8 Troubleshooting
H-840 Hexapod Microrobot
MS201E
Version: 2.5.1
41
Problem
Possible causes
Solution
Unexpected
hexapod behavior.
Defective cable
Bent pin
Connector or
soldered joints
loosened
Check the data transmission and power
supply cables.
Replace the cables by cables of the same
type and test the function of the hexapod.
Contact our customer service department
(p. 45).
The hexapod does
not achieve the
specified
repeatability.
Warped base plate
Cover plate is warped
Mount the hexapod onto a flat surface (p.
25).
Only mount loads with a flat footprint
surface.
The recommended flatness of the
surface is 300 µm.
Poor lubrication
because of small
movements over a
long period of time.
Do a maintenance run over the entire
travel range (p. 33).
External disturbances
Make sure that no vibrations are not
transmitted to the system.
Make sure that forces, e.g., also through
dragged cables, do not affect the
movement of the cover plate.
Make sure that the system is in a thermal
equilibrium.
The trajectory
accuracy is poor.
Unsuitable control
parameters for the
application
The system behavior
has changed due to
an increasing ease of
operation.
Carry out a tuning of the parameters.
Contact our customer service department
(p. 45).
The hexapod does
not move.
Foreign body has
entered the drive
spindle
Faulty motor
Sensor defective
Blocked or broken
joint
Carry out a strut test (refer to the user
manual for the controller).
The strut test should be carried out in the
reference position, unless the malfunction
occurs with maximum or minimum
displacement of the platform in Z.
Contact our customer service department
(p. 45).
8
Troubleshooting
