SC102-001-T3 Pacific Scientific
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The Pacific Scientific SC102-001-T3 is a brushless servo controller from the SC100 Brushless Servo Controllers series with a nominal bus voltage of 320 VDC and efficiency greater than 95 percent. It supports a continuous output current of 12 Amps and a peak output current of 15 Amps for 5 seconds, with a switching frequency of 5 kHz. The controller operates at input voltages of 230 VAC across 3 phases and full ratings between 0°C to 50°C.
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Product Description:
The SC102-001-T3 servo controller is manufactured by Pacific Scientific and belongs to the SC100 Brushless Servo Controllers series. It regulates current and velocity loops for three-phase permanent-magnet motors used in automated machinery. The unit interfaces with motion-control hosts through a Tachsyn processor, so the drive can read tachometer feedback directly and close its speed loop without external signal conversion. Because the speed loop is handled inside the controller, the host can pass motion commands without a separate stage for tach feedback conditioning.
As a panel-mounted module, the drive accepts a three-phase mains supply of 230 VAC (+10%, -15%) within an input frequency window of 47–63 Hz. Internally, this line power is rectified to a DC bus that stabilizes at 320 VDC, providing the voltage source for the output stage. Under stall or constant load, the controller can deliver 12 A of current to the motor, corresponding to a continuous mechanical output of 3.6 kW. Continuous shunt regulation dissipates up to 30 W so excess regenerative energy can be managed during deceleration, while overall switching takes place at 5 kHz to help keep current ripple low. At 100% load, the electronics lose 90 W as heat, and convection cooling supports operation in ambient temperatures from 0 °C to 50 °C. The rectified bus also supports stable inverter operation when motor demand changes quickly.
Short transient demands are handled by a peak output of 15 A for five seconds, translating to 4.5 kW of mechanical power at the shaft. If braking energy exceeds the continuous shunt level, the shunt circuit can absorb bursts up to 8 kW for 300 ms before the DC bus rises. Overall power conversion maintains an efficiency above 95%, which helps limit cabinet heat buildup during sustained operation. The tachometer gradient of 2.0 V/Krpm matches common Tachsyn transducers, and storage is permitted between -55 °C and 70 °C. These operating limits allow the controller to handle brief acceleration and braking events without forcing the motor to remain at continuous current.
Frequently Asked Questions about SC102-001-T3:
Q: What is the nominal bus voltage for the SC102-001-T3 controller?
A: The SC102-001-T3 servo controller has a nominal bus voltage of 320 VDC.
Q: What is the continuous output current rating for the SC102-001-T3?
A: This controller provides a continuous output current of 12 A at stall.
Q: What are the input voltage and phase requirements for the SC102-001-T3?
A: The SC102-001-T3 requires a three-phase 230 VAC input with a tolerance of +10% and -15%.
Q: How efficient is the Pacific Scientific SC102-001-T3 controller?
A: The efficiency of the SC102-001-T3 controller is greater than 95%.
Q: What type of interface is present on the SC102-001-T3 servo controller?
A: A Tachsyn Processor is the interface type used on the SC102-001-T3.
