Control Techniques FM-3, Reference Manual

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FM-3 Programming Module Reference Manual
Registration Parameters
The following parameters are only used if Registration is selected as the Index Type.
’Analog’ or ’Sensor’ Radio Buttons
Select one of these radio buttons to determine what signal will be used as your registration
trigger.
If ’Sensor’ is selected, a source must be assigned to the Index.#.SensorTrigger Typically a
proximity sensor is wired to a hardware input, and therefore a module or drive input source
is assigned to the Index.#.SensorTrigger, but any source can be used.
If ’Analog’ is selected, one of the analog signals must be selected in the analog list box.
Available selections are Analog In, Torque Command, or Torque Feedback. Then a
comparison operator must be selected from the operator list box. Available selections are >
(greater than) and < (less than). Last, an analog value must be entered for comparison.
Registration to Analog Input Value
If Analog In is selected, the value of the drive Analog Input is used as the registration signal.
When the value of the analog input reaches a value that satisfies the comparison operator, the
sensor trigger will activate. Units for the registration value will match the units configured on
the Analog Inputs screen when Analog In selected.
Registration Offset
The incremental distance the motor will travel after a valid registration sensor or analog limit
value has been detected. This is a signed parameter; so if an index is travelling in the negative
direction, the offset needs to be negative and continue in the same direction. If the registration
offset is zero or less than the decel distance shown on the calculations tab, the motor will
decelerate at the programmed rate and then back up to the specified offset distance from the
trigger position.
Enable Registration Window
This check box enables (if checked) the Registration Sensor Valid Window. When active,
only registration marks that occur inside the registration window are seen as valid.
Window Start
This parameter defines the start of the Registration Sensor Valid Window relative to start
position of this index. This is an unsigned value and is relative only to starting position of this
index. Index direction does not affect this parameter. The Registration Window Start position
(or distance) should be less than the Registration Window End position. If a registration
sensor is seen outside of this window (not between the WindowStart and WindowEnd
positions) then it will be ignored.
Window End
This parameter defines the end of the Registration Sensor Valid Window relative to start
position of this index. This is an unsigned value and is relative only to starting position of this
index. Index direction does not affect this parameter. The Registration Window End position