---
title: Miller Auto Deltaweld™
description: "This page describes how to integrate and set up communication between the Miller Auto Deltaweld™ power source and SmoothTool X. ## Hardware Configuration SmoothTool X is compatible with the Miller Auto Deltaweld™. To set up communication between the software and…"
url: "https://hub.smooth-robotics.com/docs/power-sources-miller-auto-deltaweld/"
updated: "2026-09-23"
category: Power Sources
---

# Miller Auto Deltaweld™

This page describes how to integrate and set up communication between the Miller Auto Deltaweld™ power source and SmoothTool X.

## Hardware Configuration

SmoothTool X is compatible with the Miller Auto Deltaweld™. To set up communication between the software and a power source, the following items are required:

- An Auto Deltaweld™ system that supports Modbus TCP.
- Ethernet cable (part no. 1407362).

### Power Source Interface Configuration

Ensure that the power source is set to **Modbus TCP** on the front panel and that the **legacy EIP object model is disabled**.

Verify that the IP address of the back panel is reachable by the robot — both must be on the same subnet. For example, if the robot has IP address **192.168.100.2**, the power source should be in the same subnet, such as **192.168.100.4**.

### IP Address

Select a valid IP address for the interface using the power source's network settings. The IP address must be on the same subnet as the robot.

### Hardware Installation

Connect the power source to the robot with the Ethernet cable using the connector on the back side of the machine, as pictured below.

![Back panel of the Miller Auto Deltaweld showing the Ethernet port used to connect to the robot](https://hub.smooth-robotics.com/wp-content/uploads/2026/09/manual-power-sources-miller-backside.webp)

## Software Configuration

Once the hardware is configured, add and connect the Miller Auto Deltaweld™ in SmoothTool X.

### Add the Auto Deltaweld™

Tap **SmoothTool X Settings** from the Application view. In the sidebar, under **Components**, tap **Power Sources**, then tap **Add new power source**.

 ![Power Sources page with the Add new power source button](https://hub.smooth-robotics.com/wp-content/uploads/2026/09/manual-power-sources-miller-power-sources-tab.webp)

In the **Add power source** dialog, select the **Miller** tile and choose the **Miller Auto Deltaweld** model, then tap **Add power source**.

 ![Add power source dialog — Miller Auto Deltaweld selected](https://hub.smooth-robotics.com/wp-content/uploads/2026/09/manual-power-sources-miller-add-power-source.webp)

### Configure the Auto Deltaweld™

Fill in the configuration fields:

| Field | Description |
| --- | --- |
| Custom name | A name to identify this power source. |
| Power source IP address | The IP address of the power source. The robot uses this address to communicate with it. Ensure it is set correctly; otherwise the robot cannot connect. |
| Machine type | Select the machine that matches your setup — **Auto Deltaweld 350** or **Auto Deltaweld 500**. |
| CE marking | Select **CE marking** for CE-certified machines, or **None CE marking** for non-CE machines. This selects the wire-feed-speed scaling sent to the machine — CE machines expect m/min, non-CE machines in/min — so a wrong choice here makes every wire feed speed wrong without reporting an error. |
| Configure parameters in the software | Controls whether program nodes override the power source parameters at runtime — see [Configure parameters in the software](#configure-parameters-in-the-software) below. |

Caution

Select the correct **Machine type** for your setup. If the wrong machine type is selected, activation and connection will not be possible.

When done, tap **Done** to save the power source.

 ![Miller Auto Deltaweld configuration page](https://hub.smooth-robotics.com/wp-content/uploads/2026/09/manual-power-sources-miller-configuration.webp)

#### Configure parameters in the software

The **Configure parameters in the software** toggle controls how welding parameters are applied:

- **Disabled** (default) — the power source keeps the parameters set on the machine; program nodes do not override them.
- **Enabled** — program nodes override the power source parameters at runtime, letting you set welding parameters per node from the weld node's Power source tab.

### Connect to the Auto Deltaweld™

Back on the **Power Sources** page, expand the new entry, tap **Selected** to make it the active power source, then tap **Connect**. When the connection is established, a connection status tag is shown on the entry.

 ![Configured Miller Auto Deltaweld power source entry](https://hub.smooth-robotics.com/wp-content/uploads/2026/09/manual-power-sources-miller-power-source-entry.webp)

## Programming with SmoothTool X and Miller Auto Deltaweld™

When **Configure parameters in the software** is enabled, you can adjust the welding parameters per node from the program tree.

Select a weld node (e.g. Weld Seam) in the program tree and open its **Power source** tab. The parameters apply when the program reaches that node.

The power source offers two methods for setting the weld parameters: **Job number mode** and **Synergic mode**.

 ![Power Source Parameters node for Miller Auto Deltaweld](https://hub.smooth-robotics.com/wp-content/uploads/2026/09/manual-power-sources-miller-weld-parameters.webp)

### Job number mode

Select **Job number mode** to type in the job number saved on the power source and set the parameters directly.

| Identifier | Description |
| --- | --- |
| Job number | The desired job saved on the Miller Auto Deltaweld™. |
| Wire feed speed | The desired wire feed speed. |
| Voltage | The desired voltage. Shown for the constant-voltage processes — **CV MIG** and **HD MIG**. |
| Arc control | The desired arc control setting. |
| Arc length | The desired arc length. Shown for every other process — **Accu-Pulse**, **RMD MIG** and **Versa-Pulse**. |
| Sequence settings | Opens the arc start and arc end sequence panel — see [Sequence settings](#sequence-settings) below. |
| Transfer parameters | Sends the current parameters to the power source. Available once connected. |

**Voltage** and **Arc length** are alternatives: the process decides which of the two the node shows, so you never set both.

### Synergic mode

Select **Synergic mode** to find the right job number through a guided wizard. Tap **Guided setup** and follow the steps: **Process → Material → Gas → Wire diameter**. You can also enter a known **Synergic line number** directly. Once a line is selected, the button collapses to an edit icon you can tap to change the selection.

Once a synergic line is selected, the general parameters become available (the same as in Job number mode), including **Sequence settings**. **Voltage** is shown for CV MIG and HD MIG, and **Arc length** for the other processes.

### Sequence settings

**Sequence settings** opens a panel with an **Arc start** and an **Arc end** tab, covering the stages the power source runs around the weld:

| Tab | Stages |
| --- | --- |
| Arc start | Preflow, Run-in, Start, Profile pulse |
| Arc end | Crater fill, Burnback, Retract, Postflow |

Each stage has a **Mode**. Most offer **Off**, **Auto**, **Custom** and **On**; a stage's values become editable only once its mode is **Custom** (or **On**, for the on/off stages), and the panel says so when they are hidden. **Burnback** has no mode — its value is always editable — and **Crater fill** has a mode but no values of its own.

| Stage | Values |
| --- | --- |
| Preflow | Flow time |
| Run-in | WFS percent |
| Start | WFS, Voltage, Dwell time, Ramp time |
| Profile pulse | Pulse frequency, Voltage, Arc length, WFS, WFS percent |
| Crater fill | — |
| Burnback | Burnback time |
| Retract | Retract distance |
| Postflow | Flow time |

### Manual power source controls

The manual controls live in the **Power source** popover, opened from the button in the operator screen toolbar.

 ![Power source popover showing the manual wire-control and test functions](https://hub.smooth-robotics.com/wp-content/uploads/2026/09/manual-power-sources-miller-manual-controls.webp)

When connected to the Auto Deltaweld™, the following manual controls are available:

| Control | Description |
| --- | --- |
| Forward | Feeds the welding wire forward. |
| Backward | Retracts the welding wire. |
| Gas | Opens the gas valve for the duration of the press. |

Warning

Connected to a power source that provides the option to control the wire. Do not use these functions without ensuring no harm can come to people or material. Make sure the area around the welding torch is clear before use.

#### Simulation

The **Simulation** toggle at the top of the popover runs the program as a dry run: the robot executes the full program and motion path, but the power source does not weld (no arc, wire feed, or gas). Use it to test a program safely, then turn it off to weld for real.