Rockwell-automation 1784-PM16SE SoftLogix Motion Card Setup and Config Manual de usuario descargar pdf (Pagina 306)

Publication 1784-UM003A-EN-P – June 2003

298 Motion Object Attributes

In most cases, Home Position is set to zero, although any value, within the

Maximum Positive and Negative Travel limits of the axis (if enabled), may also

be used. (A description of the Maximum Positive and Negative Travel

configuration attributes may be found in the Servo and Drive Axis Object

specifications). For a rotary axis, the Home Position is constrained to be a

positive number less than the Position Unwind value divided by the

Conversion Constant.

When configured for absolute Homing Mode, the Home Position value is

applied directly to the absolute feedback device to establish an absolute

position reference for the system.

Home Offset

When applied to an active or passive Homing Mode, using a non-immediate

Home Sequence, the Home Offset is the desired position offset of the axis

Home Position from the position at which the home event occurred. The

Home Offset is applied at the end of the specified homing sequence before

the axis moves to the Home Position. In most cases, Home Offset is set to

zero. .

After an active bi-directional homing sequence has completed, the axis is left at

the specified Home Position. If the Home Offset is non-zero, the axis will

then be offset from the marker or home switch event point by the Home

Offset value. If the Home Offset is zero, the axis will sit right “on top of” the

marker or home switch point.

Home Speed

The Home Speed attribute controls the speed of the jog profile used in the

first leg of an active homing sequence as described in the above discussion of

the Home Sequence Type attribute.

Home Return Speed

The Home Return Speed attribute controls the speed of the jog profile used

after the first leg of an active bi-directional homing sequence as described in

the above discussion of the Home Sequence Type attribute. .

GSV/SSV Access Attribute Name Data Type Values

SSV/GSV Home Offset REAL Position Units

GSV/SSV Access Attribute Name Data Type Values

SSV/GSV Home Speed REAL Position Units / Sec

GSV/SSV Access Attribute Name Data Type Values

SSV/GSV Home Return Speed REAL Position Units / Sec

1 2 ... 301 302 303 304 305 306 307 308 309 310 311 ... 450 451

Sin comentarios

Rockwell-automation 1784-PM16SE SoftLogix Motion Card Setup and Config Manual de usuario Pagina 306