WhatsApp:+86 18150087953 WeChat: +86 18150087953 
Email：
Description
The 2098-DSD-005X is an Allen-Bradley (Rockwell Automation) Ultra 3000 series digital servo drive rated at 0.5 kW continuous output (2.5 A 0-peak / 1.8 A RMS continuous, 7.5 A 0-peak peak) for 200V-class servo motors. It accepts 100–240 V AC single-phase input and features standalone indexing capability with onboard programmable motion tables, 8 isolated digital inputs, 4 digital outputs, RS-232/485 serial communications, and a 15-pin CN2 feedback connector supporting incremental encoder or resolver-equipped servo motors—making it suitable for precision single-axis positioning, velocity control, and torque regulation without requiring a dedicated motion controller.
Application Scenarios
Imagine a label-converting machine OEM upgrading a flying-shear cutoff station that previously relied on a variable-frequency drive with open-loop accuracy issues causing cut-length drift at high line speeds. The engineering team installs a 2098-DSD-005X in the existing panel, pairs it with a Bulletin MPL-B310P servo motor via a 2090-series power and feedback cable, and programs five absolute index positions (cut lengths) directly into the drive’s non-volatile index table using UltraWare software. The drive receives a “Start Index N” command from the machine’s MicroLogix 1100 via discrete 24 V DC inputs on the 44-pin I/O header—no expensive motion module required. Electronic gearing mode lets the servo synchronize to an upstream encoder signal for registration-mark cutting. The 2098-DSD-005X solves the OEM’s pain point: achieving ±0.05 mm repeatability and 400 Hz velocity-loop bandwidth on a standalone axis, with local index storage, at a fraction of the cost of a networked multi-axis Kinetix solution—while fitting the same DIN-rail-adjacent panel space as a standard VFD.
Parameter
| Main Parameters | Value / Description |
|---|---|
| Product Model | 2098-DSD-005X (also referenced as 2098-DSD-005X-A / -DN variants) |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Category | Ultra 3000 Digital Servo Drive – Standalone Indexing Type (X suffix) |
| Input Voltage | 100–240 V AC RMS, Single Phase, 47–63 Hz; nominal 230 V AC |
| Input Current (Nominal) | 5.0 A RMS @ 230 V AC; inrush ≤ 20 A (0-peak, Series C hardware) |
| Continuous Output Current | 2.5 A 0-peak (≈ 1.8 A RMS); 0.5 kW @ 230 V AC input |
| Peak Output Current | 7.5 A 0-peak (intermittent, ≤ 1 s) |
| DC Bus Overvoltage | 400 V DC max |
| Control Modes | Position (Step/Dir or CW/CCW), Velocity, Torque, Standalone Indexing w/ Electronic Gearing |
| Feedback Interface (CN2) | 15-pin D-sub; supports incremental encoder (A/B/Z, 5 V diff), resolver (with option card), or commutation signals |
| Digital I/O (CN1) | 44-pin IDC: 8 optically isolated inputs (12–24 V DC sink/source), 4 optically isolated outputs (24 V DC, 50 mA sink) |
| Serial Communication | 9-pin D-sub RS-232 (local PC / UltraWare) + RS-485 (multi-drop to PLC or HMI) |
| External Logic Supply | +12 to +24 V DC @ ≤ 200 mA (required for digital I/O and encoder 5 V supply via external regulator) |
| Operating Temp / Humidity | 0 °C to +55 °C (32–131 °F); 5–95% RH non-condensing |
| Dimensions (H×W×D) | 198.1 × 144.3 × 72.6 mm (7.8″ × 5.68″ × 2.86″); panel mount with keyhole slots |
| Certifications | cULus Listed, CE (EN 61800-3 / EN 61000-6-2), TÜV, C-Tick |
Technical Principles and Innovative Values
- Innovation Point 1 – Standalone Indexing Without a Motion Controller: The 2098-DSD-005X “X” variant contains an onboard indexer capable of storing up to 64 absolute or relative move profiles with programmable acceleration/deceleration, dwell time, and homing sequences. These are triggered via the 44-pin digital inputs or serial command—eliminating the need for a PLC motion module or SERCOS/CIP Motion network in single-axis applications and significantly reducing system BOM cost.
- Innovation Point 2 – High-Bandwidth Digital Current Loop with Auto-Tuning: The drive’s 4 kHz current-loop update rate and 400 Hz velocity-loop bandwidth, combined with Rockwell’s UltraWare auto-tuning wizard, allow the 2098-DSD-005X to achieve stiff servo performance (high torque rigidity, low following error) even with varying inertial loads. The wizard measures load inertia ratio and suggests gain sets, reducing commissioning time versus manual tuning on legacy analog drives.
- Innovation Point 3 – Electronic Gearing & Registration Mark Following: The 2098-DSD-005X supports electronic gearing (ratio 1:1 to 32767:1, with phase offset) and registration-follow modes where the drive slaves its position to an external encoder input on the CN1 I/O header. This is critical for cut-to-registration, print-register, and flying-shear applications—functionality normally found only on higher-tier networked drives.
- Innovation Point 4 – Flexible Feedback & Legacy Motor Compatibility: Via the CN2 15-pin port and optional feedback option cards, the 2098-DSD-005X works with Allen-Bradley Bulletin MPL (Hiperface DSL not supported—use MPL with incremental encoder), TLY (TL-Series), and legacy Y- series / BSM servos with 5 V differential encoders or resolvers. This preserves investment in existing motor inventories during drive-only retrofits.
Application Cases and Industry Value
Case 1 – Carton Erector / Former Flight Bar Indexing:A contract packager retrofitted a worn mechanical cam-driven carton former with a servo-indexed flight bar. The 2098-DSD-005X drove a 0.4 kW MPL-B310P motor through a 5:1 planetary gearbox. Four index positions (small/medium/large carton depths) were programmed into the drive’s table and selected by the existing SLC 5/04 via 2-bit binary on the drive’s digital inputs. The changeover from mechanical cams to programmable indexing reduced format-change time from 15 minutes to under 30 seconds and eliminated cam-wear-related misfeeds. The packager extended the solution to three other lines using identical 2098-DSD-005X drives.Case 2 – Wire & Cable Take-Up Dancer Velocity Control:A wire-drawing line needed smoother take-up tension control than the existing DC drive could provide. The retrofit installed a 2098-DSD-005X in velocity mode controlling a 0.75 kW MPL servo motor. The dancer-arm potentiometer (0–10 V) was wired to the drive’s analog input (available on CN1 via jumper configuration), and the drive’s auto-tune function quickly stabilized the loop. The 2098-DSD-005X delivered <±0.5% speed regulation across the full 20:1 draw range, and its built-in stall detection flagged broken-belt conditions—preventing product scrap that previously went undetected with the old drive.
