Product Outline; Positioning Control; Features Of Qd75 - Mitsubishi Electric QD75P1N User Manual

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PRODUCT OUTLINE

1.1 Positioning control

1.1.1 Features of QD75

The features of the QD75 are shown below.
(1) Availability of one, two, and four axis modules
(a) The pulse output types of the available modules are either the open
collector output system or the differential driver output system. A module
can be selected from the following depending on the drive unit type and the
number of axes. (Refer to Section 2.2.)
• Open collector output system:
QD75P1N/QD75P2N/QD75P4N (QD75P1/QD75P2/QD75P4)
• Differential driver output system:
QD75D1N/QD75D2N/QD75D4N (QD75D1/QD75D2/QD75D4)
(b) For connecting any of the QD75 modules to the base unit, a single slot and
32 dedicated I/O channels are required.
Within the limit imposed by the maximum number of inputs and outputs
supported by the CPU module, up to 64 modules can be used. (Refer to
Section 3.1.)
(2) Wide variety of positioning control functions
(a) A wide variety of positioning control functions essential to any positioning
system are supported: positioning to an arbitrary position, fixed-feed
control, equal-speed control, and so on. (Refer to Section 5.3 and 9.2.)
1) Up to 600 positioning data items, including such information as
positioning addresses, control systems, and operation patterns, can be
prepared for each axis.
Using the prepared positioning data, the positioning control is
performed independently for each axis. (In addition, such controls as
interpolation involving two to four axes and simultaneous startup of
multiple axes are possible.)
2) Independent control of each axis can be achieved in linear control
mode (executable simultaneously over four axes).
Such control can either be the independent positioning control using a
single positioning data or the continuous positioning control enabled by
the continuous processing of multiple positioning data.
3) Coordinated control over multiple axes can take the form of either the
linear interpolation through the speed or position control of two to four
axes or the circular interpolation involving two axes.
Such control can either be the independent positioning control using a
single positioning data or the continuous positioning control enabled by
the continuous processing of multiple positioning data.
(b) For each positioning data, the user can specify any of the following control
systems: position control, speed control, speed-position switching control,
position-speed switching control, and so on. (Refer to Section 5.3 and
9.2.)
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