SC101-001 Pacific Scientific
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The Pacific Scientific SC101-001 is a brushless servo controller from the SC100 Brushless Servo Controllers series. It offers a nominal bus voltage of 320 VDC and can deliver a continuous output current of 7.5 Amps with a peak output of 15 Amps for five seconds. Operating at an efficiency greater than 95%, this controller supports input voltages of 230 VAC and input frequencies between 47 and 63 Hz.
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Product Description:
The SC101-001 is a brushless servo controller produced by Pacific Scientific and assigned to the SC100 Brushless Servo Controllers series. It provides the power and closed-loop regulation required to drive permanent-magnet servo motors in industrial automation systems, translating velocity or torque commands from a host controller into regulated motor currents. Its role is to maintain precise speed and torque in conveyors, pick-and-place axes, and indexing tables.
The unit draws single-phase 230 VAC (+10%, -15%) at 47-63 Hz and converts this line input to a nominal DC bus of 320 VDC. Under continuous stall conditions it can deliver 7.5 A of phase current, corresponding to a sustained mechanical output of 1.5 kW, while dissipating 60 W internally at full load. Current is modulated at a loop bandwidth of 800 Hz and switched through the IGBT bridge at 5 kHz, giving low ripple torque. Operating efficiency remains at 95% or higher, so most of the bus energy is transferred to the motor. Command interfaces include 4-20 mA or ±10 V velocity inputs, and a ±7.5 V monitor provides real-time speed feedback. A 24 VDC, 250 mA fault output is available for interlocking with external safety circuits.
For transient moves, the controller supplies a peak output of 15 A and 4 kW for up to five seconds. Energy returned during deceleration is absorbed by an internal shunt regulator rated at 30 W continuously or 8 kW for 300 ms, protecting the DC bus from overvoltage. Peak shunt action is coordinated with electronic braking to avoid nuisance trips. The unit maintains full ratings from 0 °C to 50 °C and may be stored between -55 °C and 70 °C. Switching topology keeps conducted losses low, enabling reliable service where cooling airflow is limited. Standard-controller configuration means all features are factory enabled without customization.
Frequently Asked Questions about SC101-001:
Q: What is the nominal bus voltage requirement for the SC101-001 servo controller?
A: The SC101-001 controller operates at a nominal bus voltage of 320 VDC.
Q: What is the continuous output current of the SC101-001 at stall?
A: This controller supports continuous output current of 7.5 A at stall.
Q: What efficiency can be expected from the Pacific Scientific SC101-001 controller?
A: The SC101-001 controller operates at an efficiency greater than 95%.
Q: What is the velocity command input range for current mode on the SC101-001?
A: The SC101-001 supports a velocity command input range of 4–20 mA for current-mode control.
Q: What is the maximum operating temperature for full ratings on the SC101-001 controller?
A: Full operation of the SC101-001 is supported at ambient temperatures up to 50°C.
