SC453 Pacific Scientific
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The Pacific Scientific SC453 is a servo controller from the SC450 Brushless Servo Controllers series. It is a programmable digital position controller with resolver feedback and a position control resolution of 4096 steps per revolution. The SC453 has a continuous current rating of 7.5 A at both 115 VAC and 230 VAC and a peak output power of 4500 W at 230 VAC.
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Product Description:
The SC453 is a programmable digital position controller supplied by Pacific Scientific within the SC450 Brushless Servo Controllers series. As a stand-alone servo controller, it governs brushless servomotors by driving phase currents, tracking commanded motion profiles, and closing the position loop for automated machinery. In industrial automation cells, it converts PLC step references into precise rotor angles, allowing packaging axes, pick-and-place gantries, or indexing tables to achieve repeatable motion without external power stages.
At 115 or 230 VAC, the controller can deliver a continuous output of 7.5 A, which indicates the thermal steady-state current its power electronics can supply without derating. For rapid accelerations, the current limit rises to 15.0 A, giving twice the continuous rating for brief intervals so that inertia-heavy loads reach speed quickly. When operated on a 230 VAC supply, it can return up to 4500 W of power to the motor windings, while an internal chopper stage modulates that energy at 15 kHz to keep torque ripple low. Position feedback is obtained from a resolver, and the motion processor interpolates each electrical revolution into 4096 steps per rev, which supports fine positioning and reduced following error.
The unit functions between 0 to 50 °C, so cabinet ventilation must keep ambient air within this range during operation. It safely endures non-operating periods from -55 to 70 °C without degradation, and an enclosure mass of 5.0 kg keeps it suitable for panel mounting while still providing useful thermal mass. The controller can index through a span of 0 to 100,000,000 steps, allowing long travel lengths to be mapped without rescaling. This range supports positioning applications that require large command spans across extended machine travel.
Frequently Asked Questions about SC453:
Q: What type of feedback does the SC453 controller utilize?
A: The SC453 servo controller supports resolver feedback for precise positional control.
Q: What is the peak output power of the SC453 at 230 VAC?
A: This model provides a peak output power of 4500 W when operating at 230 VAC.
Q: What is the position control resolution of the SC453 servo controller?
A: The position control resolution is 4096 steps per revolution on the SC453.
Q: What is the continuous current rating of the SC453 controller?
A: The continuous current rating for both 115 VAC and 230 VAC operation is 7.5 A.
Q: What is the operating temperature range for the SC453?
A: This servo controller operates within an ambient temperature range of 0 to 50°C.
