Danfoss VT2800 Series User Manual

VLT
®
2800 Series
■ Safety clamp
If the galvanic isolation (PELV) between
control terminals and high-voltage terminals
is to be maintained, the ac companying
safety clamp must be fitted to VLT 2803-281 5,
200-240 V, and VLT 2805-2815, 3 80-480 V.
■ Pre-fuses
For all unit types, external pre-fuses must be fitted in the
mains supply to the frequency converter. For UL/cU L
applications with a mains voltage of 200-240 Volt, use
pre-fuses type Bussmann KTN-R (200-240 Volt) or
Ferraz Shawm ut type ATMR (m ax. 30A). For UL/cUL
applications with a mains voltage of 380-480 Volt, use
pre-fuses type Bussmann KTS-R (380-480 Volt). See
Technical data for correct dimensioning of pre-fuses.
■ Mains connection
Please note that at 1 x 220-240 Volt the neutral wire
must be attached to terminal N
(L2)
and the phase
wire must be connected to terminal L1
(L1)
.
No. N
(L2)
L1
(L1) (L3)
Mains voltage 1 x 220-240 V
NL1
No. 95 Earth connect ion
No. N
(L2)
L1
(L1) (L3)
Ma ins voltage 3 x 220-240 V
L2 L1 L3
No. 95 Earth connection
No. 91 92 93 Ma ins voltage 3 x 380 -480 V
L1 L2 L3
No. 95 Earth connection
NB!:
Please check that the mains voltage fits the
mains voltage of the frequency conve rter, which
can be seen from the nameplate.
400-Volt units with RFI-filters may not be
connected to mains supp lies in which t he
voltage between phase and earth is more
than 300 Volts. Please note that for the IT mains
and t he delta ea rth the mains voltage can exceed
300 Volts between phase and earth. Units with type
code R5 can b e connected to mains supplies with
up to 400 V between p hase and earth.
See Technical data for correct dimensioning of
cable cross-section. See also the section entitle d
Galvanic isolation for further details.
■ Motor connection
Connect the motor to terminals 96, 97, 98.
Connect earth to terminal 99.
No. 96 97 98 Motor voltage 0-100% of
mains voltage.
UVW 3wiresofmotor
U1
W2
V1
U2
W1
V2
6 w ires out of motor, Delta
connected
U1 V1 W1 6 wires out of motor, Star
connected
U2, V2, W2 to be
interconnected separely
(optional terminal block)
No. PE Earth connection
See Technical data for correct dimensioning
of cable cross-section.
All types of three-phase asynchronous standard
motors can be connected to a frequency converter.
Normally, small motors are star-connected (230/400
V,
/ Y). Large motors are delta-connected (400/690
V,
/ Y). The correct connecti on mode and voltage
can be read from the motor nameplate.
NB!:
In motors without phase insulation paper,
an LC filter should be fitted on the output
of the frequency converter.
MG.28.E9.02 - VLT is a registered Danfoss trademark
50

Danfoss VT2800 Series Specifications

General

Brand	Danfoss
Model	VT2800 Series
Category	Controller
Language	English