Siemens SINAMICS S120 Equipment Manual page 88

Line Modules Booksize
3.3 Active Line Modules with External Air Cooling
Danger
If a 50 mm wide Motor Module or if a DC link component with the appropriate width
(e.g. Braking Module, Control Supply Module, Voltage Clamping Module) is located at the
lefthand end of the drive line-up, then the DC link bridge including all of the screws must be
removed. It is not permissible to insert the screws without a DC link bridge.
For all other power units and DC link components (e.g. Capacitor Module) that are wider
than 50 mm, it is neither permissible to move the DC link bridge to the left nor remove it.
If this is not carefully observed, this can result in damage and accidents.
Caution
The total length of all the power cables (motor supply cables and DC link cables) must not
exceed 350 m in active mode.
Caution
Only cables from Siemens must be used for DRIVE-CLiQ connections.
Notice
The external air cooling can cause the fans and the heat sink to become heavily
contaminated, which may trigger the temperature monitor in the power unit. The fans and
heat sink must be checked for contamination at regular intervals and, if necessary, cleaned.
Note
After installation, the seal on the rear of the device must be checked to ensure that it is tight.
Additional sealing can be used, if necessary.
Caution
The ratio between the system fault level and the rated power of the Line Module must be
≥ 70.
Caution
The left and right ends of the DC link busbar of a drive line-up must be closed using lateral
covers (Order No.: 6SL3162-5AA00-0AA0).
Warning
If the Line Module is not disconnected from the network (e.g. via the main contactor or main
circuit-breaker), the DC link remains charged.
3-22
Equipment Manual for Booksize Power Units
Equipment Manual, (GH2), 03/2006 Edition, 6SL3097-2AC00-0BP3