One of the most valuable features of the OTC Welbee series welding power source is Synergic Mode.

In synergic mode, you set amperage or wire feed speed and the machine automatically adjusts Voltage to maintain arc performance.

Instead of manually balancing voltage and amperage, the system follows a programmed relationship between the two (or synergic curve). Setup becomes faster. Arc stability improves. Results become more consistent.

What is Synergic Welding?

In traditional GMAW (MIG welding), the operator adjusts:

• Wire feed speed (amperage)
• Voltage

Both must be tuned individually.

In synergic mode, amperage and voltage are symbiotically linked. As you increase or decrease wire feed speed, the machine automatically adjusts voltage to match.

Think of it like cruise control:

You set the speed. The machine manages the engine.

How OTC Welbee Synergic Mode works

Setup starts by selecting:

1. Material
2. Wire type and diameter
3. Shielding gas

Based on those inputs, the Welbee loads a pre-programmed synergic curve designed for those exact conditions.

When you begin welding, the machine defaults to a Synergic Voltage Adjustment value of 0.

That “0” represents a baseline voltage proven to work under ideal conditions.

...But real-world welding isn’t ideal.

• Material cleanliness
• Gas quality
• Wire quality
• Magnetism
• Ambient temperature

That’s where synergic voltage adjustment comes in.

Understanding Synergic Voltage Adjustment (Voltage trim)

In synergic mode, you primarily control:

• Amperage / wire feed speed
• Synergic Voltage Adjustment (Voltage Trim)

Example:

You strike an arc and notice:

• The arc is too wide
• Undercut forms at the weld toes

Lower the voltage trim to tighten the arc and focus the puddle.

If -10 produces the best weld profile, that becomes your working trim value.

From there, you can raise or lower amperage and the machine will automatically adjust voltage along the synergic curve to maintain similar arc characteristics.

You change output.

The machine maintains balance.

What the software is doing in the background

While welding, OTC’s software continuously samples arc data and makes micro-adjustments.

This helps reduce:

• Dead shorts (spatter)
• Arc wander (especially in magnetized parts)
• Inconsistent transfer

The engineers have already mapped the relationship between amperage and voltage. You just fine-tune it. 

Why use Synergic Mode?

Synergic mode is ideal for:

• Faster setup
• Repeat production welding
• Less experienced operators
• Reduced spatter
• Improved arc stability
• More consistent weld profiles across shifts

It simplifies GMAW parameter selection without removing control.

Final thought

With OTC Welbee Synergic Mode:

Set your amperage.

Trim your voltage.

Let the curve do the work.

Master the trim – and you control the arc.