Danfoss VLT 8000 AQUA series User Manual

VLT
®
8000 AQUA
Installation
■ Mains connection
Mains must be connected to terminals 91, 92, 93.
Nos. 91, 92, 93 Mains voltage 3 x 200-240 V
L1, L2, L3 Mains voltage 3 x 380-480 V
Mains voltage 3 x 525-600 V
Mains voltage 3 x 525-690 V
NB!:
Check that the mains voltage corresponds to
the mains voltage of the frequency converter,
which can be seen from the nameplate.
See Technical data for correct sizing of cable
cross-sections.
NB!:
It is the responsability of the user or installer
to ensure that proper earthing, branch
circuit, and motor overload protection is
in accordance with national and local electrical
and safety regulations and codes.
■ Motor connection
The motor must be connected to terminals 96,
97, 98. Earth to terminal 94/95/99.
Nos.
96. 97. 98
U, V, W
Motor voltage 0-100 % of mains voltage
No. 94/95/99 Earth connection
See Technical data for correct sizing of cable
cross-sections.
All types of three-phase asynchronous standard motors
can be used with a VLT 8000 AQUA unit.
Small-size motors are normally star-connected.
(220/380 V,
/Y). Large-size motors are
delta-connected (380/660 V,
/Y). The correct
connection and voltage can be read from
the motor nameplate.
NB!:
In older motors without phase coil insulation,
a LC filter should be fitted to the frequency
converter output.
■ Direction of IEC motor rotation
The factory setting is for clockwise rotationwith the VLT
frequency transformer output connected as follows.
Terminal 96 connected to U-phase
Terminal 97 connected to V-phase
Terminal 98 connected to W-phase
The direction of rotation can be changed by switching
two phases in the motor cable.
■ Parallel coupling of motors
VLT 8000 AQUA is able to control several motors
connected in parallel. If the motors are to have different
rpmvalues,themotorsmusthavedifferentrated
rpm values. Motor rpm is changed simultaneously,
which means that the ratio between the rated rpm
values is maintained across the range.
The total current consumption of the motors is
not to exceed the maximum rated output current
I
VLT,N
for the frequency converter.
MG.83.A2.02 - VLT is a registered Danfoss trademark
75

Danfoss VLT 8000 AQUA series Specifications

General

Brand	Danfoss
Model	VLT 8000 AQUA series
Category	DC Drives
Language	English