Product Description:

The BDS4A-106J-0001\204B2 is a servo drive in the BDS Industrial Servo Drives series from Kollmorgen. It converts a regulated DC bus into controlled three-phase output that powers brushless servomotors on packaging machines, pick-and-place systems, and indexing tables. Acting as the power bridge between the motion controller and actuator, the drive modulates current while receiving position feedback through an encoder or resolver interface, allowing closed-loop speed and torque control within an automated cell.

The power section supplies a continuous phase current of 6.0 A RMS, supporting steady mechanical loads without overheating. That current yields a sustained output of 1.0 kVA at 160 VDC, provided the supply remains below the bus ceiling of 225 VDC and above the 125 VDC cutoff. A pulse-width modulator running at 10.0 kHz shapes the motor waveform, while an additional 20 kHz ripple component stays outside most servo control bands. For brief accelerations, the amplifier delivers up to 12.0 A RMS for two seconds, accommodating inertia mismatches as high as the 0–5 × Jm compensation range. Maximum line-to-line output reaches 115 VAC, and the RMS-to-average form factor remains at or below 1.01, limiting harmonic distortion. Position data is accepted from an electronic encoder output or a 7 kHz resolver excitation source.

Short-term loading can raise power transfer to 2.0 kVA at 160 VDC, enabling torque surges without overstressing the IGBTs. Resolver feedback maintains the rotor angle within 8 arc min, permitting precise positioning on tightly coupled axes. Speed drift due to temperature is held to 0.075% per °C, so conveyor or spindle rates remain stable across normal cabinet conditions. Internal losses amount to only 50 W, making heat removal straightforward. The remaining heat is carried into the motor windings and removed by the machine's existing airflow.