Pacific Scientific’s full range of brushless servo drives

Overall positioning of the product

This document is the selection manual for Pacific Scientific’s brushless servo drive system, aimed at high-precision industrial motion control, providing a complete solution for drivers and motors, covering low/high voltage, low/high power, single/multi axis scenarios.

Comparison of Parameters for the Four Major Drive Series

Series power supply peak current continuous power core characteristics

PC3400 AC90-253V/DC18-74V 5-40A 0.21-6.8kW AC/DC dual versions, ToolPAC， Space Vector Algorithm

PC800 AC90-264V 5.3-21.2A 1.1-3.0kW reduces volume by 40% and supports SERCOS

SC900 AC90-264V 5.3-42.4A 0.85-18kW standard type, DSP three ring control

SCE900 AC180-528V 5.3-33.7A 2.1-15kW High Voltage Global Edition, CE Certified

Core control technology

DRDC digital rotary conversion

24 bit resolution, 0.0013 arc minute accuracy

Strong anti-interference ability, suitable for harsh industrial environments

Signature current control

Match motor back electromotive force, torque ripple ≤± 2%

Smooth operation at all speed ranges

Full digital three loop control

Current loop with a bandwidth of 1.5kHz, updated to 62.5 μ s

Speed loop * *>400Hz * *, position loop * *>100Hz**

Full parameter software settings, no potentiometer drift

Interface and optional function cards

standard interface

Simulation instruction: ± 10V differential

Pulse command: up to 800kHz

Simulation encoder output: 128-16384PPR

Optional expansion card

OC930: RS232/485 communication

OC940: ERCOS Fiber Optic Bus

OC950: Single axis programmable, supports Modbus/DF1

Supporting servo motor series

Motor series flange specification continuous torque protection/structure

PMA 55-190mm 0.21-48.5Nm Universal High Power

PMB NEMA17/23/34 0.22–1.40Nm IP40， cost-effective

S small two models 0.5-6.6Nm small volume high torque

System performance and selection data

The manual provides a complete motor+driver matching table, covering:

48V DC, 240V AC, 400V AC, 480V AC four level busbar

Peak torque 0.48-104Nm, continuous torque 0.22-54Nm

Rated speed 600-10000rpm, suitable for different working conditions

Protection, authentication, and attachments

protection function

Phase to phase/ground short circuit, overvoltage, undervoltage, over temperature

I ² t current limiting, feedback loss, and over tolerance protection

certification

CE（EMC+LVD）、UL508C、cUL

Standard Appendix

Connecting cables, braking resistors, filtering components, terminal kits

Debugging software: ToolPAC, 930WIN, 950IDE

Typical application scenarios

Semiconductor equipment, electronic assembly

Packaging machinery, flying saw/cutting

Robots, XY platform

Material conveying, special machine tools