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Kollmorgen LE10702

Product Identity:​ Legacy Kollmorgen servo drive module code from the SERVOSTAR CD / LE sub-family (LE = low-power CD-class digital servo amplifier). Not an AKM motor; not a Goldline EB motor despite similar numbering—LE10702 is a drive/option board identifier found inside SERVOSTAR CD 3/6 A chassis.

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Detailed content

  • Product Introduction:​ Belongs to the SERVOSTAR CD series of compact digital servo amplifiers (3 A, 6 A, 10 A, 20 A frames). The “LE10702” string appears as a PCB/option label (e.g., LE = logic/expansion board, 10702 = revision). Drives brushless rotary servo motors with resolver or encoder feedback.
  • Technical Specifications (CD-class reference):
    • Output Current:​ 3 / 6 / 10 / 20 A RMS depending on chassis (CR03xxx / CR06xxx / CR10xxx)
    • Supply:​ 230 VAC single-phase or 310 VDC bus
    • Control:​ Digital vector, torque/velocity/position
    • Feedback:​ Incremental encoder, resolver, sin/cos
    • Communication:​ CANopen, optional SynqNet/Ethernet on newer CD variants
    • Protection:​ IP20, over-current, over-voltage, I²t motor thermal model
  • Functional Features:​ Auto-tuning, analog command input, electronic gearing, compact book-size form factor.
  • Application Scenarios:​ Older machine tools, textile machinery, converting equipment, legacy retrofit where CD-series form factor is mandated.
  • Installation Requirements:​ Panel mount, vertical orientation, 230 VAC isolation transformer recommended, resolver/motor cable shielding mandatory.
  • Usage Notes:​ Obsolete line; spares only. Firmware must match motor compensation card. Not directly replaceable by AKD without rewiring and parameter rebuild.
Kollmorgen BDS4A-255J-0014
  • Product Name:​ BDS4A Series Analog/Digital Servo Amplifier (55 A continuous, 230 VAC class)
  • Product Introduction:​ Member of the legacy BDS4 family—microprocessor-controlled PWM amplifier with IGBT power stage, used to drive Kollmorgen brushless servo motors (e.g., Goldline B-series) on older CNC and special machinery. “255” = 55 A continuous rating, “J” = specific compensation/motor match firmware, “0014” = hardware/firmware revision.
  • Technical Specifications:
    • Continuous Output:​ 55 A RMS
    • Peak Output:​ 110 A RMS for 2 s
    • Input Bus:​ 310 VDC (derived from 230 VAC rectified)
    • AC Supply:​ 230 VAC
    • Control:​ Torque-angle microprocessor control, analog ±10 V command, digital I/O
    • Feedback:​ Resolver primary, configurable to quadrature sim-encoder
    • Cooling:​ Forced fan
    • Compensation:​ Removable motor compensation cards for Goldline/BDM motors
  • Functional Features:​ Precise torque and velocity control, removable option cards, analog and digital I/O, rugged industrial build.
  • Application Scenarios:​ Legacy machine tools, metal forming, web processing lines, aerospace test rigs built in 1990s–2000s.
  • Installation Requirements:​ Rear-panel power lugs (#6-32 hardware), fan airflow path unobstructed, resolver shielding separated from power cabling, 24 V logic supply stable.
  • Usage Notes:​ Discontinued—repair-only through authorized centers (e.g., Motor Systems Inc.). Must set compensation card to matched motor winding or risk oscillation.

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