Cooling System Test; Air Flow Direction; Air Pressure Monitoring - Siemens SINAMICS GL150 Reference Manual

Tests

3.3 Cooling system test

3.3 Cooling system test
3.3.1

Air flow direction

Fundamentals
It is only guaranteed that the drive is correctly cooled when the fan rotates in the correct
direction of rotation.
Test procedure
1. The auxiliary voltage is present.
2. The drive is switched on.
3. The air flow direction is checked at the ventilation grilles.
Result
The test is passed if the air flows from the doors up to the roof section.
3.3.2

Air pressure monitoring

Fundamentals
The test reveals whether the air pressure monitoring switches off the drive when a fan fails.
Test procedure
1. The auxiliary voltage is present.
2. The cabinet fans are switched on.
3. One of the fans is switched off. Alternatively, the switching threshold is increased at the
4. If no fan is switched in again within 10 s, the drive switches off. A fault is displayed on the
Result
The test is passed if the drive responds as described.
26
The fans switch on.
pressure monitor in the drive. This simulates fan failure.
An alarm is displayed on the test station computer.
test station computer.
SINAMICS GL150 6SL3850 F03 F70 F98 E11
Reference Manual Rev.201902141420 GL150 luftgekühlt