Emerson Epsilon EP Drive 400518-01 Manual de instalación descargar pdf (Pagina 102)

Epsilon EP-P Drive and FM-3/4 Module Reference Manual

Figure 83: Timed Index Profiles

Enable Index PLS

This check box enables (when selected) or disables the Index PLS function.

An Index PLS is similar to a global PLS (explained in the PLS View section), but is incremental in nature. The Index PLS

has On and Off points just like a global PLS, but the On and Off points are specified as an incremental distance from the start

of the index, instead of absolute positions. Each index has its own On and Off points, and the Index.#.PLSStatus is only

updated when Index# is run. The direction of the PLS does not matter, the Index.#.PLSStatus will activate and deactivate the

same incremental distance from the start of the index.

PLS On Point

This parameter is an incremental distance from the start position of the index, at which the PLS.#.Status will become active.

It is an unsigned value in user units. The On Point must always be less than the Off Point.

PLS Off Point

This parameter is an incremental distance from the start position of the index, at which the PLS.#.Status will deactivate. It is

an unsigned value in user units. The Off Point must always be greater than the On Point. If the Off Point is larger than the

Distance parameter in an Incremental type of index, the PLS Status will never deactivate until the index is run again.

Example 1:

Index 0 is an Incremental index with a distance of 5 Revs. The PLS On Point is set to 1 Rev, and the PLS Off Point is set to

4 Revs. A home is completed, and Position Feedback is equal to 0.0 Revs.

If Index 0 is run, the Index.0.PLSStatus will activate when the feedback position reaches 1 Rev and remain active until

feedback position reaches 4 Revs, and deactivate. At the end of Index 0, position feedback is equal to 5 Revs. If we initiate

Index 0 again, Index.0.PLSStatus will activate 1 Rev into the index, or at 6 Revs. It will remain active until position feedback

reaches 9 Revs, and deactivate. This index could be run over and over again, and Index.0.PLSStatus will activate 1 Rev from

the starting position and deactivate 4 Revs from the starting position every time.

Example 2:

Index 1 is an Incremental index with a distance of -10 revs. The PLS On Point is set to 4 Revs, and the PLS Off Point is set

to 6 Revs. A home is completed, and Position Feedback is equal to 0.0 Revs.

If Index 1 is run, the Index.1.PLSStatus will activate when the position feedback reaches -4 Revs (or 4 Revs from the start of

the index). Index.1.PLSStatus will then deactivate when position feedback reaches -6 Revs (or 6 Revs from the start of the

index). If Index 1 is run again, Index.1.PLSStatus will activate and deactivate at -14 Revs and -16 Revs respectively.

Index PLS’s can be used on any type of an index.

If an index is so short (possible in the case of an absolute index) that it reaches the On Point, or incremental distance, into the

index, but never reaches the Off Point, the Index.#.PLSStatus will remain active until the index is run again.

Similarly, if the index is so short that it never reaches the On Point, the Index.#.PLSStatus will never activate.

Triangle

Move

Trapezoidal

Move

Max Accel

Max Velocity

Max Decel

Index.ProfileLimited activates

for this profile

Time

1 2 ... 97 98 99 100 101 102 103 104 105 106 107 ... 239 240

Emerson Epsilon EP Drive 400518-01 Manual de instalación Pagina 102

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Emerson Epsilon EP Drive 400518-01 Manual de instalación Pagina 102

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