Figure 9-4 Disengaging The Interlocking On The Thyristor Electronics - Siemens SINAMICS SL150 6SL38655UM427AA02 Operating Instructions Manual

Changing the thyristor electronics
To change the thyristor electronics, proceed as follows:
1. Two plastic latches interlock the thyristor electronics. The plastic latches
2. Take out the thyristor electronics.
3. Push the new thyristor electronics (with component side facing to the right) completely into
4. Fold the plastic latches
5. Tighten the screws
6. Send the thyristor electronics back. See Notes on sending back (Page 80).
SINAMICS SL150 6SL38655UM427AA02
Operating Instructions Rev.201910281507 EXAMPLE
①
cylinder head screws
released. Fold the plastic latches to the bottom right or top right.
①
Cylinder head screw
②
Plastic latch
Figure 9-4 Disengaging the interlocking on the thyristor electronics
NOTICE
Damage to the thyristor electronics
The thyristor electronics are clamped very tightly in the connectors. The thyristor
electronics can be damaged during removal.
● Never remove the thyristor electronics from the electronics shielding enclosure; remove
them from the heat sink only.
the thyristor module slot. There must be no gap between the plug connector and the socket
connector.
①
.
. Use a screwdriver to loosen these screws until the interlocking is
②
back into place.
Maintenance
9.6 Repairs
②
are fixed with
79