B&R 8JSA51.R0045D000-0 Replacement for ACOPOSmulti

Product Overview

B&R 8JSA51.R0045D000-0 Replacement for ACOPOSmulti: Seamless Transition from Legacy Servo Systems

The B&R 8JSA51.R0045D000-0 is a synchronous servo motor from the ACOPOSmulti drive system platform, rated at 4.5 Nm continuous torque. As B&R’s ACOPOSmulti ecosystem continues to evolve, many facilities operating older ACOPOSmulti configurations — including legacy axis modules such as the 8BVI0014HWS0.000-1 and 8BVI0028HWS0.000-1 — are now planning structured migrations to maintain production continuity and reduce unplanned downtime risk.

This product page is designed to support engineers and procurement teams executing a controlled replacement or upgrade of the 8JSA51.R0045D000-0 within an existing ACOPOSmulti servo architecture. Whether you are replacing a mechanically worn unit, substituting a discontinued variant, or upgrading a multi-axis gantry or conveyor system, this guide covers wiring compatibility, communication protocol continuity, physical installation constraints, and commissioning considerations.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful ACOPOSmulti servo motor replacement rarely involves the motor alone. In most retrofit and modernization projects, the 8JSA51.R0045D000-0 is installed alongside a coordinated set of drive and control components. The following describes the typical upgrade pathway and the associated components engineers encounter during commissioning.

The motor connects directly to an ACOPOSmulti axis module — commonly the 8BVI0014HWS0.000-1 (14 A continuous) or the 8BVI0028HWS0.000-1 (28 A continuous) — via a shielded motor power cable and a separate encoder cable. When replacing the motor, it is essential to verify that the axis module firmware supports EnDat 2.2 feedback; older axis modules running firmware below a certain revision may require a firmware update via the Automation Studio engineering environment before the new motor is recognized correctly.

The axis modules themselves are powered by an ACOPOSmulti supply module such as the 8B0C0160HWS0.000-1, which provides the DC bus voltage to the entire multi-axis segment. If the existing supply module is operating near its rated capacity, adding a higher-torque motor may require a supply module capacity review. In multi-axis installations, the 8B0C0320HWS0.000-1 supply module is often selected to provide headroom for peak regenerative loads.

Communication between the ACOPOSmulti drive system and the B&R PLC — typically an X20CP1586 or X20CP3586 controller — is handled via POWERLINK, B&R’s deterministic Ethernet-based fieldbus. No changes to the POWERLINK network topology are required when replacing a motor of the same frame size and torque class, as the axis module address and node configuration remain unchanged. The X20IF10D1-1 POWERLINK interface module

may be present in installations where the controller does not have an onboard POWERLINK port.

For wiring, the standard 8BCM0005H000.000-0 motor cable assembly (5 m) and 8BCF0005H000.000-0 encoder cable assembly are typically reused without modification when performing a like-for-like motor swap. If the cable assemblies show wear or the installation requires a different cable length, replacement cable sets are available in 5 m, 10 m, and 20 m variants. Proper cable shielding and grounding at the motor terminal box are critical to maintaining EMC compliance in the upgraded system.

In applications where the servo axis interfaces with a safety system, the 8BVI axis module’s integrated Safe Torque Off (STO) function is preserved across the motor replacement — no changes to the safety PLC program or the X20SL8100 safety module wiring are required, provided the motor cable shield is correctly terminated.

For facilities performing a broader control cabinet modernization, the motor replacement is often combined with an upgrade of the ACOPOSmulti plug-in module set and a reconfiguration of the X20 I/O backplane to accommodate additional digital and analog I/O channels required by the new machine program. The X20DI9371 digital input module and X20AO4622 analog output module are commonly added during such upgrades to support enhanced process feedback and actuator control.

Retrofit Guidance FAQ

Q: Can I reuse the existing motor power and encoder cables?
A: Yes, in most cases. The 8JSA51.R0045D000-0 uses the standard ACOPOSmulti M23 power connector and EnDat 2.2 encoder interface. Provided the existing cables are undamaged and correctly rated for the motor’s current draw, they can be reused without modification. Verify cable part numbers against the B&R cable selection guide before reuse.

Q: Do I need to modify the Automation Studio project after replacing the motor?
A: Typically, no — if the replacement motor is the same frame size and torque class. The axis module configuration in Automation Studio references the motor by its model number. You will need to update the motor model reference in the axis configuration and re-download the project to the controller. No changes to the motion program logic are required for a like-for-like replacement.

Q: Is the POWERLINK network affected by the motor replacement?
A: No. POWERLINK communication is managed at the axis module level. The motor replacement does not change the node address, cycle time, or network topology. The axis module will continue to communicate with the X20 controller without any network reconfiguration.

Q: What are the physical installation requirements?
A: The 8JSA51.R0045D000-0 uses a size-51 flange, which is a direct bolt-on replacement for other size-51 ACOPOSmulti motors. No machining or adapter plates are required. Verify the shaft diameter and keyway specification against the driven load coupling before installation.

Q: How do I handle the brake circuit if my existing motor had a holding brake?
A: The 8JSA51.R0045D000-0 (D000 suffix) does not include a holding brake. If your application requires a brake, you must select a brake-equipped variant (suffix D001 or similar). Installing a non-brake motor in a brake-required application (e.g., vertical axis) without an external brake solution is a safety risk and must not be done.

Q: What commissioning steps are required after installation?
A: After mechanical installation and cable connection, update the motor model in the Automation Studio axis configuration, download the updated project, and perform a motor identification run (auto-tuning) via the axis module. Verify encoder feedback signal quality and check for any axis faults before resuming production. A test cycle at reduced speed and load is recommended before returning to full production speed.

Warranty Assurance

Every 8JSA51.R0045D000-0 unit shipped by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each unit undergoes a pre-shipment functional inspection to verify encoder signal integrity, winding resistance, insulation resistance, and mechanical shaft runout. Units that do not meet specification are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides a structured replacement support process: the defective unit is returned to our Xiamen facility, inspected, and a replacement unit is dispatched within 5 business days of confirmed fault diagnosis. Customers are not required to wait for the returned unit to be fully processed before a replacement is shipped in cases where production continuity is at risk.

Our after-sales response team is available Monday through Saturday, 09:00–18:00 CST, and can be reached at [email protected] or +86 18359293191. For urgent replacement requirements, expedited shipping options (DHL Express, FedEx Priority) are available to most destinations worldwide, with typical transit times of 3–5 business days to Europe and North America.

TOPNLMS maintains a standing inventory of ACOPOSmulti servo motors and associated drive components to support rapid fulfillment for both planned maintenance and emergency breakdown scenarios. Procurement teams are encouraged to contact us for volume pricing, lead time confirmation, and export documentation support (including CO, packing list, and commercial invoice in the format required by your customs authority).

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