Operating instructions

VLT® HVAC drives
– optimized for installation in panels
The installation volume and/or the
mounting surfaces are reduced by up
to 60% compared to the previous
series.
The functional sections nevertheless
fulfi ll the highest requirements even
for applications with high overload,
long motor cables and ambient
temperatures up to 50° C (55° C with
derating).
Optimized design
Optimized effi ciency and intelligent
cooling technology make for a
compact and service-friendly design.
Supplementary equipment such as
EMC fi lters, harmonics suppression
and brake modules are integrated
into the enclosure.
Total separation between cooling air
and electronics protects the elec-
tronics and allows for solutions where
heat is removed from outside of the
cabinets.
With the VLT® HVAC Drive, a fl anged
heat sink kit is available for mounting
the drive in the backplate of a cabinet,
separating the heatsink airfl ow from
the electronics.
Eliminating airfl ow over the elec-
tronics increases lifetime as contami-
nants are excluded from the drive.
Back channel cooling minimizes heat
loss increasing energy effi ciency, a
signifi cant benefi t for high power
drives.
IP 20/Type 1 enclosures
Intelligent heat management
– variable cooling methods for diff erent benefi ts
Save installation time
The IP20/NEMA 1 series is designed
for easy accessibility and time-saving
installation. Mechanical fastening
points are easy to access from the
front even with automatic tools.
All terminals are suffi ciently dimen-
sioned and clearly marked. One needs
only loosen a few screws to get to the
terminals.
Accessories for bonding screened
cables are included. The compact
enclosures are easier to install. This is
important especially within existing
installations with limited accessibility.
An extensive range of options and
accessories are available, optimizing
the drive for the respective
application.
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