uSA-X-header

μSA-X Servo Drive

The 5th Generation of PWM Servo Amplifiers from Motion Control Systems sees the introduction of the μSA-X series, a new product line that further miniaturizes the drive. This series is truly designed from the ground up to maximize reliability while minimizing size for those direct DC applications ranging from 20 - 360 VDC, and where high power/current output is still required. Modular, feature rich options allow the user to configure a solution that is optimized for their end application resulting in a high performance drive solution in a cost effective manner. MCS drive systems are field proven in a wide variety of servo/axis, spindle and other demanding high performance applications.

uSA-X Series Feature Highlights

  • Standard Interfaces: RS232, ±10V Analog, Sin/Sin+120
  • Commutation Types: 6-step, MCS HED TrueSine, Incremental Encoders Optional Commutation Inputs1: Resolver, Sensorless Commutation Outputs1: Encoder Simulation (ABI single-ended)
  • Adjustable PWM Frequencies up to & including 25kHz
  • Selectable Torque or Velocity Mode Control
  • DC Bus (Direct LV or HV Input), Internal Regen transistor & External Regen Braking Resistor Connections
  • Stand Alone or Host controlled
  • Frameless or Housed for System Integration & User Flexibility
  • Integrated PCBA Heatspreader for maximum thermal transfer, with options for additional heatsinks, coldplates, … as required for higher power & frequency operation

Performance and Characteristics

Amplifier ModeluSA500-XuSA1000-XuSA1500-X
Output Current (A)
Continuous / Peak for 3 Sec
7.5 / 1515 / 3022.5 / 45
Input Power RequirementDC Bus: 12 to 120VDC and 120VDC to 300V Options Available
Logic DC Input: +24VDC (nominal)
PWM FrequencyUp to 50 kHz (depending on model and application)
CommunicationsRS232
Commutation 6-Step HED, TrueSine Interpolated 6-Step 20-Step HED, Incremental Encoder, Sinewave Encoder
Current Loop BandwidthUp to 4 kHz (depending on motor and application)
Efficiency> 95%
Primary CoolingConduction / Natural Convection

Mechanical Dimensions & Details

μSA-X series drives are designed for compact systems that require or allow for direct DC input. The system is
flexible in its mounting and thermal options as either enclosed (framed) or frameless can suit the end application requirements.

An isolated baseplate/heatspreader for either framed/frameless versions comes with the drive, and add-on thermal management systems (heatsink, fans, coldplates, etc…) are available as required, else customer can utilize an application’s existing coldplate, cabinet wall, or other thermal heatsinking mechanism to cool the drive.

Below shows dimensions and mounting for framed and frameless drive versions.

Please contact MCS for more information on thermal requirements.

21 Basic Motor Frame Sizes, < 1” to ~1m OD
Torque capabilities from oz-ins to > 50,000 lbs-ft
Custom sizes, frameless, partially housed, fully housed options Multi-winding Motors for increased performance and output

Linear Amplifiers up to 20Apk Output Current
PWM Drives from < 1kVA to > 200kVA
Special/Custom Applications & Design Services
Pressure Tolerant, Underwater Motors and Drive Solutions