Servicing The Cabinet - Siemens SINAMICS S120 Equipment Manual

Maintenance and servicing

6.3 Servicing the cabinet

6.3 Servicing the cabinet
Servicing involves activities and procedures for maintaining and restoring the operating
condition of the cabinet.
Required tools
The following tools are required for replacing components:
● Spanner or socket spanner (width across flats 10)
● Spanner or socket spanner (width across flats 13)
● Spanner or socket spanner (width across flats 16/17)
● Spanner or socket spanner (width across flats 18/19)
● Hexagon-socket spanner (size 8)
● Torque wrench up to 50 Nm
● Screwdriver (size 1/2)
● Screwdriver Torx T20
● Screwdriver Torx T30
A socket-spanner case with two long extensions is recommended.
Tightening torques for connecting current-conducting parts
When securing connections for current-conducting parts (DC link/motor connections,
busbars), you must observe the following tightening torques.
Table 6- 1
Cable and screw terminals
Cable and screw terminals must be checked regularly to ensure that they are securely in
position and, if necessary, retightened. Cabling must be checked for defects. Defective parts
must be replaced immediately.
Note
The actual intervals at which maintenance procedures are to be performed depend on the
installation conditions (cabinet environment) and the operating conditions.
Siemens offers its customers support in the form of a service contract. For further details,
contact your regional office or sales office.
234
Tightening torques for connecting current-conducting parts
Screw
M6
M8
M10
M12
Torque
6 Nm
13 Nm
25 Nm
50 Nm
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A