RD51.1-4B-004-L-NN-NN-NN-FW
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MPN: R911288743
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The RD51.1-4B-004-L-NN-NN-NN-FW from Bosch Rexroth Indramat is part of their RD 500 Drive Controllers series and features an air-cooled system. It operates on a three-phase input voltage of 380-480V AC, with a frequency range of 0 to 500 Hz. The drive has an IP20 enclosure protection and supports optional fieldbus communication modules.
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Product Description:
The RD51.1-4B-004-L-NN-NN-NN-FW is a drive controller that runs on a three-phase 400 VAC power input. It supplies a nominal output of 0.5 kW. The controller is developed by Bosch Rexroth for the use of industrial automation. The normal current drawn by the controller is 1.6 A. The controller has the highest supported current of 3.7 A.
This RD51.1-4B-004-L-NN-NN-NN-FW drive controller yields a continuous torque of 1.6 Nm. The maximum torque provided is up to 5.5 Nm. The torque-to-current ratio of the controller is 1.45 Nm/A. The controller can generate a stall torque of 2.3 Nm with a stall current of 1.7 A. The speed constant of the controller is 87.96 V per 1000 rpm. It has an electrical time delay of 5.3 milliseconds. The resistance of stator coils is measured at 16.59 ohms, while the inductance is 87.7 millihenries. These values help ensure stable electrical behavior in regular motion control tasks. The RD51.1-4B-004-L-NN-NN-NN-FW drive controller uses a resolver feedback system for position detection. The resolver system in this drive has lower resolution than optical encoder types. It does not offer a certified safety level (SIL). The insulation meets Class F standards according to IEC 60034-1. The controller can work in temperatures between -15 degrees C and +40 degrees C, with a drop in performance at temperatures reaching +55 degrees C.
Mechanically, the RD51.1-4B-004-L-NN-NN-NN-FW drive controller features a shaft with a 19 mm diameter and a 40 mm shaft length. The mounting face is 100 mm wide, suitable for IM B5 flange-type mounting. The overall motor section length is approximately 156 mm. The drive weighs about 3.5 kg without a braking unit. It has a rotational inertia of 0.65 x10-3 kgxm^2. It handles up to 90% humidity, as long as the air is non-condensing.
Frequently Asked Questions about RD51.1-4B-004-L-NN-NN-NN-FW:
Q: How does the electrical time delay of 5.3 milliseconds impact the RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller's operation?
A: The RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller has an electrical time delay of 5.3 milliseconds, allowing for stable transitions in control signals. This ensures smooth motion and prevents abrupt jerks or malfunctions.
Q: Why is a resolver feedback system used in the RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller?
A: The RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller uses a resolver feedback system for position detection. This provides accurate feedback, although with lower resolution compared to optical encoders, suitable for many industrial applications.
Q: What is the importance of the Class F insulation in the RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller?
A: The RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller uses Class F insulation to ensure high thermal stability. This allows the controller to operate safely in environments with higher temperatures, preventing overheating.
Q: How does the 19 mm shaft diameter benefit the RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller?
A: The RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller has a 19 mm shaft diameter to support reliable torque transmission and compatibility with standard industrial machinery. This ensures solid performance and long-lasting durability.
Q: Why does the RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller handle up to 90% humidity?
A: The RD51.1-4B-004-L-NN-NN-NN-FW Drive Controller is designed to operate in environments with up to 90% humidity, as long as no moisture forms. This ensures reliable performance in damp industrial environments without the risk of electrical failure.
