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.
①
Knurled nut
②
Fiber-optic cable
Figure 9-10
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.
9.7.9
Replacing surge arresters
To replace the surge arrester, proceed as follows:
1. Release the screws.
2. Remove the defective surge arrester.
3. Insert the new surge arrester.
4. Screw the surge arrester in place with the following torque:
3EK7 = 40 Nm
3EJ2 = 70 Nm
The surge arrester must not be subject to a transverse force greater than 370 N.
Maintenance
9.7 Repairs
SINAMICS GL150 6SL38503UM114PA0Z
Operating Instructions Rev.201910301420 MUSTER
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