3.3
Cooling system test
The test is performed with a calibrated cooling unit of the test station.
3.3.1
Static pressure test
Fundamentals
Tests are performed according to IEC 61800-5-1 and DIN EN 805.
The drive cooling system is checked for leaks and pressure drop for one hour.
Test procedure
1. The cooling system is filled with coolant and the valves in the supply and return lines are
closed.
2. With the valves closed, pressure is increased to a test pressure of p
t
and is controlled for the
next 10 min.
3. After a total of 30 min, pressure p
1
is measured.
4. After a total of 60 min, pressure p
2
is measured.
3UHVVXUH
7HVW
SUHVVXUH
3W
3
3
PLQ
ืPLQ
PLQ
PLQ
7LPH
3UHOLPLQDU\WHVW
0DLQWHVW
Figure 3-1
Procedure for the pressure test
5. The pressure drop is calculated from measured values: Δp = p
1
- p
2
Tests
3.3 Cooling system test
SINAMICS GL150 6SL3855 F03 F70 F76 F79 F98 E11
30
Reference Manual Rev.201902141423 GL150 wassergekühlt
