Overview

The G200 command defines the operational parameters for laser control, including minimum power level and power ramping behavior.

This command can be placed inside a G-code program to configure laser operation parameters dynamically during a job.

Activating the Laser Tool

To access the Laser settings screen, select Tool 111.

T111 M6

Include the above line in your G-code file to ensure that the controller is set to the Laser tool before executing laser-related commands.

Syntax & Parameters

• G200 uses the values to populate the Plasma parameters tab
• Q Value – Sets the minimum laser power output level (as a percentage of full power) and enables Power Ramping.

Description

The G200 command controls how the Laser tool behaves.

• By default, G200 is off.

• Issuing G200 with a Q parameter enables laser mode and activates Power Ramping.

• Issuing G200 without parameters turns the feature off.

• G200 works only with M03 (clockwise spindle/laser on) and has no effect with M04 (counterclockwise).

Q Parameter – Minimum Power & Power Ramping

When a Q value is specified, it enables two functions:

1. Minimum Power Level

Defines the minimum power output used when the laser is on (M03).
This feature is useful for processes such as laser welding, where a consistent baseline power prevents incomplete welds or weak burns.

For example:

G200 Q5

Sets the minimum power level to 5% with power ramping enabled.
If no minimum power is required, use:

G200 Q0

2. Power Ramping

Laser cutting and engraving power depend on both power level and movement speed.
If the laser slows down (e.g., during acceleration, deceleration, or cornering), more energy is deposited, which can cause darker burns or overcutting.

Power Ramping automatically scales the laser output based on the axis speed to maintain consistent engraving or cutting depth.

It ensures:

• Smooth power increase during acceleration.

• Stable power at constant feed rate.

• Gradual reduction during deceleration.

• Compensation for Feed Rate Override or corner slowdowns.

Example Program

N10 G200 Q0
N20 X100 F1000 S800

• Minimum laser power set to 0%

• Requested maximum power (S value) = 80%

• The system ramps power proportionally with speed

Laser Power Ramp Example

As the axis accelerates from 0 to 1000 mm/min, laser output increases proportionally to the movement speed.