MagnaTran 7.1 User’s Manual
Troubleshooting
MN-003-1600-00
Theta Motion Related Issues
Brooks Automation
Revision 2.2
10-11
Theta Motion Related
Issues
Armset has jerky
motion, or vibrates
during motion
Verify that the application
number of the robot is correct
Was Issue Resolved?
Armset overshoots a
taught position
Armset sways from
side-to-side during
motion
Look for, and adjust or
remove, any physical
obstruction that may interfere
with the robot's movement
Was Issue Resolved?
Verify if the motion is
repeatable
Was Issue Resolved?
Verify that the system
alignment was taught
properly
Verify that the Encoder
andSync Phase values are
consistant with the robot QR
Was Issue Resolved?
Verify that the armset
mounting bolts are torqued to
75-88 in-lbs.
Was Issue Resolved?
Verify that armset was
installed properly
Was Issue Resolved?
Verify that the wrist band
tension is adjusted properly
Was Issue Resolved?
Was Issue Resolved?
DONE
CALL BROOKS
TECHNICAL
SUPPORT
DONE
Inspect the wrist bearings for
excessive wear or rough motion
Inspect the elbow bearings for
excessive wear or rough motion
Was Issue Resolved?
Was Issue Resolved?
Verify that the wave washer
between the T2 arm adapter and
the bearing installed between
the T1 and T2 shafts is present
Was Issue Resolved?
The Theta Driver PCB has failed
Was Issue Resolved?
Armset oscillates
when halted
Verify that the application
number of the robot is correct
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Figure 10-4: Theta Motion Troubleshooting