Chapter 1 Description - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

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DESCRIPTION
The positioning module is an intelligent function module for high speed, high precision positioning with servo motors or
stepping motors via drive units.
Positioning control is easy
The positioning module controls the position and speed using the positioning data set using GX Works3. 600 positioning data
max. can be set per axis.
Multiple positioning start methods
The positioning module has normal start in addition to high-speed start and multiple axes simultaneous start.
Positioning controls can be started quickly by analyzing in advance the data executed immediately after the current operation
to prevent the analysis time affecting the start. Multiple axes simultaneous start can start the axis to be started and its partner
axis simultaneously using the same timing. Further, block start that operates sequentially according to multiple positioning
start data groups is also possible.
Abundant positioning control functions
The positioning module includes positioning control functions such as OPR control, positioning control, and manual control,
etc., and can also use sub functions such as limits and additional functions in counterpoints to these controls.
■OPR control
Near point dog, stopper, count, and data set are available as OPR control methods for "Machine OPR".
■Major positioning control
The major positioning control methods are position control, speed control, position-speed switching control, and position-
speed switching control, etc. Position and speed controls, etc., can be set for each axis using the timing chosen by the
operator, and can also implement interpolation control using multiple axes.
■Advanced positioning control
Multiple positioning data can be positioned continuously using a single positioning start. Further, multiple positioning data can
comprise one block, and continuous multiple block positioning is also possible.
■Manual control
Manual operations are classified as JOG operations, inching operations, and manual pulse generator operations.
■Sub function
Sub functions compensate or limit the control, or add functions to the control during positioning. More appropriate and highly
accurate control can be performed by using these sub functions.
Programming is easy
Using positioning module special commands such as absolute OPR commands, positioning start commands, and teaching
commands, etc., enables programs to be simplified. Further, using a function block (FB) enables reduced programming/
debugging man hours and improved program readability.
High maintainability
The positioning module can be maintained easily as described below.
• The history monitor functions, which enable the start history, error history, and warnings history to be monitored during
positioning operations, enables the positioning module operations status to be checked.
• Checking the parameters and monitoring the control status using GX Works3 for monitoring and testing makes debugging
more efficient.
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