LS-173U is an enhanced version of the standard LS-173 servo drive with additional hall velocity mode for applications using brushless motors without optical encoder. Up to 31 intelligent 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-173U is equipped with various safety features such as short circuit protection for the motor and amplifier, over travel limit switch inputs, emergency stop input, over and under voltage shutdown. The maximum motor output current can be limited by setting of dipswitches.
HALL VELOCITY MODE and ENCODER MODE 12/20 A peak, 8/12 A continuous current
Motors supported:
  • Brushless 60/120° commutated (AC)
  • Brush-commutated (DC)

Comprehensive motor output short-circuit protection:

  • Output to output

  • Output to ground

  • Output to power
Single power supply - 12 to 90 VDC Adjustable motor current limit
32-bit position, velocity, acceleration, 
16-bit PID filter gain values		 Over/under voltage shutdown
Overheating protection
Emergency stop input Forward and reverse overtravel limits
Communication speed 19.2-115.2 Kbps Command rate up to 1000/sec
Servo rate - 2 KHz PWM frequency - 20 KHz
Encoder transition rate up to 1.6 MHz Small footprint (5" x 3.3" x 0.85")