Baumuller b maXX BM5800, Руководство по параметрам

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Description of the Software Modules and Parameters
Parameter manual b maXX BM5800
Document No.: 5.16029.03
163
of 814
3
106.12
Encoder position actual value
Combined actual value position of the encoder (contains revolutions
Z
106.11
–
and angel
Z
106.10
–
) in position resolution (fixed at 16 bits per revolution at present). Includes rev-
olutions and angles. If the encoder is selected for position control, it corresponds with pa-
rameter
Z
18.54
–
.
106.15
Revolution overflow counter
This parameter counts the overflows of parameter "Encoder actual revolutions"
(
Z
106.6
–
) from 0 up to the (maximum value -1). The maximum value is specified in pa-
rameter "Revolution overflow counter max value" (
Z
106.16
–
).
The counter value is saved retentive after the controller was switched off and on again.
In the off-state position changes of multiturn encoders are detected up to a maximum of
¼ of the position revolution range "Number of revolutions" (
Z
137.2
–
). The value of "Rev-
olution overflow counter" (
>
106.15
<
) is corrected correspondingly.
The parameter is writable. The controller rejects an input value, which is greater or equal
than the value "Revolutions overflow counter maximum value" (
Z
106.16
–
).
The overflow counter can be used for the following functions
m
Addition of the overflow count revolutions to the actual positioning value (
Z
106.11
–
or
Z
106.12
–
) at the encoder initialization. The Activation of the function is made by
Z
106.3
–
encoder options bit 10.
m Z
121.17
–
modulo actual position value and
Z
121.12
–
actual position value with over-
flows. The activation of this function is made by
Z
121.1
–
positioning general mode
bit 4.
106.16
Revolution overflow counter max value
This parameter specifies the maximum counter limit for the encoder revolution overflow
counter (
Z
106.15
–
) from which the overflow counter starts with 0 again.
If the value of the parameter is equal to 0 or 1, the parameter
Z
106.15
–
does not count.
NOTE!
At singleturn encoders as well as at resolvers the overflow count operates as well.
The correctable ¼ revolution range is a +-¼ encoder revolution. Therefore the over-
flow count can not be corrected even after a revolution which is greater than a ¼ rev-
olution in the switched off status. After an encoder error at a rotating motor the
permitted revolution can be exceeded from the encoder information loss onward. In
both cases the overflow count of the encoder is incorrect after a restart or a re-initial-
ization!
At incremental encoders the overflow count cannot be used.