Difference between revisions of "MC-Basic:axis.TIMEOFSHORTMOTIONS"

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Revision as of 08:48, 22 May 2014

Defines the lower threshold below which TACCMIN and TDECMIN no longer affect motion. If the actual values of acceleration (or deceleration) time is below this limit, the entire excitation-limiting algorithm (TACCMIN and TDECMIN) is switched off.

CAUTION.svgCAUTION
The value of TSHORT is compared to acceleration/deceleration time only, and not to the entire duration of movement. Therefore, long movements with a long cruise-velocity phase and short acceleration/deceleration times could trigger the switch-off of the excitation-limiting algorithm. For best results, use small values (1 to 4 ms).


NOTE-Info.svgNOTE
Setting one of TACCMIN, TDECMIN or TSHORT to 0, completely disables the entire timing feature (excitation-limiting algorithm)

Short form

<axis>.TSHORT

Syntax

<axis>.TSHORT=<numeric expression>

Availability

Since Version 4.4.x

Type

Long

Range

0 to maxlong

Units

milliseconds (ms)

Default

0 – Not active

Scope

Task, Terminal

Limitations

  • Modal/Nodal
  • Read/Write

Examples

A1.timeaccmin = 500

A1.timedecmin = 1000

A1.timeofshortmotions = 200

See Also