Emerson Epsilon EP Drive 400518-01 Manual de instalación descargar pdf (Pagina 161)

149

Parameter Descriptions

PLS Off Point

PLS.#.OffPosn

PLS.#.Status will be active when the selected source position is between the PLS.#.OnPosn and the PLS.#.OffPosn. The

terms On and Off assume you are traveling in a positive direction. Assume that the PLS.#.Direction is set to "Both". When

traveling in the positive direction and the position feedback reaches the OnPosn, the PLS.#.Status will activate. As the motor

continues in the same direction, the PLS.#.Status will deactivate when feedback position reaches or exceeds the OffPosn. If

motor travel changes to the negative direction, the PLS.#.Status will activate when position feedback reaches the OffPosn,

and will deactivate when it continues past the OnPosn. The important thing to remember is that the PLS.#.Status will be

active if between the PLS On and Off points.

If using negative values for the OnPosn and OffPosn, the most negative value should go in the OnPosn parameter, and the

least negative value should go in the OffPosn.

If the PLS has a rollover point, and the OnPosn is greater than the OffPosn, the PLS will be active whenever the axis is not

between the On and Off positions, and inactive whenever the axis is between the two positions. However, the PLS.#.Status

will not turn on until it reaches the OnPosn the first time.

PLS On Point

PLS.#.OnPosn

PLS.#.Status will be active when the selected source position is between the PLS.#.OnPosn and the PLS.#.OffPosn. The

terms On and Off assume the motor is traveling in a positive direction. Assume that the PLS.#.Direction is set to "Both".

When traveling in the positive direction and the position feedback reaches the OnPosn, the PLS.#.Status will activate. As the

motor continues in the same direction, the PLS.#.Status will deactivate when feedback position reaches or exceeds the

OffPosn. If motor travel changes to the negative direction, the PLS.#.Status will activate when position feedback reaches the

OffPosn, and will deactivate when it continues past the OnPosn. The important thing to remember is that the PLS.#.Status

will be active if between the PLS On and Off points.

If using negative values for your OnPosn and OffPosn, the most negative value should go in the OnPosn parameter, and the

least negative value should go in the OffPosn.

If the PLS has a rollover point, and the OnPosn is greater than the OffPosn, the PLS will be active whenever the axis is not

between the On and Off positions, and inactive whenever the axis is between the two positions. However, the PLS.#.Status

will not turn on until it reaches the OnPosn the first time.

PLS Enable

PLS.#.PLSEnable

This destination is used to enable an individual PLS. A PLS can be enabled though the Assignments view in PowerTools FM3

or from a program. If enabled, the PLS will begin to function as soon as the drive has been homed or a DefineHome

destination has been activated. Master Posn Valid must be active (Master Define Home is activated) if using a master signal

for PLS source.

PLS Rollover Enable

PLS.#.RotaryRolloverEnable

This parameter is used to enable the RotaryRolloverPosn for the individual PLS.

PLS Rollover Position

PLS.#.RotaryRolloverPosn

This parameter is the absolute position of the first repeat position for this PLS. When enabled it causes the PLS to repeat every

time this distance is passed. The repeating range begins at an absolute position of zero and ends at the RotaryRolloverPosn.

For example in a rotary application a PLS could be setup with an OnPosn of 90 degrees and an OffPosn of 100 degrees. If

the RotaryRolloverPosition is set to 360 degrees the PLS would come on at 90, go off at 100, go on at 450 (360+90), go off

at 460 (360+100), go on at 810 (2*360+90), go off at 820 (2*360+100), and continue repeating every 360 degrees forever.

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Emerson Epsilon EP Drive 400518-01 Manual de instalación Pagina 161

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Emerson Epsilon EP Drive 400518-01 Manual de instalación Pagina 161

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