Bosch PIN8 N1 Guia de Resolução de Problemas Página 208

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5-84 Motor, Mechanical Axis System, Measuring Systems MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
actual position value
displayed (S-0-0051/S-0-0053)
actual position value
measured
position data in
modulo format
position data in
absolute format
S-0-0103
S-0-0051: position feedback 1 value
S-0-0053: position feedback 2 value
S-0-0103: Modulo value
Fig. 5-97: Actual position value for axis motion with constant velocity for
absolute and modulo format
The "modulo format" selection for actual position values is only
appropriate for rotary motors, because e mechanically unlimited travel
range is only possible for axes with rotary motors. The "modulo format"
therefore is only allowed for rotary motors, not for linear motors!
Note: The condition "rotary motor" for selecting "modulo format" is
checked when the drive progresses to the ready-for-operation
status. If the condition has not been fulfilled, an error is
signaled!
When using the modulo format, the following restrictions and conditions
have to be observed and complied with:
Due to the firmware-internal conversion of absolute format to modulo
format, the allowed maximum velocity is as follows:
m
s
S
v
2
01030
max
=
v
max
: maximum velocity or maximum angular velocity
S-0-0103: Modulo value
Fig. 5-98: Allowed maximum velocity for modulo format
WARNING
Possible property damage caused by errors
when controlling motors and moving parts!
The value in S-0-0091, Bipolar velocity limit value
mustnt be higher than the allowed maximum velocity
for modulo format!
In the case of encoders evaluated in absolute form, the mechanical
drive system, with the drive switched off, may as a maximum be
moved by a distance or angle corresponding to half the absolute
encoder range (S-0-0378/S-0-0379, Absolute encoder range of
motor encoder/optional encoder)! The actual position value after
switching on can otherwise be incorrect! This, however, cannot be
diagnosed on the controller side!
Modulo Format -
Requirements
Restrictions/Conditions for
"Modulo Format"
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