Siemens SIMODRIVE 611 universal Function Manual page 568

6 Description of the Functions
6.8 Angular incremental encoder interface (X461, X462)
Angular
incremental
encoder –
direction-
dependent
Angular
incremental
encoder inversion
Fault handling
6-568
An axis is moved using the "electronic handwheel" dependent on the
direction.
The direction should be set as follows using parameter P0899[8]:
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P0899[8]=0: positive and negative direction (standard)
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P0899[8]=1: only in the positive direction
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P0899[8]=2: only in the negative direction
Note
Angular incremental encoder pulses in the inhibited direction do not
result in the output of faults or warnings.
In the inhibited direction, only the pulses of the velocity setpoint are
cancelled. The velocity actual value must not necessarily follow the
velocity setpoint, e.g. as a result of external forces or transient
operations. As a result, motion is also possible in the direction that has
not been enabled.
The handwheel direction of rotation can be inverted as follows:
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Using the input terminal function No. 75 "Invert angular incremental
encoder input", i.e. when the axis is stationary, the incremental posi-
tion reference value is immediately inverted with a 1 signal at the
input terminals.
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"External inversion position reference value", via parameter P0897 –
i.e. the inversion of the incremental position reference value with
P0897 = 1 – is only effective after power on.
The following actions are not possible and initiate the appropriate
faults:
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If the input terminals Fct. No. 62 or control signal STW1.8 (jogging 1
ON) or Fct. No. 63 or STW1.9 (jogging 2 ON) and Fct. No. 84 or
SatzAnw.13 (activate angular incremental encoder, handwheel) are
simultaneously activated, then fault 121 is output.
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If input terminal Fct. No. 72 or control signal PosStw.4 (activate cou-
pling) and Fct. No. 84 or SatzAnw.13 (activate angular incremental
encoder handwheel) are simultaneously activated, if a position refer-
ence value source is active via Parameter P0891, then fault 167 is
output.
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
E Siemens AG 2005 All Rights Reserved
06.04 01.99