For most manufacturers considering welding automation, the first question isn't about the robot - it's about the welder already sitting on the floor.
Replacing a Fronius TPS/i or a Lincoln Power Wave that's running well feels wasteful. The real question is whether a robotic welding system can be built around existing equipment, rather than replacing it entirely.
The short answer is yes - but the connection between robot and power source is what makes or breaks the integration.
Why the Interface Matters
A robotic welding system doesn't just move a torch. The robot controller needs to communicate with the welding power source in real time - sending parameters like wire feed speed, voltage, and arc length correction, and receiving feedback on arc status. That communication happens through a fieldbus protocol.
The most common protocols in use today are DeviceNet, EtherCAT, and PROFINET. Fronius uses its RCU protocol over EtherCAT; Lincoln ArcLink XT runs over DeviceNet or EtherCAT. If the robot controller and the power source don't share a compatible communication layer, integration either fails or requires costly custom engineering. EVS Robot
This is where most manufacturers run into trouble. A mismatch between robot controller firmware and power source gateway firmware is one of the most common causes of commissioning delays. EVS Robot
The DeviceNet Advantage
DeviceNet is a mature, well-documented industrial standard. Lincoln Power Wave sources connect via Lincoln ArcLink - which is Lincoln's proprietary DeviceNet-based protocol - or standard DeviceNet. Fronius also supports DeviceNet on a number of its power source models, alongside its newer EtherCAT interface. EVS TECH CO., LTD
For manufacturers who want flexibility - the ability to connect a robot to different welding brands without rebuilding the communication architecture from scratch - standard DeviceNet compatibility is a significant practical advantage.
What Baykal Serial Offers
The Baykal Serial robotic welding machine from Fulzh Robot is built around standard DeviceNet connectivity. This means it can interface directly with Fronius, Lincoln Electric, EWM, OTC, and Panasonic welding power sources, as well as leading Chinese brands - without requiring proprietary adapters or custom protocol mapping for each combination.
Fulzh is currently the only Chinese manufacturer offering standard DeviceNet connection across this range of welding brands. For facilities already running Fronius or Lincoln equipment, this translates directly into a simpler integration process and a shorter path to production.
Before You Commit
A few practical points worth confirming before any integration project begins:
Verify the exact model and firmware version of your existing power source. Even within a single brand, interface availability can vary by product line and production year.
Factor integration labor into your budget. Multi-vendor cells typically require 15–25% more integration labor compared to single-vendor turnkey systems. A robot with strong out-of-the-box protocol support reduces that gap considerably. EVS Robot
Work with a supplier who can confirm compatibility in writing before purchase - not after commissioning begins.
The Bottom Line
Keeping your existing Fronius or Lincoln welder and adding robotic automation is a realistic path for most production environments. The critical factor is choosing a robot system whose communication architecture is built for multi-brand compatibility from the start, not retrofitted after the fact.
If you're evaluating options for your facility, contact us with your current power source model and production requirements - we'll confirm compatibility and walk you through the integration scope.