VT 17190-21
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The VT 17190-21 proportional amplifier operates with a voltage range of 22 V to 35 V and has a power consumption of less than 25 VA. Manufactured by Bosch Rexroth Indramat as part of the VT 2000 Proportional Amplifiers, it features a 32-pin male DIN 41 612 connector. This unit includes ramp time adjustments.
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Product Description:
Bosch Rexroth Indramat manufactured the VT 17190-21. Bosch Rexroth Indramat makes the VT 17190-21. Strict electrical performance specs are required for the VT 17190-21 proportional amplifier to work in industrial systems. It’s part of the VT 2000 series. With a tolerance of +40% and -5%, the working voltage is 22 V to 35 V DC, and 24 V DC is the nominal point. This voltage range is not arbitrary; the internal electronics will run within safe and predictable boundaries. Beyond these limits, voltage can damage passive components and semiconductor junctions, which can reduce signal quality or irreversibly damage the circuit. The amplifier can handle both resistive and reactive loads as shown by the less than 25 VA power consumption. The amplifier can run with less thermal management overhead since the perceived power is low, which means less heat is produced. The amplifier function in controlling proportional valves depends on signal management and feedback. It can directly modify the position or flow rate of the valve by accepting a single-ended control voltage between 0 and 9 V referenced to the ground.
A differential input channel that supports 0 to 10 V and has a high input impedance of 100 kΩ to prevent signal loading is added to this control mechanism. Closed loop control systems are made possible by representing the feedback current output of 0 to 800 mA as a voltage signal of 0 to 800 mV with ±10 mA accuracy. The fine-grained regulation of hydraulic actuators and dynamic error correction depend on these feedback systems. Low noise and reliable operation in complex control circuits is ensured by a regulated ±9 V auxiliary output that can source up to ±25 mA and is stable within ±1%. This output can also power peripheral devices like sensors or small signal conditioning modules. For time domain management of hydraulic systems, which is required to avoid oscillations and mechanical shocks, the VT 17190-21 has some configurability options. Depending on the jumper S1 on the PCB, the ramp time can be changed from 30 ms to 1 or 5 seconds.
The amplifier is designed to be modular and fits in standard industrial form factors. It uses a 32-pin DIN 41 612 male connector (form D), which is a widely used standard for its reliable electrical contact and mechanical robustness, especially in noisy and vibrating environments. The PCB is compatible with standard 19” rack-mounted control systems as it has a 3 HE (128.4 mm) front panel and meets DIN 41 494 Euro-card dimensions (100 x 160 mm). With a storage tolerance of -25°C to +85°C and an operating temperature range of 0°C to 50°C, the environmental tolerance is increased.
Frequently Asked Questions about VT 17190-21:
Q: What is the power consumption of the VT 17190-21 proportional amplifier?
A: The power consumption of the VT 17190-21 is less than 25 VA, making it an energy-efficient solution for controlling proportional valves while reducing operational costs.
Q: What is the connector type for the VT 17190-21?
A: The VT 17190-21 uses a 32-pin male DIN 41 612 connector. This robust connector ensures secure and reliable connections for integration in complex automation systems.
Q: What is the range of ramp time adjustment on the VT 17190-21?
A: The ramp time adjustment range on the VT 17190-21 is from 30 ms (with external contacts) to approximately 1 s or 5 s, depending on the jumper S1 setting, offering flexibility in controlling system response.
Q: What is the temperature range for the VT 17190-21?
A: The operating temperature range of the VT 17190-21 is from 0°C to 50°C, with a storage temperature range from -25°C to +85°C. This ensures reliable operation in typical industrial environments.
Q: What is the clock frequency range for the VT 17190-21?
A: The VT 17190-21 allows for selectable clock frequencies of 100 Hz or 200 Hz, with a tolerance of ±10%, giving users the flexibility to adjust to specific system requirements.
