Replacing Line-Side Fuses; Replacing Contactors - Siemens SINAMICS GL150 Operating And Installation Instructions

9.6.7

Replacing line-side fuses

Check the fuses after an overcurrent trip. When a fuse trips, the indicator
①
Figure 9-8
If a fuse has tripped, you must replace all of the fuses. The order numbers for replacing fuses
that have blown can be found in the spare parts list.
To replace the fuses, proceed as follows:
1. Observe the five safety rules.
2. Open the cabinet.
3. Remove the fuses.
4. Rectify the cause of the fault.
5. Install the replacement fuses.
6. Close the cabinet.
9.6.8

Replacing contactors

Use of wrong contactors
Use of the wrong contactor can result in a malfunction and thus lead to physical injuries and
material damage.
Always use contactors of the same type. Check the device numbers of the previous and new
contactors.
To replace the contactors, proceed as follows:
1. Loosen the cables. To do so, unscrew the screws.
2. Remove the contactor from the DIN rail.
3. Snap the new contactor onto the DIN rail.
SINAMICS GL150 6SL38503UM114PA0Z
Operating Instructions 04/2017
Indicator
Line-side fuse
CAUTION
Maintenance
9.6 Repairs
①
flips up.
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