LS-231 is all digital multifunctional single axis servo controller with integrated power amplifier designed for applications requiring sinusoidal control of rotary or linear brushless motors up to 1.5 HP. DC (brush) and voice coil motors are also supported. LS-231 supports coordinated motion of several motors. Up to 31 intelligent servo drives can be controlled over a multi-drop full duplex RS-485 network in a distributed motion control environment. Standard RJ-45 connectors and commercially available cables are used for daisy chaining of the modules. LS-231 can be used as a stand-alone controller with analog input, step and direction input, or quadrature encoder input. The servo loop can be configured for single or dual encoder feedback.  LS-231 is equipped with various safety features such as short circuit protection for the motor and amplifier, limit switch inputs, hardware stop input, over/under voltage shutdown and encoder presence control. The maximum motor output current and overload time can be limited by software.

51.2 uSec servo loop rate Sinusoidal motor phases commutation
Programmable torque loop Path point buffer for coordinated motion control
Motors supported:
  • Panasonic A and S series
  • Brushless Rotary and Linear
  • Motors with index coded commutation
  • Voice Coil and Brush commutated

Controller modes:

  • Distributed servo
  • Analog input
  • Step & direction, step positive/step negative
  • Quadrature master encoder
Programmable single or dual feedback servo loop Comprehensive motor output short-circuit protection
12A/20A peak, 8A/12A continuous current Adjustable motor current limit and overload time
Single power supply - 18 to 180 V DC Backup power supply - 18 to 180 V DC
32-bit position, velocity, acceleration, 
16-bit PID filter gain values		 Over/under voltage shutdown
Overheating protection Emergency stop input
Forward and reverse limit switches, home input Communication speed 19.2 Kbps-1.25 Mbps
Command rate up to 10000/sec PWM frequency - 20 KHz
Encoder transition rate up to 10 MHz Small footprint (5.5" x 3.5" x 0.85")
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