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User Manual
MP40E, version 1.2.0, valid for M-227.10, M-227.25, M-227.50
CBo, 5/20/2019
Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany
Page 15 / 26
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email
NOTICE
Unintentional motion!
Unintentional motion of the M-227 is possible when connecting it to the controller.
Before connecting the M-227, check whether a macro is defined as the startup macro in
the controller and cancel the selection if necessary.
INFORMATION
Unsuitable settings made to the servo control parameters can impair the performance of the
M-227. The consequences of this can be expressed as follows:
Oscillation
Imprecise approach of the position
Settling time is too long
If the performance of the M-227 is not satisfactory, check the settings for the servo control
parameters of your controller.
Use the default parameters for the first startup only.
INFORMATION
Due to its compact design, the M-227 does not have internal limit switches. Without limit
switches, the M-227 must be stopped manually to avoid collision with the hard stop.
Therefore, we strongly recommend using external limit switches. Note that all PI motor
controllers support limit switches.
INFORMATION
If the programmed velocity is too high, accelerating and decelerating ramps will not be
performed as programmed, and the physical velocity will be lower than the profile velocity.
When this happens the trajectory generator may have already completed its move while the
actuator is still trying to catch up.
Operating Parameters
If you use the software from the scope of delivery of the electronics (p. 10), the operating
parameters can be loaded from the positioner database. The records in the positioner database
are updated regularly.
Install the PI Update Finder from the product CD for the electronics onto your PC and
update the positioner database on your PC.
Further information can be found in the user manual for the electronics (p. 10).