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N O T I C E
RISK OF DRIVE FAILURE
Combining enclosure sizes that have dierent inrush control principles may lead to drive failure.
Ensure that the applied inrush control principles are compatible before combining drives in a load sharing application.
Table 12: Inrush Control Principles for Individual Enclosure Sizes
AC inrush thyristor limited
AC inrush resistor limited
The following enclosure size combinations are possible in load sharing applications:
A and B enclosures can be combined with other A or B enclosures.
C, D, E, and F enclosures can be combined with other C, D, E, or F enclosures. However, C enclosures can only be combined with
F enclosures under the following circumstances:
All drives are connected to mains or
only the F enclosure is connected to mains.
It is not possible to combine F and C enclosures if only the C enclosure is connected to mains.
If the A/B enclosure drive is not connected to mains, A and B enclosures can be combined with C, D, E, or F enclosures.
N O T I C E
RISK OF DRIVE FAILURE
Combining A or B enclosures connected to mains with C, D, E, or F enclosures causes overload of the rectier in the A and B
enclosures during inrush and normal load conditions.
Ensure that A and B enclosures are not connected to mains when combining them with C, D, E, or F enclosures.
To have the correct design of load sharing circuit, consult the application note Load Sharing for more details.
AJ300847815559en-000101 / 130R0337 | 55Danfoss A/S © 2020.09
Product Features
VLT® AQUA Drive FC 202
Design Guide
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