Siemens PM330 - Replacing the PSB Module

Service and maintenance
5.4 Replacing additional components
Power Module PM330
Hardware Installation Manual, 12/2018, A5E32844552B AF
73
5.4.2
Replacing the PSB module
Replacing the PSB module
Figure 5-5 Replacing the PSB module
Preparatory steps
● Disconnect the built-in unit from the power supply.
● Allow unimpeded access.
● Remove the protective cover.
● Open the device, see Chapter "Opening the device (Page 71)"
Removal steps
1. Withdraw the plug connections ①.
2. Remove the 5 screws from the corresponding PSB module
②.
3. Withdraw the PSB module.
Installation steps
To reinstall, perform the above steps in the reverse order.
Tightening torque for the PSB module fastening screws: 1.8 Nm
Note
Carefully insert the p
lug-in connections and ensure that they are secure.