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3 VLT AQUA Selection
The minimum enclosure depth is 500 mm (600 mm for E2 frame) and the kit is designed for a 600 mm (800 mm for E2 frame) wide enclosure. Other
enclosure widths are possible, however additional Rittal hardware is required. The maximum depth and width are as required by the installation.
NB!
The current rating of drives in D3 and D4 frames are de-rated by 3%, when adding the NEMA 3R kit. Drives in E2 frames require no
derating
3
NB!
A door-fan(s) is required on the Rittal cabinet to remove the loses not contained in the back-channel of the drive. The minimum door-
fan(s) airflow required at the drive maximum ambient for the D3 and D4 is 391 m^3/h (230 cfm). The minimum door-fan(s) airflow
required at the drive maximum ambient for the E2 is 782 m^3/h (460 cfm). If the ambient is below maximum or if additional compo-
nents, heat loses, are added within the enclosure a calculation must be made to ensure the proper airflow is provided to cool the inside
of the Rittal enclosure.
Ordering information
Frame size D3: 176F4600
Frame size D4: 176F4601
Frame size E2: 176F1852
Kit contents:
•
Ductwork components
•
Mounting hardware
•
16 mm, M5 torx screws for top vent cover
•
10 mm, M5 for attaching drive mounting plate to enclosure
•
M10 nuts to attach drive to mounting plate
•
Gasket material
Torque requirements:
1.
M5 screws/ nuts torque to 20 in-lbs (2.3 N-M)
2.
M6 screws/ nuts torque to 35 in-lbs (3.9 N-M)
3.
M10 nuts torque to 170 in-lbs (20 N-M)
4.
T25 Torx screws torque to 20 in-lbs (2.3 N-M)
NB!
Please see the instructions
3.7.3 Installation on Pedestal
This section describes the installation of a pedestal unit available for the
frequency converters frames D1 and D2. This is a 200 mm high pedestal
that allows these frames to be floor mounted. The front of the pedestal
has openings for input air to the power components.
The frequency converter gland plate must be installed to provide ade-
quate cooling air to the control components of the frequency converter
via the door fan and to maintain the IP21/NEMA 1 or IP54/NEMA 12 de-
grees of enclosure protections.
84
175R5922
for further information
®
MG.20.N5.02 - VLT
is a registered Danfoss trademark
®
VLT
AQUA Drive Design Guide
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