Homing

Home Offset

Offsets are a way to change the reported position of a homing operation.

Axis Home Offset

The (Mach 4) axis home offset is the position that Mach 4 will display when the motor is at the home position.

Motor Home Offset

The motor home offset is the amount (in position units) added to the physical home position that the motor position will report zero.

Home Condition

This is where the homing condition is met: current position, index pulse, home switch active, etc.

Scenarios

No Home Offsets

When no offsets are employed, the physical location where the homing condition is active is where the Mach 4 will report a motor's position as zero.

After homing an axis, the motor will be at the physical location of the homing condition and Mach will report the current position as 0.0000.

Motor Home Offset

When a motor home offset is configured, the reported motor position of zero is the physical location of the homing condition with the motor home offset added to it.

If move to zero is configured, the motor will move to that position at the end of the homing routine.

After homing an axis with a motor offset of 0.25, the motor will be 0.25 units in the positive direction past the physical location of the homing condition and Mach will report the current position as 0.0000.