U511 User’s Manual Getting Started
Version 1.1 Aerotech, Inc. 2-5
Feedback phasing may be verified by manually turning the motor. Clockwise/counter-
clockwise rotation should produce an increasing/decreasing display. If not, feedback
phasing is incorrect. The Diagnostics window will always display CW rotation as
increasing feedback.
Motor direction for rotary motors (clockwise or counter-clockwise), is always
referenced by “looking into” the shaft end of the motor. For linear motors, the
positive direction is defined as movement away from the motor forcer’s integral
wiring.
Make certain that the UNIDEX 511 is appropriately configured for the type of
motor being driven.
2.6.2. Limit Verification
Limit verification is extremely important in the startup of the UNIDEX 511 system.
Improperly configured limits can cause damage to system components and can pose
safety hazards to operators and others. Limit verification requires the operator to disable
each axis, manually engage each limit, and then check the state of that limit input using
the Diagnostics window. The Diagnostics window will display the state of limit inputs as
either an “H” (for “high”) or an “L” (for “low”). Depending on their polarity, the limits
should change from high to low or from low to high when activated. Normally closed
limit switches go from low to high when activated. Normally open limit switches go from
high to low when activated. If no change is observed, the limit system is faulty. Refer to
Chapter 4 of this manual for more information about limit parameters.
To prevent the possibility of personal injury or possible damage to the equipment, do
not enable the axes until the limits are working properly.
IMPORTANT
WARNING
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