Manual

3-60 Detailed Descriptions of ACL Commands
If either <x res> or <y res> is less than 4.0000 the maximum speed is proportionally
limited such that motion does not exceed a certain number of full steps per second. The
approximate limits are as follows:
Single vectors: approx. 7400 full steps/sec
Single arcs: approx. 2200 full steps/sec
Continuous Path vectors and arcs: approx. 2100 full steps/sec
Other speed limits may apply; see the SR command.
The microstep factors default to 8.0000 in both axes if <x res> and <y res> are omitted,
and at power up, but not at IN. In a given RE command <x res> and <y res> must be either
both specified or both omitted. The default value 8.0000 itself can be changed via the PE
command, so that the System "wakes up" with the desired microstep factors at power up.
The RE command does not change the calibration factors established by the CF command or
the linearity correction established by the CR command. In other words, the number of
microsteps per Calibrated Unit remains unchanged. But, all other things being the same, the
RE command does affect how much physical travel occurs for a given motion command.
When you change the microstep factors via RE, you will probably also want to change the
acceleration, the step rate, and some of the personality parameters affecting Arrow button
and FH motion. See the AC, SR, and PE commands and Chapter 7. In general, if you
double the microstep factors you will get similar behavior if you halve personality
parameters 2, 3, 8, 9, 12, and 13, and double personality parameters 6, 7, 10, 11, 14, 15, 17,
18, 23, 24, 25, 26, 32, and 33. However, your application determines the best values for
these parameters.