9.7.1 Replacing the AVT combination module
WARNING
Danger caused by high voltages at the AVT combination module and the precision measuring
resistors
The AVT combination modules and measuring resistors are at hazardous voltage levels.
Touching these components can result in death, severe injury and significant material
damage.
● Never touch the AVT combination modules or measuring resistors under any
circumstances.
WARNING
Danger when making changes to the design of the voltage or ground fault detection
Changes to the voltage or ground fault detection, e.g. to the measuring resistors, are
potentially lethal. This can result in substantial property damage, physical injuries and death.
● Do not change the design of the voltage or the ground fault detection.
Removing the AVT combination module
1. Follow "the five safety rules (Page 15)".
2. Release the control cables ①. Carefully ensure that you do not kink the fiber optic cables.
3. Remove the four fixing screws ② of the AVT combination module.
Figure 9-5 Example of an AVT combination module
Maintenance
9.7 Repairs
SINAMICS GL150 6SL38503UM114PA0Z
118 Operating Instructions Rev.201910301420 MUSTER
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