Step 4

1. You can then open the safety guard.
2. After the safety guard has been removed, you can pull out the mechanical extension of the disconnector. This simplifies accessibility to the internal components and avoids injuries from the relatively long, pointed component. To ensure the correct installation depth when reinstalling the linkage, mark the linkage before removing it.
3. You must ascertain again that there is a de-energized state between the first module on the positive pole and the last module on the negative pole. No voltage greater than 0 V is permitted to be present due to the connected short circuit connector.
4. The voltage between the last module on the negative pole and the PE must also be 0 V.
5. Measure the individual module voltages between the positive and negative poles. They must not be higher than ± 3 V.
6. Measure the voltage between the positive pole and the PE for each module. The voltage must be 0 V.
7. If a value outside the specified measured values is measured in the voltage measurements, contact SEW-EURODRIVE Service.