Storage; Emptying The Drive - Siemens SINAMICS S120 Operating Instructions Manual

Preparations for use

3.5 Storage

See also
Checking shock and tilt indicators (Page 46)
3.5 Storage
NOTICE
Formation of condensation with open transport packaging
If the transport packaging is open and the auxiliary power is not connected for heating
operation or normal operation, condensation can form which can damage the unit.
Store the inverter in its transport packaging.
3.5.1

Emptying the drive

NOTICE
Unemptied cooling system
The coolant can corrode the components over the long term. Coolant can also freeze at
temperatures of below 0° C causing damage to the drive.
Make sure that the coolant has been completely removed from the system before the device
is placed in storage.
If the drive is stored for a longer period of time, then close and seal all water intakes and
discharge points to protect against vermin and dirt.
If the drive was already connected to the cooling system and you want to store the drive away
again, empty the drive completely prior to storing. To empty the drive proceed as follows:
1. Open the connection between the cabinet piping and the external piping.
2. Drain the coolant.
3. Then tighten the screws again.
4. At one of the flanges of the cabinet piping, connect oil-free compressed air or a nitrogen
bottle. Use a suitable transition element. Blow out any residual water.
NOTICE
Blow-out pressure too high
If the blow-out pressure used exceeds 6 bar, the piping and the heat sink can become
damaged.
Do not exceed the blowout pressure of 6 bar. Avoid pressure surges.
58
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A