Nidec Control Techniques Unidrive M Modular - Page 45

Safety information Introduction Product information System configuration
Mechanical
Installation
Electrical Installation
Unidrive M Modular Installation Guide 45
Issue Number: 2
Figure 5-27 Enclosure design example
Drive selection
Select drives necessary to achieve desired output current based on
altitude calculation and other drive derates (e.g. paralleling derates,
switching frequency derates, ambient derate etc).
Enclosure design to prevent recirculation of hot air
Figure 5-28 Recommended enclosure design
For front view of enclosure, refer to Figure 5-27.
Spacing between units and sides of enclosure: >60 mm
L1 L1
L2
L2
9E 10E 9E 10E
L1
L2
Recirculated
air
Input air
flow
Output air
flow
Enclosure
vent