Allen-Bradley 2098-DSD-020-SE – 20A Ultra3000 Digital Servo Drive with Safe-Off | Kinetix Platform
The Allen-Bradley 2098-DSD-020-SE is a high-performance digital servo drive from Rockwell Automation’s Ultra3000 series, engineered for precision motion control in demanding industrial automation environments. The -SE suffix designates the integrated Safe-Off (STO – Safe Torque Off) safety function, enabling Category 3 / PLd machine safety compliance without external contactors — reducing panel footprint and wiring complexity.
Designed for procurement engineers and system integrators sourcing replacement or expansion drives for existing Kinetix and Ultra3000 motion architectures, this unit delivers 20A continuous output current with full digital tuning capability via Ultraware software.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Catalog Number | 2098-DSD-020-SE |
| Series / Platform | Ultra3000 Digital Servo Drive |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Continuous Output Current | 20 A (rms) |
| Peak Output Current | 40 A (rms) |
| Input Voltage | 200–240 VAC, 3-Phase, 50/60 Hz |
| DC Bus Voltage | 270–340 VDC |
| Safety Function | Safe-Off (STO) — Category 3 / PLd per EN ISO 13849-1 |
| Feedback Supported | Incremental Encoder, Absolute Encoder (Stegmann Hi-resolution) |
| Communication | RS-232 (Ultraware), Analog ±10V, Step/Direction, Master/Slave |
| Operating Temperature | 0 °C to +45 °C (ambient) |
| Storage Temperature | -40 °C to +85 °C |
| Humidity | 5–95% RH, non-condensing |
| Protection Rating | IP20 |
| Approvals | UL, CE, cUL |
| Weight | 3.5 kg (approx.) |
| Mounting | Panel mount, DIN rail compatible |
Proven Application Environments
- CNC Machining Centers — Axis interpolation requiring tight velocity and position loop bandwidth
- Packaging Machinery — High-cycle indexing and registration control with Safe-Off for guard interlocking
- Semiconductor Handling — Sub-micron positioning with high-resolution encoder feedback
- Robotics & Gantry Systems — Multi-axis coordinated motion via Master/Slave analog coupling
- Printing & Converting — Web tension control and register mark synchronization
- Assembly Automation — Torque-controlled press-fit and fastening applications
Engineering Advantages
- Integrated Safe-Off (STO): Eliminates external safety contactors; reduces panel wiring and MTTR
- Ultraware Software Tuning: Full digital auto-tune, oscilloscope trace capture, and parameter backup via RS-232
- Wide Feedback Compatibility: Supports incremental and Stegmann absolute encoders — drop-in replacement for existing Ultra3000 installations
- Compact Form Factor: High power density minimizes cabinet space vs. legacy analog drives
- Proven Reliability: MTBF >100,000 hours in controlled industrial environments
- Global Certifications: UL, CE, cUL — accepted in North American, European, and Asian machine safety regimes
System Architecture & Signal Flow
The 2098-DSD-020-SE operates as a standalone digital servo drive or as a subordinate axis in a multi-drive Ultra3000 system. The command interface accepts ±10V analog velocity/torque reference, Step/Direction pulse trains, or Master Encoder following for electronic gearing. The Safe-Off circuit monitors a dual-channel 24VDC safety input; upon de-energization, gate signals to the IGBT bridge are disabled within <10 ms, achieving STO state without removing AC power — enabling rapid restart after guard re-engagement.
Feedback signals route through a 15-pin D-sub connector supporting incremental TTL encoders (up to 4M lines/rev equivalent) and Stegmann absolute encoders with battery backup. The RS-232 port connects to a PC running Ultraware for commissioning, parameter storage, and real-time diagnostics.
Sourcing & Quality Verification
- All units sourced from authorized distributors or verified OEM surplus channels
- Pre-shipment inspection: visual, power-on functional test, and firmware version verification
- Catalog number and date code confirmed against Rockwell Automation product records
- Anti-counterfeit checks: label authenticity, PCB markings, and component traceability
- Packaging: ESD-safe anti-static bag, foam-lined carton, humidity indicator card
Procurement Process
- Submit RFQ — Contact support@konmask.com or call +0086 198 5928 8691 with your required quantity and delivery timeline
- Receive Quote — Pricing confirmed within 24 hours with lead time and stock status
- Order Confirmation — PO accepted; payment via T/T, PayPal, or credit card
- Quality Inspection — Unit tested and documented before dispatch
- Shipping — DHL / FedEx express worldwide; tracking provided same day
- After-Sales Support — Technical assistance and warranty claim handling via dedicated engineer team
Technical FAQ
Q: Is the 2098-DSD-020-SE compatible with Allen-Bradley MPL servo motors?
A: Yes. The Ultra3000 series is designed to pair with Allen-Bradley MPL, MPM, and MPF servo motors. Motor parameters are pre-loaded in Ultraware’s motor database for rapid commissioning.
Q: What is the difference between 2098-DSD-020 and 2098-DSD-020-SE?
A: The -SE variant adds the integrated Safe-Off (STO) safety function. The base 2098-DSD-020 does not include STO hardware. If your machine safety design requires Category 3 / PLd, the -SE is required.
Q: Can this drive be used with a ControlLogix or CompactLogix PLC?
A: The Ultra3000 communicates via analog or pulse interfaces rather than EtherNet/IP. For native Logix integration with motion instructions (MAM, MAS, etc.), consider the Kinetix 6000 or Kinetix 5500 series. The 2098-DSD-020-SE is best suited for standalone or analog-commanded axis applications.
Q: Do you provide Ultraware software or parameter files?
A: We can provide guidance on obtaining Ultraware from Rockwell Automation’s product download portal. If you have existing parameter files (.uws), we can assist with verification during commissioning support.
Q: What warranty is provided?
A: All units carry a 12-month warranty against manufacturing defects and functional failure under normal operating conditions. DOA units are replaced or refunded within 5 business days of confirmed fault report.
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