Schneider Altivar 71 VW3A7201 handleiding

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Handleiding

1757361 06/2012 21

Mounting and temperature conditions

Required mounting position

The braking unit has been designed to be mounted on a vertical wall only (+/- 15°). The unit can only be mounted on a smooth surface

without the use of any type of spacer. It must be mounted in this way to ensure correct circulation of the cooling air.

Important recommendations

• Leave sufficient free space!

- Leave a horizontal distance of at least 70 mm between the braking units and the other components, and between the braking units and

the enclosure walls.

- Leave a vertical distance of at least 70 mm between the braking units and the other components, and between the braking units and

the enclosure walls.

• Check that there are no obstacles to the entry and exit of the cooling air. Leave a minimum distance of 15 cm at the air intake and outlet

apertures.

• If the cooling air is polluted (dust, grease, corrosive gas) this may hamper some of the functions of the braking unit.

- Take appropriate measures, for example: Keep the cooling air separate, fit air filters, clean regularly.

• Do not exceed the acceptable ambient temperature during use.

A dissipated thermal power of 3% of the maximum nominal power must be taken into account. The air temperature must not exceed 40°C

(104°F) in the vicinity of the braking unit. The air intake and outlet apertures at the top and bottom of the braking unit must not be covered

by installation equipment such as cable ducts or other equipment.

The required air flow rate depends on the size of the braking unit (nominal power and nominal voltage).

(1) Some specific models have slightly different dimensions.

Braking module Required air flow rate (m

/h)

VW3A7 4-230, 7-230, 12-230, 18-230, 22-230, 25-230

VW3A7 7-400, 13-400, 22-400, 33-400, 45-400

VW3A7 22-460, 33-460, 45-460

VW3A7 18-500, 33-500, 45-500

200

VW3A7 38-230, 50-230, 75-230

VW3A7 70-400, 90-400, 135-400

VW3A7 70-460, 90-460, 110-460, 125-460

VW3A7 70-500, 90-500, 110-500, 125-500

350

VW3A7 75-230 (1)

VW3A7 135-400 (1)

VW3A7 125-460 (1)

VW3A7 125-500 (1)

VW3A7 70-690 (1)

450

VW3A7 90-230, 115-230

VW3A7 160-400, 200-400, 250-400

VW3A7 140-460, 160-460

VW3A7 140-500, 160-500

VW3A7 150-690, 250-690

700

Bekijk gratis de handleiding van Schneider Altivar 71 VW3A7201, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.