Technical information

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Software Setup and Operation
2. If the specified position is outside the rotary range, the drive will travel the distance and
direction calculated by distance.
Example 3: If the starting position is at Ø° and 360° is the specified position, an Absolute
Index would travel 360° in the + direction. At the completion of this index the motor
position would be Ø°.
Example 4: If the starting position is at Ø° and 361° is the specified position, an Absolute
Index would travel 361 in the + direction. At the completion of this index the motor
position would be 1°.
Example 5: If the starting position is at 90° and -3600° is the specified position, an
Absolute Index would travel 3690° in the - direction. At the completion of this index the
motor position would be Ø°.
Index Parameters
The following is a list of the parameters found in various index screens. Items that do not
appear on every screen for every index type will be noted.
Use Index Direction Input
This parameter only appears when Index Direction Input function #41 is assigned.
When you enter “Yes” for this parameter, the index will proceed in the normal direction
commanded by Index Distance. If the line assigned to Index Direction Input is active when
this index is initiated, the index will run the commanded distance but in the direction opposite
to the direction commanded in the index setup.
Distance/Position
This parameter in an Incremental Index specifies the incremental distance and direction that
the motor is to move from its present position. If the Actuator Polarity is set to + in the Drive
Parameters Menu, the CW rotation of the motor will cause the distance from zero to increase
to a positive value. If the Actuator Polarity is set to -, the CCW rotation will cause the distance
to increase in a positive value.
When used in an Absolute Index, this parameter is called “Position” and specifies the position
(referenced from machine zero position) to move to. In an Absolute Index, the FX drive will
be able to move to the commanded position, regardless of where it lies with respect to the
motor’s starting position.
Velocity
This parameter specifies the maximum velocity the FX Drive will accelerate to during the
index. If the acceleration time, deceleration time and distance are very short, the motor may
not reach the maximum velocity; however, the commanded position will be achieved.