Commander GP User Guide
Issue code: gpxu2
3-38 Setting Up the Drive
3.9 Macro 6
Axis-limit control
Features
Specific features
Axis-limit control is used for applications which
require the process to be automatically stopped
when a position limit has been reached.
Speed can be controlled in both directions in either
of two ways, as follows:
• Bipolar frequency reference signal and use
of a RUN FORWARD contact (bipolar
control)
• Unipolar frequency reference signal and use
of RUN FORWARD and RUN REVERSE
contacts (unipolar control)
Selection can be made between the following
frequency reference inputs:
Local unipolar input (0 ~ 10V)
Remote differential input which can be used
as follows:
• Single-ended unipolar input (0 ~ 10V)
• Single-ended bipolar input (±10V)
• Bipolar or unipolar differential input (±10V
on each line)
Travel in each direction is halted by use of a LIMIT
digital input. By default, these inputs require
normally-open contacts but can be configured for
normally-closed contacts.
To run the Drive, the appropriate RUN contact must
be closed. When the related LIMIT contact changes
state to mark the axis limit, the Drive decelerates to
zero speed at a rate set by the user. In order to
change direction, it is necessary to perform either of
the following, as appropriate:
• Bipolar control: Reverse the polarity of the
frequency reference
• Unipolar control: Open the RUN switch, and
then close the RUN switch for the opposite
direction
The Drive is operated under frequency control.
Selection can be made to apply torque to the motor
at zero speed, or to allow the motor to rotate
freely.
Standard features
• Macro 6 operates in Terminal mode only
• Adjustment of minimum and maximum
frequencies
• Adjustment of acceleration and
deceleration ramps
• Selection of stopping modes
• Motor thermistor input
• SPEED and TORQUE analog outputs
• AT SPEED digital output
• External tripdigital input
• Drive RESET digital input
