SC403-001-T3 Pacific Scientific
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The Pacific Scientific SC403-001-T3 is part of the SC400 Servo Drives series and supports an input voltage of 115 or 230 VAC in 1 or 3-phase. The drive delivers a continuous output power of 2250 watts and peak output power of 4500 watts at 230 VAC. It provides a continuous output current of 7.5 amps, a peak output current of 15 amps, and features a current loop bandwidth of up to 3 kHz.
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Product Description:
The SC403-001-T3 is a digital servo drive manufactured by Pacific Scientific for the SC400 Servo Drives series. In an industrial automation cell, this unit converts single- or three-phase AC input into controlled DC power so that brushless servomotors receive precise velocity and torque commands. Its task is to close the motor control loop and maintain stable motion profiles under varying mechanical loads.
When powered from 230 VAC, the drive can deliver a continuous mechanical output of 2250 W while supplying the motor with 7.5 A of steady current. A current-loop bandwidth of 3 kHz lets the amplifier respond to rapid load changes without overshoot. Internally, the DC bus is charged to 160 VDC from a 115 VAC line or to 320 VDC from a 230 VAC line; this voltage feeds a pulse-width-modulated bridge that switches at 15 kHz, keeping ripple outside most motor torque bandwidths. Command signals enter through a ±10 V velocity input, and the Tachsyn feedback port interprets 2.0 V/Krpm gradients for speed verification. Offset drift is held to 50 µV/°C, reducing long-term error. An open-collector fault output rated 30 VDC, 25 mA sinks safety interlocks on external controllers. The enclosure is 4.5 in wide, allowing dense panel layouts.
For transient events, the power stage can source a peak motor current of 15 A and support a momentary mechanical output of 4500 W, giving headroom during acceleration or impact loads. Excess regenerative energy is routed to an internal shunt resistor that dissipates 40 W continuously and tolerates surges up to 6000 W without triggering an over-voltage fault. Together, these peak ratings, the single- or three-phase 115/230 VAC input range, and the fault signaling circuit finalize the drive’s protective envelope and dynamic reserve for indexing tables, conveyors, and pick-and-place axes.
Frequently Asked Questions about SC403-001-T3:
Q: What is the continuous output power capability of the SC403-001-T3 servo drive?
A: The SC403-001-T3 drive provides a continuous output power of 2250 W at 230 Vac, 3-phase input.
Q: What is the continuous output current rating for the SC403-001-T3?
A: This servo drive is rated for a continuous output current of 7.5 A.
Q: What type of input voltage and phases does the SC403-001-T3 support?
A: The SC403-001-T3 accepts an input voltage of either 115 or 230 VAC, supporting both 1-phase and 3-phase configurations.
Q: What is the peak output current provided by the SC403-001-T3?
A: The peak output current for the SC403-001-T3 is 15 A, allowing for short bursts of higher torque.
Q: What velocity input command range does the SC403-001-T3 accept?
A: A velocity input command of ±10 V is supported by the SC403-001-T3 drive for speed reference.
