Description
The B&R 8AC122 functions as a plug-in interface card for the ACOPOS servo drive series, adding a CAN bus interface to the drive slot. This module inserts directly into one of the available fieldbus slots on the drive housing to handle real-time cyclic data exchange and parameter configuration.
Are you looking at an axis-communication fault on a packaging line or a CNC machine? We maintain active physical inventory of this interface card at our regional logistics facility. Your order will clear our warehouse within 24 to 48 hours. Each unit carries a comprehensive 12-month warranty starting the day it arrives at your plant.
Inventory, Warranty, and Logistics Summary
- Unit Condition: New Original (Factory Sealed)
- Availability: In Stock
- Standard Lead Time: 1 to 2 business days worldwide
- Warranty Period: 1 Year
- Reference Price: Global industrial components experience price adjustments due to supply constraints and raw material shifts. The listed price is a baseline index—contact our team for a binding commercial quote.

B&R 8AC122 Hardware Configuration and Technical Specifications
When planning network topology, power consumption from the drive’s internal bus determines how many option modules you can populate. The 8AC122 draws directly from the internal supply of the main ACOPOS unit, removing the need for external auxiliary power lines.
| Parameter | Specification Value |
| Module Type | CAN bus interface |
| Connection | 1x 9-pin D-sub male connector |
| Network Isolation | Optocoupler isolation, 500 V DC |
| Maximum Baud Rate | 1 Mbit/s |
| Internal Power Consumption | Max 1.5 W |
| Diagnostics Indicators | 2 LEDs (Network Status, Module Status) |
| Slot Compatibility | ACOPOS slot 1 or slot 2 |
Field Deployment Observations and CAN Network Layout
During field deployments of ACOPOS systems on older CANopen lines, we discovered that communication instability often tracks back to improper shielding termination at the D-sub connector. Well, technically the module supports automatic baud rate detection, but only if your network master broadcasts a valid sync frame upon boot-up. If you run mixed-generation nodes, explicitly define the network speed in your Automation Studio project rather than relying on automatic matching.
Pay attention to the network status LED near the top of the interface. A blinking green light indicates the module is waiting for a configuration state from the PLC master. If it flips to solid red, you have an active bus-off condition caused by a missing termination resistor. In our experience, inserting a standard 120 \Omega resistor across pins 2 and 7 at the physical ends of the bus segment resolves line reflections immediately. Don’t underestimate this basic termination; missing resistors will drop packets when the servo motors cycle up to full current.
Global Procurement and Customs Compliance Logistics
Incoterms and Transfer of Risk
We process international shipments under EXW (Ex Works) or FCA (Free Carrier) terms from our main regional hubs. For urgent machine-down scenarios, we regularly utilize DAP (Delivered at Place) terms with global air express carriers. Under DAP arrangements, our logistics team manages transit risks completely until the shipment reaches your loading dock.
Customs Tariffs and HS Code Classification
To ensure smooth processing through international entry checkpoints without border delays, all shipping manifests carry the standardized Harmonized System code:
- HS Code: 8538.90.81 (Parts suitable for use solely or principally with electrical control apparatus)
Import duties depend entirely on your country’s trade policies. Shipments headed to European or North American facilities might be subject to distinct administrative fees, whereas parts entering specific industrial zones can bypass specific import duties when the correct processing documentation accompanies the air waybill.
Secure Trade Finance Solutions
Procurement officers can select from several verified payment methods to fit their risk assessment guidelines:
- Telegraphic Transfer (T/T): Direct bank transfer for immediate warehouse release.
- Letter of Credit (L/C): Available for major facility upgrade projects. We accept irrevocable letters of credit issued by top-tier global banking institutions, payable at sight.
Frequently Asked Questions
Can I install the 8AC122 into an ACOPOS drive while it is powered up?
No. You must completely disconnect the main three-phase power and the 24 V DC auxiliary supply from the ACOPOS drive before inserting or removing the module. Plugging the card into a live slot will cause an internal bus fault and can damage the underlying drive motherboard circuitry.
Does this module require an external node address switch?
The 8AC122 does not have physical rotary or DIP switches for node addressing. Address assignment occurs purely through software configurations inside your B&R Automation Studio project environment, which automatically assigns the node parameters via the CAN network based on the slot position. Verify your hardware topology tree in the project configuration file before attempting an online download.
How do you protect the static-sensitive pins during international transport?
Every module goes into an ESD-protective conductive bag before final packaging. The unit is then suspended inside a rigid, thick-walled cardboard box lined with dense foam inserts to prevent structural deformation or static discharge during long-distance international air transit.









