Siemens SINAMICS GL150 - Disconnecting the Fiber-Optic Cables; Replacing Surge Arresters

9.7.6.4 Disconnecting the fiber-optic cables
Tools required
You require a fiber-optic cable cutter (Order No. A5E02615209) to cut the fiber-optic cables to
length.
Procedure
NOTICE
Destruction of the fiber-optic cables
Fiber-optic cables can be destroyed under the following conditions:
● The bending radius is less than 20 mm.
● The fiber-optic cables are subject to strong light.
● The fiber-optic cables are exposed to temperatures of over 80° C.
Handle the fiber-optic cables carefully. Do not bend them with a bending radius of less than
20 mm. Protect the fiber-optic cables from heat and strong light.
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① Knurled nut
② Fiber-optic cable
Figure 9-11 Releasing a fiber-optic cable
To disconnect the fiber-optic cables, proceed as follows:
1. Carefully unscrew the knurled nut ①.
2. Pull the fiber-optic cable ② out.
3. Insert the new fiber-optic cable as far as it will go. If correctly fitted, the white ID ring must be
flash with the opto-transmitter or opto-receiver.
4. Tighten the knurled nut ① again by hand.
9.7.7 Replacing surge arresters
To replace the surge arrester, proceed as follows:
1. Release the screws.
2. Remove the defective surge arrester.
Maintenance
9.7 Repairs
SINAMICS GL150 6SL38555UN113KA0Z
146 Operating Instructions Rev.201910281450 EXAMPLE