U508BN-012S18
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The U508BN-012S18 servo motor features a rated output of 60 watts, a friction torque of 0.02 Nm, and support for gear ratios like 1/15 and 1/30. Part of the Super DC Servo Motors series manufactured by Sanyo Denki, it operates with a rated armature voltage of 75V and a thermal resistance of 2.8 K/W.
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Product Description:
U508BN-012S18 is a latest module from Sanyo Denki’s state-of-the-art Super DC Servo Motors product range. The component uses analog command inputs within ±10V, ensuring it aligns seamlessly with industrial-grade control power standards. The component accepts a resolver max drive current of 55 mA AC‑RMS which allow strong signal excitation. It outputs 2 VAC resolver voltage to provide robust sensing signals. This variant also delivers 80 W of continuous output power, making it suitable for moderate-load industrial solutions.
It operates at a rated speed of 3000 rpm, enabling fast rotational response ideal for high-throughput motion control applications. Drawing 1.7 ampere during industrial operation, this establishes exact drive ampacity needs while managing power flow and optimizing control architecture. The resolver’s 7-8 kHz modulation frequency effectively suppresses electrical interference in signal transmission. Its peak quadrature resolution of 65,536 counts per revolution enables ultra-precise motion tracking. It supports feedback from encoder formats like Resolver and Hall, broadening sensor integration options. An input voltage of 4.25 VAC for the resolver guarantees consistent excitation for reliable and stable loop feedback. This allows a maximum feedback cable length of 75 ft (22.9 m) to preserve signal quality in distributed systems.
The resolver max DC resistance of 120 Ω ensures the winding remains safe under standard load conditions. Control modes of U508BN-012S18 include velocity control to support smooth speed regulation and torque (current) control which enables direct torque adjustment. The 3 MHz of encoder output frequency limit simply allows top-speed encoder compatibility. Integration features a 7‑segment LED status display that allows straightforward operational monitoring. The drive shows a typical repeatability of ±0.02° which enables consistent motion accuracy. It also indicates a thermal time constant of 85 s which allows predictable motor heating behavior during sustained use.
Frequently Asked Questions about U508BN-012S18:
Q: How does the resolver drive current affect the U508BN-012S18’s feedback strength?
A: This resolver drive with 55 mA AC‑RMS ensures consistent excitation which maintains high signal amplitude and supports reliable position tracking.
Q: Why is a 2 VAC resolver output voltage important for the U508BN-012S18’s sensing functionality?
A: Motor’s 2 VAC output voltage delivers clean resolver signals which enhances positional accuracy and reduces susceptibility to detection errors.
Q: How does operating at 7–8 kHz modulation frequency improve feedback clarity in the U508BN-012S18?
A: Using 7–8 kHz modulation suppresses power-line noise which leads to cleaner feedback signals and smoother motor control.
Q: What advantage does the U508BN-012S18 gain from a quadrature resolution of 65,536 counts per revolution?
A: This DC module provides 65,536 counts per revolution that enables exceptionally fine positional resolution and also improves motion smoothness and control precision.
Q: How does dual compatibility with Resolver and Hall feedback benefit U508BN-012S18’s adaptability?
A: Working with both Resolver and Hall sensors allows flexibility in motor’s feedback systems which simplifies integration into varied motor setups.
