Nidec Leroy-Somer Powerdrive MD Smart, Руководство по интеграции

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103
MECHANICAL INSTALLATION
Powerdrive MD Smart Integration Guide
5751 en - 2021.10 / e
MECHANICAL INST
ALLA
TION
3.5 - Liquid cooling management
3.5.1 - Flow rate
MD3 chassis
Rectifier T1
MD3REC1CL
Rectifier T2
MD3REC1CL
Rectifier T3
MD3REC1CL
Inverter T1
MD3INVCL
Inverter
MDINVCL T2
Inverter
MDINVCL T3
Flow rate (L/
Min)
6 6 6 6 12 16
Maximum
pressure loss
(bar)*
1 2 2 2 2 2
Max water
temperature
45
Max ambient
TEMPERATURE
(°C)
40
Cold plate max
pressure loss
(Bar)
2
Cooling Fluid Water with 25% Glycol
* The pressure loss depends on the fittings used
Maximum pressure : 5 bars
To avoid condensation in the enclosure:
- Respect the temperature of the coolant indicated in the table below
- Stop the flow of liquid when the variable speed drive is turned off for more than a minute
Minimum coolant
temperature
Air temperature inside the enclosure (°C) at 1 bar
10°C 15°C 20°C 25°C 30°C 35°C 40°C 45°C 50°C
Relative
humidity
(%)
40% -2.6 1.5 6.0 10.5 15.0 19.4 23.8 28.2 32.8
50% 0.1 4.7 9.3 13.9 19.0 23.0 27.6 32.1 36.7
60% 2.6 7.3 12.0 16.7 21.0 26.0 30.7 35.4
70% 4.8 9.6 14.4 19.1 24.0 29.0 33.5 38.2
80% 6.7 11.6 16.4 21.3 26.0 31.0 35.9
90% 8.4 13.4 18.3 23.2 28.0 33.0 38.0
Example: for an air temperature of 40°C and a relative humidity of 50% inside the enclosure.
The temperature of the coolant shall not fall below 27.6°C.