PC833-001-T Pacific Scientific
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The Pacific Scientific PC833-001-T is a servo drive from the PC800 - PCE800 Brushless Servo Drives series, delivering a continuous power output of 1.5 kW and a power stage efficiency of 98%. It supports a bus voltage of 320 VDC at 240 Vac 3-phase and provides a peak output current of 10.6 Amps. The drive has an inrush peak current of 300 Amps with a 1.5 millisecond pulse width.
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Product Description:
The PC833-001-T is a brushless servo drive produced by Pacific Scientific in the PC800-PCE800 Brushless Servo Drives series. The unit converts three-phase AC input to a regulated DC bus and high-frequency PWM output that governs torque, velocity, and position of matched servomotors in industrial automation cells, packaging lines, and material-handling axes. It serves as the amplifier between the motion controller and the motor, delivering commanded currents while protecting the motor-drive system from electrical or thermal overload.
The DC link is maintained at 320 VDC when the drive is supplied from a 240 V three-phase source, leaving headroom for quick current changes. With forced-air cooling, the amplifier delivers 1.5 kW and up to 5.3 A; without extra airflow, current is limited to 3.6 A. For acceleration and impact loads, current can rise to 10.6 A, giving motors extra torque without exceeding thermal limits. A switching network running at 20 kHz minimizes audible noise and reduces shaft ripple. During steady operation, the line draws about 6 A RMS, and regenerated energy can be dissipated through an external resistor at a 6% duty cycle.
Energy generated by decelerating axes is first absorbed internally; the bus capacitor can take up to 30 J before the shunt regulator activates. When the threshold is crossed, the onboard transistor diverts surplus power to an external brake resistor at a peak rate of 12.8 kW. Overall power-stage losses are low, with an efficiency of 98%, reducing panel heat. Start-up demands are higher, and an inrush limiter manages 300 A peaks that last only 1.5 ms. Motor leads may extend to 50 m, allowing the drive to remain close to the controller while the actuator sits on moving machinery. Proper operation requires a connected motor with phase inductance between 2.0 mH and 2 H.
Frequently Asked Questions about PC833-001-T:
Q: What is the continuous output current capability of the PC833-001-T?
A: The PC833-001-T servo drive can continuously provide an output current of 3.6 A RMS during standard operation.
Q: How long can the motor cable be when using the PC833-001-T?
A: This drive supports a maximum motor cable length of 50 meters for flexible installation options.
Q: What is the power stage efficiency of the PC833-001-T servo drive?
A: With 98% power stage efficiency, the PC833-001-T converts nearly all input power to usable motor output.
Q: What is the peak output current the PC833-001-T can deliver?
A: The peak output current available from this model is 10.6 A RMS, allowing for temporary high-demand loads.
Q: What bus voltage does the PC833-001-T utilize with a 240 Vac 3-phase supply?
A: This drive operates with a bus voltage of 320 VDC when supplied from a 240 Vac 3-phase source.
