9.7.1 Components that can be replaced
WARNING
Danger to life when replacing components that are not permitted to be replaced
Incorrect replacement of components can result in death, severe injury and material damage.
● Only replace components where replacement is permissible. Contact the Service Center
if other components are defective. You can find the relevant contact person under "Service
& Support (Page 145)".
The following components may be replaced by qualified maintenance and installation
personnel:
● AVT combination modules
● Current transformer
● Precharging transformer
● Precharging rectifier
● Power cell
● Diode power card or diode stack
● Sensors (for conductivity, pressure, and temperature)
● Operator panel
● CompactFlash card
● Low-voltage components (e.g. anti-condensation heating, fans, contactors)
● Bypass
9.7.2 Torques
The following table contains the default values. If the replacement of a component requires
different torques, they are specified in the associated sections.
Table 9-3 Tightening torque for screws
Screw type Soft materials S3
1
Hard materials S2
2
Hard materials S1
3
nm in - lb nm in - lb nm in - lb
M3 0.8 7.1 1.8 15.9 1.3 11.5
M4 1.8 15.9 3.9 34.5 3.0 26.6
M5 3.0 26.6 7.8 69.0 6.0 53.1
M6 6.0 53.1 13.0 115 10.0 88.5
M8 13.0 115 32.0 283 25.0 221
M10 25.0 221 65.0 575 50.0 443
Maintenance
9.7 Repair
SINAMICS PERFECT HARMONY GH150 6SL38253AE412AA1-Z
116 Operating Instructions Rev.201910281231 EXAMPLE
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