2198-D020-ERS3 AB Kinetix5700 Dual Axis Inverter 2198D020ERS3 Genuine New

Part Number: 2198-D020-ERS3

Manufacturer: Allen-Bradley (Rockwell Automation)

Product Type: Dual-Axis Inverter Module (Axis Module)

Product Family: Kinetix 5700

Current Loop Bandwidth: 1000 Hz

Velocity Loop Bandwidth: 400 Hz

The 2198-D020-ERS3 is a dual-axis inverter module in the Kinetix 5700 servo drive system from Allen-Bradley. It serves as the inverter stage, converting DC bus voltage into variable-frequency three-phase AC output to drive servo motors.

This module does not contain an AC input rectifier and draws operating power exclusively from the shared DC bus supplied by a separate Kinetix 5700 Bus Supply module (2198-Pxxx or 2198-Rxxx series).

The 2198-D020-ERS3 controls two independent axes from a single module. Each axis features its own output stage with 20 A peak / 8 A continuous current rating and independent ERS3 safety channel. Axis 1 and Axis 2 share the DC bus connection but operate independently for motion control, feedback, and safety states.

The ERS3 suffix indicates integrated safety features including Safe Torque Off (STO) and Safe Stop 1 (SS1) implemented in hardware on both axes, certified to SIL 2 / PLd standards.

The Kinetix 5700 utilizes a shared DC bus architecture that separates AC-to-DC conversion from DC-to-AC inversion into distinct components:

• Bus Supply modules (2198-Pxxx for regenerative, 2198-Rxxx for non-regenerative) rectify incoming three-phase AC and maintain the shared DC bus
• Inverter modules, including the 2198-D020-ERS3, draw from the DC rail and generate variable-frequency output for motors

The 2198-D020-ERS3 cannot be powered directly from AC supply and requires a functioning DC bus from a correctly sized Bus Supply module to operate.

All inverter modules in a Kinetix 5700 bus group share the same DC rail, enabling energy exchange between axes. When one axis decelerates, its motor acts as a generator and returns kinetic energy to the DC bus, which other accelerating axes can immediately utilize.

This energy recycling is particularly beneficial in machines with coordinated multi-axis motion featuring interleaved acceleration and deceleration sequences, such as pick-and-place systems, flying cutters, and winding applications.

The 1000 Hz current loop bandwidth enables the inverter's current regulation to execute 1000 times per second, comparing actual motor current against commands and correcting output voltage switching patterns to eliminate errors.

The 400 Hz velocity loop bandwidth determines how quickly the axis responds to speed changes and rejects mechanical disturbances like resonance, friction transitions, and variable load torque.

Each of the two axes includes independent ERS3 safety channels. STO on Axis 1 does not affect Axis 2, and SS1 on Axis 2 does not affect Axis 1, allowing different safety requirements for various machine zones.

STO removes the inverter's gate drive signals, inhibiting output transistors and preventing motor torque. SS1 commands the axis to decelerate to zero speed, confirms the stop, then applies STO. CIP Safety protocol carries safety state data over the same Ethernet/IP network used for motion data.

This indicates the inverter module has no DC bus voltage. Check the Bus Supply module's status to confirm it is powered, its precharge sequence has completed, and it shows no faults. Inverter modules cannot operate until the DC bus reaches nominal voltage.

Non-regenerative Bus Supplies handle regenerated energy through braking resistors. If regenerated power during deceleration exceeds the resistor's rating, bus voltage will rise and trigger overvoltage faults. For applications with frequent, high-energy deceleration, a regenerative Bus Supply (2198-Rxxx) is recommended.

The integrated STO and SS1 functions are certified to SIL 2 per IEC 62061 and Performance Level d (PLd) per ISO 13849-1. Certification requires proper installation, configuration, and validation per Kinetix 5700 safety documentation.

No. The Bus Supply operates independently of individual inverter modules. The new inverter module requires axis configuration download from the Logix controller project and appropriate tuning before operation.

Kinetix 5700 DC bus hardware is selected by the inverter module's current class. The 2198-D020-ERS3 uses hardware matched to the 20 A dual-axis class. Using improperly sized bus bar hardware will result in physical mismatches.