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Kollmorgen BDS4A-240J-000
Product Brief: Compact Eurocard-format 4-quadrant PWM servo amplifier for 3-phase brushless (BLDC/PMSM) motors with sinusoidal or trapezoidal commutation. Accepts ±10 V torque/speed command and resolver or Hall-based commutation feedback. Intended for standalone or rack-mount use in legacy machine tools and special machinery. “240” = 240 VAC 1Φ/3Φ input (typ. 208–240 VAC 3Φ). “J” = Specific I/O & enable configuration (Enable HI, ±10 V command, tacho/encoder follower options — exact J-pinout per BDS4 manual). “-000” = No brake option card / standard unit.
Detailed content
Input Supply Voltage (Power Stage): 208 – 240 VAC 3Φ (some variants accept 115/230 VAC 1Φ — 240J typically 3Φ 208–240 VAC)
DC Bus (Internal): ≈ 325 VDC
Output Current (Continuous, RMS): Typically 6 A continuous / 12 A peak for A-suffix BDS4 (A = low/mid current variant; BDS4B = higher); verify nameplate — BDS4A commonly 6 A cont / 12 A pk
PWM Switching Frequency: ≈ 16 kHz (typical for BDS4)
Command Input: ±10 V DC analog (torque or velocity mode selectable via DIP switch)
Commutation Sensing: Hall sensors (3× 15 V open-collector) OR resolver (with resolver-to-digital converter option card on some BDS4 variants — base J-config may be Hall-only; confirm from actual unit label)
Enable / Inhibit Inputs: Optically isolated 24 V (HI = enable, LOW = inhibit / coast)
Status Indicators: LEDs for Power, Enable, Fault, Overcurrent, Overtemp
Fault Protections: Overcurrent, DC bus over/undervoltage, heatsink overtemperature, motor open-phase detection, command error
Dimensions (Eurocard): 100 mm (H) × 160 mm (D) × 20 mm (W single slot) approx.; mounts in BDS rack or on DIN-rail adapter plate
Cooling: Forced air or conduction cooling via heatsink / rack backplane
Operating Temperature: 0 °C to +45 °C (derate above)
Protection Class: IP00 (open frame — installs inside cabinet)
Compliance: CE (legacy), UL recognized component
Applicable Industries: Legacy machine retrofits (replacing earlier Kollmorgen SERVOSTAR 300-era systems), woodworking CNC retrofits, textile machinery, older printing press axes
Installation Requirements: Mount in grounded metal cabinet with adequate ventilation; connect 3Φ power via isolating contactor + line filter; connect motor U/V/W observing phase sequence; tie shield of feedback cable to drive chassis ground; set DIP switches for motor pole count and feedback type before first run.
Usage Notes: BDS4 is obsolete — replacement is S300/S700/AKD families; do not interchange with AKD directly without checking voltage/current match; if resolver-commutated verify RDC (resolver-to-digital) option card is populated; fault reset via enable toggle or front pushbutton; store DIP switch settings record during commissioning.
