Siemens SINAMICS DCM Manual page 664

11.2.2 Replacing fuses
Note
Every time a fuse blows, all of the arm fuses must be replaced.
For units >850 A, as described here, these are the fuses installed in the unit.
For units ≤850 A, these are the externally installed fuses.
Replacing fuses for 900 A to 1200 A units
The fuses are accessible from the front after removing the front cover and swiveling the
support plate for the electronics out of the way. The fuses are fixed with 2 hex screws each
①
(width across flats 16). Tightening torque 25 Nm.
Figure 11-9 Replacing fuses for 900A to 1200 A units
SINAMICS DCM DC Converter
Operating Instructions, 02.2015, A5E34763375/RS-AA/001
ac.maher.co.ir
Maintenance
11.2 Replacing components
665