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94 Program features
Load encoder to load
scaling
90.53
X
e
Load encoder
90.54
Any gear ratio between the load encoder and the load is defined by
90.54. Similarly, any gear ratio between the motor encoder and the motor is defined
by
90.43
and 90.44. In case the internal estimated position is chosen as load
feedback, the gear ratio between the motor and load can be defined by
90.62. By default, all of the ratios mentioned above are 1:1. The ratios can only be
changed with the drive stopped; new settings require validation by 91.10.
Position counter
The control program contains a position counter feature that can be used to
indicate the position of the load. The output of the counter function, parameter
90.7, indicates the scaled number of revolutions read from the selected source
(see section
Load and motor
The relation between revolutions of the motor shaft and the translatory movement
of the load (in any given unit of distance) is defined by parameters
This gear function can be changed without the need of a parameter refresh or
position counter reinitialization – however, the counter output is only updated
after new position input data is received.
For detailed parameter connections of the load feedback function, see the block
diagram on page 748.
Load
Y
feedback).
Motor to load
scaling
90.61
1
X
X
Y
Y
90.62
Motor encoder to
motor scaling
90.43
X
M
Y
Motor
encoder
90.44
90.53
and
90.61
90.63
and 90.64.
e
and
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