Manual Pulse Generator

mpg

A Manual Pulse Generator (MPG) is a device commonly used in computer numerically controlled (CNC) machinery or other positioning equipment. It typically features a rotating knob that generates electrical pulses, which are sent to a controller. The controller uses these pulses to move the equipment a specific distance for each pulse.

The CNC handheld controller MPG pendant offers selectable options of x1, x10, and x100. It is equipped with a 4-axis (5-axis) and scale selector, as well as emergency stop.

For instance, the handwheel of a standard CNC control moves any of the machine’s slides by one minimum increment such as 1 micrometer or 0.0001 inches per pulse. Each movement is accompanied by a ratchet-like click or similar haptic feedback to confirm that a single increment has occurred. Selector switches manage the handwheel’s functionality: one switch allows the user to choose between the machine’s axes (X, Y, Z, etc.), while another adjusts the range of output, enabling each click of the wheel to correspond to a single increment, 10 times that increment, or 100 times that increment.

Manual Pulse Generator Wiring

Manual Pulse Generator pendant wiring

IMPORTANT: Some MPG is equipped with an enable button. The ENABLE button acts as a “deadman switch” and must be depressed for the MPG to operate.

Leave a Reply