Aerotech UNIDEX 511 - Stepper Motors and Related Problems

Troubleshooting U511 User’s Manual
11-2 Aerotech, Inc. Version 1.1
Motors must be mechanically secured before applying power.
Motor Temperatures may exceed 50°C.
Danger, risk of electric shock.
11.1. Stepper Motors and Related Problems
Some common problems that relate to the use of stepper motors are listed and diagnosed
in Table 11-1.
Table 11-1. Troubleshooting for Stepper Motors (and Related) Problems
Problem Possible Causes / Solutions See Also ...
The stepper motor
overheats...
The “Stepper high current %” parameter (x46) is set
too high.
The “Stepper low current %” parameter (x47) is set too
high.
4.8
The stepper motor
drops out...
The “Ramp time” parameter is set too low.
The “Max accel/decel” parameter is set too low.
Load on motor is too great.
4.5, 4.11
The motor rotates in
the wrong direction
...
The motor phasing is incorrect. 4.8
The motor has no
torque ...
The appropriate axis is not enabled.
The motor wiring is faulty.
The amplifier fuse is blown.
3.0
Motor or Amp
Documents
The amplifier LED is
on, but the motor
will not move (even
though it did
previously)...
Check for a blown amplifier fuse.
DANGER
DANGER
DANGER
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com