Allen-Bradley 2098-DSD-020X | Ultra 3000 Drive Replacement

Product Overview

The Allen-Bradley 2098-DSD-020X is an Ultra 3000 digital servo drive designed for single-phase AC input and servo motion applications requiring integrated indexing capability. Rockwell Automation identifies this exact catalog number as an Ultra 3000 2 kW Servo Drive and lists it as a discontinued product, with the official discontinuation date of December 31, 2022. The drive accepts 100–240 VAC single-phase input, operates from a 47–63 Hz supply, and provides up to 10 A continuous output current and 30 A intermittent output current. At 230 VAC input, its continuous output power is rated at 2.0 kW.

For Allen-Bradley 2098-DSD-020X, the “X” suffix is important because this configuration includes indexing functionality and does not provide native network connectivity. The drive uses a serial communication interface and supports auxiliary feedback/input configurations including A Quad B, Step/Direction, and CW/CCW modes. Published technical data specifies a 1880 µF DC bus, 400 VDC bus overvoltage level, and 30 A 0-peak intermittent output current.

The Allen-Bradley 2098-DSD-020X belongs to an older Ultra 3000 motion platform, so replacement work requires more than matching the 2 kW rating. Motor feedback, drive revision, firmware, indexing configuration, input mode, and the existing motion program all need to be checked. Rockwell Automation currently identifies 2198-E1015-ERS as the functional replacement category for the discontinued 2098-DSD-020X.

Product Introduction

A 2 kW servo drive can still be difficult to replace when the machine depends on an established indexing application. 2098-DSD-020X combines 100–240 VAC single-phase input, 10 A continuous output, 30 A peak output, and integrated indexing functions in the Ultra 3000 platform.

For a legacy Ultra 3000 servo drive replacement, preserve the existing motor, feedback, motion configuration, and drive revision information before changing hardware. Rockwell lists the product as discontinued and identifies a functional replacement.

Key Technical Specifications

Rockwell Automation confirms the discontinued status and 2 kW classification. The detailed electrical values are supported by published Ultra 3000 technical data.

Related Products

• 2098-DSD-020 — Closely related Ultra 3000 2 kW servo drive. It shares the 100–240 VAC single-phase input class and 10 A continuous output capability, but the exact feature/configuration set differs from the 020X indexing version.
• 2098-DSD-010X — Smaller Ultra 3000 indexing drive. Its continuous output capability is lower, making it appropriate for lower-power servo axes rather than a direct 2098- replacement.
• 2098-DSD-005X — Lower-capacity Ultra 3000 indexing drive for smaller servo motors. It belongs to the same drive family but has substantially lower current and power ratings.
• 2098-DSD-020-SE — Related Ultra 3000 2 kW drive configuration. Its feature set differs from the 020X and should be compared against the original machine’s motion requirements before substitution.
• — Related Ultra 3000 drive variant. The suffix identifies a different configuration, so the exact motor/feedback and communication requirements should be checked before substitution.
• 2198-E1015-ERS — Rockwell Automation’s listed functional replacement category for the discontinued 2098-. This is a newer Kinetix-family solution rather than a physical drop-in replacement.
• Ultra 3000 servo motors — The 2098- is intended to operate with compatible servo motors and feedback devices. Motor catalog number and feedback type must be matched during replacement.
• 2090-series motor cables — Appropriate motor and feedback cabling must be selected according to the connected servo motor and drive configuration rather than simply reusing a cable based on connector appearance.

2098-DSD-020X

Frequently Asked Questions

What is Allen-Bradley 2098- used for?

The 2098- is a 2 kW Ultra 3000 digital servo drive with indexing capability.

It controls a compatible servo motor while handling motion functions such as:

• Velocity regulation
• Position control
• Torque/current control
• Indexing
• Motor feedback
• Digital machine inputs and outputs

Rockwell classifies the exact unit as an Ultra 3000 2 kW Servo Drive.

What is the input voltage of 2098-?

The drive accepts 100–240 VAC RMS single-phase input at 47–63 Hz. Nominal input current is listed as 18 A RMS.

At 230 VAC, the drive provides 2.0 kW continuous output power.

What is the difference between 2098-DSD-020 and 2098-?

Both are 2 kW Ultra 3000 drives, but the catalog suffix identifies different configurations.

The 2098- specifically includes indexing functionality. Rockwell’s product identification describes the 020X as an Ultra 3000 2 kW servo drive, while the detailed product data identifies the X configuration as an indexing drive.

For a replacement, retain the complete catalog number rather than assuming the base 2098-DSD-020 designation is sufficient.

Can I replace 2098- with 2198-E1015-ERS?

Rockwell identifies 2198-E1015-ERS as the functional replacement, but this should not be interpreted as a physical plug-in replacement.

A migration should account for:

• Motor compatibility
• Feedback architecture
• Control wiring
• Motion program
• Indexing configuration
• I/O assignments
• Communication method
• Machine safety circuits
• Drive commissioning software

For an operating production machine, treat this as a migration project rather than a simple drive swap.

Can I hot-swap the 2098-?

No.

This is a servo power drive connected to an energized AC supply and a DC bus. The drive contains stored electrical energy even after incoming power is removed.

Before replacement, isolate the AC supply, follow the site’s lockout/tagout procedure, allow the DC bus to discharge, and verify the measured voltage is at a safe level before touching the power terminals.

Will I lose the indexing program when replacing the drive?

Potentially, yes, if the existing drive configuration has not been backed up.

Before removing the original drive, document or save:

• Indexing parameters
• Motor configuration
• Feedback configuration
• Velocity/position-loop settings
• Digital input assignments
• Digital output assignments
• Serial communication settings
• Fault configuration
• Motion profiles

The controller or machine PLC may hold part of the application, while drive-specific parameters can reside within the servo drive configuration. Do not assume that replacing the hardware automatically restores both.

Does 2098- have Ethernet?

No native network connectivity is specified for this model. The product is identified as having no network connectivity, while its serial interface supports RS-232/RS-422/RS-485 communication.

That matters when replacing an existing drive in a machine where the communication architecture depends on a serial connection.

How should I test a New Surplus 2098-?

For a surplus servo drive, I would test the power stage and control functions before declaring it ready for production.

Recommended acceptance sequence:

1. Verify the complete nameplate.
2. Record Series A/B/C or hardware revision.
3. Verify firmware revision.
4. Inspect the DC-bus and motor terminals.
5. Check for signs of previous overheating.
6. Power the drive from a controlled test supply.
7. Verify initialization and display/diagnostics.
8. Confirm serial communication.
9. Connect a known-compatible motor.
10. Verify feedback recognition.
11. Run at low speed first.
12. Test indexing functions.
13. Check current, fault status, and temperature.
14. Test digital inputs and outputs.
15. Record the complete test report.

Rockwell lists the 2098- as discontinued since December 31, 2022, so hardware revision and firmware verification are especially important when sourcing surplus units.