SC323A033 Pacific Scientific
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The Pacific Scientific SC323A033 is part of the SC320 Command Controllers series and supports single or multi-axis configurations. It features torque and velocity control functions with a continuous current of 7.5 Amps and a peak current of 15 Amps. The controller includes an integral power supply, supports input voltages of 120 or 240 VAC, and offers four-quadrant operation with resolver feedback.
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Product Description:
The SC323A033 is a command controller produced by Pacific Scientific for the SC320 Command Controllers series. It is intended to govern brushless servo axes in automated machinery, providing coordinated torque or velocity regulation through its integrated control electronics. Designed for cabinet installation, the unit forms the interface between upper-level motion commands and the power stage that drives the motor windings, allowing machine builders to implement single-axis or multi-axis motion platforms without separate external regulators.
The controller accepts an AC supply of 120/240 VAC within a line frequency window of 47–63 Hz, so it can be wired to either domestic or industrial feeders without transformers. Its continuous output capability is rated at 7.5 A, supporting medium-frame servomotors during steady operation, and the drive stage works in four-quadrant mode to handle motoring and braking in both rotational directions. A built-in encoder emulator delivers 1024 ppr square-wave signals, allowing downstream PLCs that rely on incremental feedback to monitor position even though the native feedback device is a resolver. Separate logic and bus AC inputs keep the control electronics energized while the power section is isolated, and the axis configuration jumpers let the same hardware supervise one or several coordinated axes.
For short accelerations, the current limit rises to 15 A, giving the servo extra torque during index moves. The resolver signals are digitized by a 12-bit RDC; combined with the mechanical accuracy of ±22 arcmin, this resolution supports fine speed loops without adding an optical encoder. An integral power supply eliminates the need for an external bulk supply, and an internal shunt regulator dissipates regenerated energy during rapid deceleration. The personality module can be ordered in analog or digital form so the command interface can match either ±10 V velocity references or network-based setpoints without changing the base controller.
Frequently Asked Questions about SC323A033:
Q: What input voltage options are supported by the SC323A033 controller?
A: The SC323A033 accepts both 120 VAC and 240 VAC input voltages for flexible power compatibility.
Q: What are the current ratings for the SC323A033 controller?
A: This controller can handle a continuous current of 7.5 A and a peak current of 15 A, allowing for demanding motion applications.
Q: What motion control functions does the SC323A033 offer?
A: The SC323A033 provides torque and velocity control functions for precise motion management.
Q: What type of feedback and accuracy does the SC323A033 utilize?
A: A resolver feedback type is used on the SC323A033, offering an accuracy of ±22 arcminutes.
Q: What is the encoder emulation resolution for the SC323A033 controller?
A: With 1024 ppr encoder emulation, this model can output high-resolution position data for system integration.
