SC723A-001-PM72028
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The SC723A-001-PM72028, part of Pacific Scientific's SC720 Command Controllers, is constructed from stainless steel with a passivated finish. It features a hex socket cap head style, Allen (Hex) drive type, and complies with ISO 4762. The controller has a tensile strength of 700 MPa and offers high corrosion resistance.
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Product Description:
The SC723A-001-PM72028 is a controller that has a 12-bit RDC with ±22 arcmin accuracy. Pacific Scientific is the manufacturer of this module, and it delivers 7.5 amperes continuous stall current and 4.5 kW peak power at 50 centigrade temperature. It functions on a wide input range of 90 to 264 volts Ac, single phase which ensures integration across industrial automation settings.
This SC723A-001-PM72028 controller offers a velocity offset that is fully adjustable to zero and it has a robust bus voltage of 320 volts dc when functioning from a 240 volts ac input power. This module output current peaks at 15 amperes at 50°C for up to 5 sec time. Its current loop bandwidth value lies from 50 to 3000 Hz. It draws a bus current of 9 Arms (RMS) under a 240 Vac, three phase input configuration. Its standout feature is the powerful shunt regulator which is able to handle 40 kW continuously and up to 6 kW at peak conditions. This module efficiency increases from 95 percent at 50 percent output voltage with rated continuous current. It carries a continuous current value of 7.5 amperes at continuous form and 15 A at peak situations. It is highly efficient as it consumes only 500 m amperes at 120 volts and 250 milli amperes at 240 volts.
The SC723A-001-PM72028 controller velocity input is managed through a ±10V analog command. It supports bus power input voltage of 120 Vac or 240 Vac (±10% / -15%) and operates across 47 to 63 Hz in either single or three phase configurations. It ensures stable performance with its 20 kHz output ripple frequency and minimal velocity offset drift of 50 mV/°C.
Frequently Asked Questions about SC723A-001-PM72028:
Q: What does the adjustable velocity offset in the SC723A-001-PM72028 allow for in system tuning?
A: It enables precise alignment of the zero-speed reference, minimizing drift and enhancing low-speed stability. This is especially valuable in closed-loop motion control applications.
Q: How does the controller handle regenerative energy during rapid deceleration?
A: Its built-in shunt regulator dissipates excess energy, protecting the drive and maintaining bus voltage stability. This is critical for high-inertia or frequent start-stop systems.
Q: Can the SC723A-001-PM72028 operate on both 120 Vac and 240 Vac power inputs?
A: Yes, it accepts both voltages with tolerance margins, offering installation flexibility. It auto-adjusts to single or three-phase configurations without hardware changes.
Q: Why is a current loop bandwidth of up to 3000 Hz significant in motion control?
A: Higher bandwidth enables faster current response, reducing motor lag and improving dynamic performance. It’s essential for high-precision or fast-reacting applications like robotics.
Q: What are the advantages of using a ±10V analog velocity input signal?
A: This allows compatibility with standard motion controllers and ensures smooth, proportional speed control. It's ideal for analog control loops and retrofits.
