Rockwell-automation 6000 PowerFlex Medium Voltage Variable Frequency D Instrukcja Użytkownika Pobierz pdf (Strona 39)

Rockwell Automation Publication 6000-IN006A-EN-P - April 2014 39

Drive Mechanical Installation Chapter 2

• An air inlet must be added to the drive room. The cross-sectional area of

this inlet must meet the ventilation requirements of all drives. Screens

must be installed in the air inlet.

• The air inlet must be at least 1000 mm (39.4 in.) above the floor.

• The air inlet and outlet must not be at the same side of the drive room.

Air Conditioning Sizing

If the drive is located in an enclosed space, install air conditioners for each drive.

A general formula to calculate air conditioner power required:

Air Conditioning Size (tons)

This is for a general estimate. Refer to the actual heat loss data to calculate air

conditioning sizing. Contact the local Rockwell Automation office for actual

data.

Figure 25 - Airflow for Fixed-mounted and Drawout Cabinet Configurations

(1)

EXAMPLE

For a 1000 kW drive with 96.5% efficiency:

tons of AC required

(1) Top ducting shown by contractor.

DriveRating kW1 DriveEfficiency–

3.5

-------------------------------------------------------------------------------------------------------------

1000 1 0.965

–

3.5

----------------------------------------------

10=

Fixed-mounted Power Module Configuration

Drawout Power Module Configuration

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 97 98

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Rockwell-automation 6000 PowerFlex Medium Voltage Variable Frequency D Instrukcja Użytkownika Strona 39