Gearbox Stage Selection; Function Sequence When Changing The Gearbox Stage - Siemens SINAMICS S 1PH7 Configuration Manual

5.4.6

Gearbox stage selection

When changing the gearbox stage, the following information must be carefully observed:
● Only change over the gearbox stage at standstill; e.g. while changing the tool.
● During selection, the direction of rotation should be changed approximately 5 times per
● The motor may only start to accelerate 200 ms after the changeover has been completed.
● The selection must be monitored using a time relay.
Figure 5-7

Function sequence when changing the gearbox stage

1PH7 induction motors (Machine tools)
Configuration Manual, (APH7W), 04/2009, 6SN1197-0AD72-0BP0
second. The gears normally mesh at the first direction of rotation change so that selection
times of between 300 and 400 ms can be achieved.
Changeover should be withdrawn if the changeover command was not able to be
executed after 2s.
A time limit of 10 s should be applied for approximately 4 to 5 additional attempts to
change the gearbox stage.
Motor components (options)
5.4 Gearbox
201