SC103

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The SC103 servo controller delivers a continuous output current of 12A, a peak output current of 15A, and supports an input voltage of 230 V, 3 Phase. Part of the SC100 Brushless Servo Controllers by Pacific Scientific, it features a torque limit signal range of 0.5–5 V and operates in ambient temperatures up to 60°C.

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Product Description:

This SC103 servo controller delivered by Pacific Scientific operates permanent magnets with three phases. The controller’s voltage may exceed 400 VDC when in use. This product shouldn’t be opened by its user at any point in time. The device can be configured as a torque block with its motor. This unit’s design helps it deliver trouble-free operation. Its control board is mounted externally. The controller is known for delivering high-quality performance.

This product allows direct line operation. The device has no transformers among its components. This unit has many protection override jumpers. It can be equipped with a noise-reducing output toroid. The controller’s line rating must not exceed 100 kVA with its direct line operation. This product features three phases. The device’s storage temperature is between -55 °C and 70 °C. The unit needs to be inspected for damage before it is installed and operated. It has a dedicated terminal for connector keying.

The controller can be enabled by closing a contact between its ENABLE and ENABLE RTN terminals. This product’s signal inputs may pick up noise emitted from nearby equipment. The device’s chassis must be connected to a common ground point. This unit’s TB3 terminal strip accepts a wire size of 14 AWG for motor wiring. It portrays dangerous voltages, temperatures, and currents when it is operated. The servo controller may trip out if there is an intermittent short on its +/-12 V supply. This product has four types of fuses on the top right side. The device doesn’t have any customization and is a standard controller. This unit encompasses a velocity control loop. It has two positive temperature coefficient thermistors.

Continuous Output Current
12 A
Control Voltage Fuse
0.5 A, 250 V Dual Element
Control Voltage Output
+12 VDC, -12 VDC, 100 mA max each
Heatsink Overtemp Trip
95°C nominal
Input Voltage (ac)
230 V, 3 Phase
Inrush Current Max
160 A (4 ms width)
Main Input Fuse
20 A, 300 V Time Delay
Motor Current Monitor Output
±5 V full scale, 0.167 V/A, 20K Ω min load
Motor Voltage Monitor Output
±7.5 V full scale, 16 mV/VLL, 20K Ω min load
Operating Ambient Temp Max
60°C
Peak Output Current
15 A
Tachometer Input
±8 V full scale, 10K Ω min
Torque Limit Signal
0.5–5 V, 10% to 100% of peak
Velocity Command Input (current Mode)
4 to 20 mA, unidirectional
Velocity Command Input (voltage Mode)
±10 V differential, 10K Ω min
  • SC 103
  • SC-103
  • SC1O3

Frequently Asked Questions about SC103:

Q: What is the mounting orientation of the SC103 controller?

A: The SC103 controller has a vertical mounting orientation.

Q: What voltage does the SC103 controller support for direct line operation?

A: The SC103 controller supports a 230 VAC voltage for direct line operation.

Q: What is the efficiency of the SC103 controller?

A: The efficiency of the SC103 controller is more than 95%.

Q: How is the SC103 controller cooled?

A: The SC103 controller is cooled by natural convection.

Q: How are the controller signals of the SC103 controller interfaced?

A: The controller signals of the SC103 controller are interfaced using its TB1 and TB2 terminal blocks at its bottom.


Internal Product Review

  • ‘‘The SC103 controller delivers high performance. It delivers trouble-free operation with its protective circuits. The drive has a less than 1.01 form factor.’’

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