PI V-551.2D, Руководство пользователя

Страница: 47 / 71

8 Troubleshooting
V-551 Linear Stage MP160E Version: 1.1.1 43
Problem Possible causes Solution
Target position is
approached too
slowly or with
overshoot
 Servo control
parameters are not
optimally set
 Large changes to the
load or the alignment of
the V-551
 Velocity / acceleration
set improperly

Switch off the servo control system or
the controller immediately.

Check whether the servo control
parameter settings correspond to the
selected closed-loop control mode; see
user manual of the controller.

If necessary, correct the settings of the
servo control parameters.
Target position is
not kept stable
Uncontrolled
oscillation of the
V-551
Increased wear
 Warped base body
 Lateral forces on
motion platform too
high

Velocity too high

Traveling to the hard
stop with maximum
force

Mount the V-551 on an even surface.
The recommended flatness of the
surface is ≤20 µm.

Avoid lateral forces on the motion
platform of the V-551.

Ensure that the end of the travel range
is approached at low velocity and with
low force.
Reduced accuracy
No or limited
motion

Excessive load
 Excessive counterforces
in the direction of
motion

Reduce the load and/or counterforces
in the direction of motion.

Transport safeguard has
not been removed

Remove the transport safeguard (p. 13).

Improper displacement
of the hard stops

Check whether the adjustable parts of
the hard stops are correctly mounted
(p. 27).

Contact our customer service
department (p. 45).
 When operated with
C-891 controller:
Overheating protection
has been activated.

Wait a few minutes until the stage has
cooled off.

Re-establish the readiness of the system
for operation; see documentation of the
controller.
8 Troubleshooting