Gearbox switchover with increased position tolerance
In order to switch over the gearbox stage, where increased tolerance is required for the
crosswise comparison of the actual positions, proceed as follows:
Note
Maximum duration of the increased position tolerance
It is not permissible that the increased position tolerance is set for longer than 2 min. If this time
is exceeded, then the converter outputs alarm C01711 with fault value 1015 (≙ STOP F).
● Set the increased position tolerance using bit 3 (= 1) in byte 3 of S_STW2.
● Set the new gearbox stage using bits 0 to 2 in byte 3 of S_STW2.
● Set the position tolerance back to the normal value using bit 3 (= 0) in byte 3 of S_STW2.
● The actual values are then synchronized once automatically. This synchronization is used
to compensate any possible difference that occurs between the position actual values of the
two monitoring channels as a result of the switchover operation.
● The new gearbox stage is then active.
Safety functions integrated in the drive
4.20 Safe gearbox stage switchover
Safety Integrated (with SINAMICS S120)
200 Commissioning Manual, 02/2020, A5E46305916B AB
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