The 410-9741 is a Letourneau speed card used in Letourneau industrial drive system installations for motor speed feedback acquisition and processing. Speed cards receive tachometer or encoder signals from drive motors, converting those signals into the speed feedback values used by the drive speed control loop for closed-loop regulation. Accurate, reliable speed feedback is essential to drive system stability — missing or corrupted speed feedback causes the control loop to lose regulation, potentially resulting in motor overspeed or underspeed conditions in the high-power Letourneau systems deployed in crane, offshore drilling, and heavy industrial material handling applications. Powergenics offers professional repair services for Letourneau speed monitoring electronics including the 410-9741. Call 800-861-9773 for pricing and availability.
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Powergenics repairs and supplies industrial circuit boards with a 3-year warranty and 98% success rate. We are SDVOSB certified and hold a GSA contract. Rush turnaround available.