to prevent performance drift or early failure under continuous duty circumstances.