BDS4-203H-206A2 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen BDS4-203H-206A2 is part of the BDS Industrial Servo Drives series and features a continuous output of 1.1 kVA with a continuous current of 3.0 A RMS per phase. This drive supports a main DC bus voltage range of 250 to 360 VDC and offers a maximum output voltage of 230 VAC. It has a peak output of 2.2 kVA and uses a 20 kHz current ripple frequency.
Internal Product Review
The BDS4-203H-206A2 is a Kollmorgen industrial servo drive with 1.1 kVA continuous output and 3.0 A RMS/phase continuous current. Peak capability reaches 2.2 kVA and 6.0 A RMS/phase, giving the drive strong response during changing load conditions. Speed regulation of 0.075%/°C and a 250-360 VDC main DC bus make the drive an excellent fit for precise motion applications.
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Product Description:
The BDS4-203H-206A2 is a digital servo amplifier from the BDS Industrial Servo Drives series manufactured by Kollmorgen. Designed to regulate three-phase permanent-magnet motors in automated machinery, the unit converts a regulated DC link into variable-frequency, variable-voltage output so motion controllers can position axes precisely. By closing the current and velocity loops internally, the drive supports applications such as electronic gearing, pick-and-place heads, and indexing tables where tight velocity control and a compact cabinet footprint are priorities.
Under rated conditions, the drive delivers a continuous phase current of 3.0 A RMS per phase, translating into a sustained apparent power of 1.1 kVA at the output bridge. Temporary overloads are handled by a peak capability of 6.0 A RMS per phase and 2.2 kVA, allowing acceleration of medium-inertia loads before thermal limits are reached. The power stage can generate up to 230 VAC line to line, while a compensation inertia range from 0 to 5 × Jm allows the velocity loop to be tuned for different reflected masses. A 20 kHz current ripple frequency and an overall form factor not exceeding 1.01 keep RMS heating low. Speed error is held to 0.075% per °C, so process repeatability is maintained during ambient temperature changes.
The DC bus can be supplied between 250 VDC and 360 VDC, allowing multiple drives to share a common front-end rectifier. Internally, the IGBT bridge switches at 10.0 kHz, balancing switching loss and current ripple. The resulting heat generation is limited to 40 W, which can usually be removed through panel convection. The control electronics operate from either of two logic-bus ranges: ±14.5 to ±26 VDC at 0.25 A or +6.5 to +14 VDC at 0.50 A. These ranges simplify cable routing from compatible machine control supplies. Position feedback is processed by a resolver interface driven at 7 kHz, and the resulting digital conversion maintains a maximum accuracy of 22 arc-minutes during motion profiling.
