SC104-001-T1 Pacific Scientific
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Current response time:
4 Minutes
34 Seconds
The Pacific Scientific SC104-001-T1 is part of the SC100 Brushless Servo Controllers series and operates with a nominal bus voltage of 320 VDC. This standard controller provides a continuous output power of 6 kW at 20 A stall current, and achieves a peak output power of 17 kW with a peak output current of 60 A for 5 seconds. It runs on a 230 VAC input voltage, supports 3 input phases, and uses a Tachsyn Processor interface.
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Product Description:
The SC104-001-T1 is a brushless servo controller produced by Pacific Scientific and belongs to the SC100 Brushless Servo Controllers series. Designed as a standard controller for closed-loop motion axes, the unit converts three-phase line power into a regulated DC bus and a pulse-width-modulated armature output. This allows precise speed or torque control of compatible synchronous servo motors in industrial automation systems such as pick-and-place gantries, web handling stations, and indexing tables. The controller is intended for multi-axis equipment where repeatable motor response is needed during indexing, positioning, and speed regulation.
At the power stage, the internal DC link is maintained at 320 VDC. The controller accepts a three-phase line supply of 230 VAC (+10%, -15%) over 47–63 Hz, so it matches standard plant distribution networks. With a continuous stall capability of 20 A, the drive can deliver 6 kW of mechanical output while dissipating 130 W of heat under full load through its heat sink and forced-air path. The forced-air path helps move heat away from the power section during sustained operation. Gate arrays switch the IGBTs at 5 kHz, balancing acoustic performance with current ripple. Support electronics include a Tachsyn processor interface and a tachometer gradient of 0.5 V/Krpm for velocity feedback. A 30 W shunt regulator limits bus overvoltage during regenerative events.
For short-duration transients, the current rises to 60 A for five seconds, and the power stage can supply 17 kW of output, while a peak shunt regulator rating of 15 kW for 300 ms absorbs returned energy without external braking resistors. This short-term overload capability supports acceleration and other brief peak-demand events. Overall conversion efficiency exceeds 95%, reducing cabinet heat load and minimizing wasted power. Full ratings apply across an ambient range of 0 °C to 50 °C; outside this band, derating is required, and the unit may be stored between −55 °C and 70 °C without performance degradation. The velocity-loop hardware supports coordinated motor control where compact installation and stable response are required.
Frequently Asked Questions about SC104-001-T1:
Q: What is the nominal bus voltage required for the SC104-001-T1 controller?
A: The SC104-001-T1 servo controller operates with a nominal bus voltage of 320 VDC.
Q: What input voltage and phase requirements does the SC104-001-T1 have?
A: This controller supports three-phase 230 VAC input with a tolerance of +10% to -15%.
Q: What is the continuous output current capability of the SC104-001-T1 servo controller?
A: It delivers a continuous output current of 20 A at stall.
Q: Which interface type is used on the SC104-001-T1 servo controller?
A: The SC104-001-T1 utilizes a Tachsyn Processor as its interface type.
Q: What efficiency rating does the SC104-001-T1 servo controller provide?
A: The controller maintains efficiency greater than 95%.
