Siemens SINAMICS S120 Manual page 530
Air-cooled chassis power units
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Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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Maintenance and Servicing
10.4 Replacing components
Description
The typical service life of the device fan is 40,000 hours. In practice, however, the service life
depends on other variables (e.g. ambient temperature, degree of cabinet protection, etc.)
and may therefore deviate from this value.
The fan must be replaced in good time to ensure that the device is available.
Preparatory steps
• Disconnect the drive line-up from the power supply
• Allow unimpeded access
• Remove the protective cover
Removal
The removal steps are numbered in accordance with the numbers in the diagram.
1. Loosen the retaining screws of the bottom cover (4 screws) and remove the cover.
2. Remove the retaining screws for the fan assembly (6 screws).
3. Release the connector for the fan supply and remove it.
4. Release the cable from the cable holder.
5. Completely remove the fan assembly from the device.
Installation steps
To reinstall, perform the above steps in reverse order.
The tightening torque of the retaining screws for the fan assembly is 10 Nm.
The tightening torque for the plug connector fastening screws for the fan power supply is
0.5 ... 0.6 Nm.
The tightening torque of the retaining screws of the bottom cover is 10 Nm.
528
Air-cooled chassis power units
Equipment Manual, 06/2020, 6SL3097-5AE00-0BP3
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