Maintenance - Siemens Sinamics G120P Operating Instructions Manual

10.3

Maintenance

Servicing involves activities and procedures for maintaining and restoring the specified
condition of the device.
Required tools
The following tools are required for replacing components:
● Spanner or socket spanner (w/f 10)
● Spanner or socket spanner (w/f 13)
● Spanner or socket spanner (w/f 16/17)
● Spanner or socket spanner (w/f 18/19)
● Hexagon-socket spanner (size 8)
● Torque wrench 5 Nm to 50 Nm
● Screwdriver, size 2
● T20 torx screwdriver
● T25 torx screwdriver
● T30 torx screwdriver
A socket wrench kit with two long extensions is recommended.
Tightening torques for screw connections
The following tightening torques apply when tightening connections of operating current-
conducting parts (DC link / motor connections, general busbars), non-operating current-
conducting parts (ground connections, ground terminal connections), and general steel
threaded connections.
Table 10- 1
NOTICE
Screw connections for protective covers
The threaded connections for the protective covers made of Makrolon must only be
tightened with 2.5 Nm.
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
Tightening torques for screw connections
Thread Ground connections, protective
conductor connections, steel
(fault current-conducting)
M3
M4
M5
M6
M8
M10
M12
threaded connections
1.3 Nm
3 Nm
6 Nm
10 Nm
25 Nm
50 Nm
88 Nm
Maintenance and servicing
10.3 Maintenance
Plastic, busbars (operating current-
conducting)
0.8 Nm
1.8 Nm
3 Nm
6 Nm
13 Nm
25 Nm
50 Nm
455