High End Systems Roadster Orbital Head System user manual MSpeed Motor Speed

CHAPTER 4

DMX Programming

MSpeed (Motor Speed)

The MSpeed parameter controls the time required for a motor to complete movement when changing from one position to another from the longest (DMX value = 0) to the shortest (DMX value = 65535). MSpeed provides a means for all motors to reach their target position at the same time, even though each motor may have different distances to travel. MSpeed movement is extremely smooth because the fixture controls movements independent of DMX refresh rates. MSpeed provides a balance between quick response and smooth motion with some lag.

MSpeed times vary from 0.15 seconds to 252.7 seconds. However, when MSpeed is applied to a parameter, the delay value (length of time allowed for the entire scene) needs to be longer than the MSpeed value to allow the motors to complete their movement before the end of the cue.

An MSpeed value that is longer than the delay value can be used to smoothly change directions or in creating circles or ballyhoos. It could also produce an undesirable result; for example, no light output during the scene. For a listing of exact MSpeed times, see MSpeed Conversion Table on page 37.

Note: The MSpeed option applies to Mirror Head movement speed. Mirror head speed can also be varied using XFADE time on most DMX consoles. If a DMX controller cannot perform a smooth 16-bit XFADE, an MSpeed between 95-99% may greatly improve smoothness.

32 Roadster Orbital Head System User Manual