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4.3 Mains Connection
NOTICE
At 1 x 220-240 V, 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
N
L1
No.
95
Ground connection
Table 4.1 Mains Connection for 1 x 220-240 V
No.
N
(L2)
L1
(L1)
(L3)
Mains voltage 3 x 220-240 V
L2
L1
L3
No.
95
Ground connection
Table 4.2 Mains Connection for 3 x 220-240 V
No.
91
92
93 Mains voltage 3 x 380-480 V
L1
L2
L3
No.
95
Ground connection
Table 4.3 Mains Connection for 3 x 380-480 V
NOTICE
Check that the mains voltage fits the mains voltage of
the frequency converter, which can be seen from the
nameplate.
CAUTION
400-V units with RFI-filters may not be connected to
mains supplies in which the voltage between phase and
ground is more than 300 V. For the IT mains and the
delta ground, the mains voltage can exceed 300 V
between phase and ground. Units with type code R5 (IT
mains) can be connected to mains supplies with up to
400 V between phase and ground.
See
chapter 7.2 General Specifications
for correct
dimensioning of cable cross-section. See also the section
Galvanic isolation
in the
VLT
®
2800 Design Guide
for further
details.
4.4 Motor Connection
Connect the motor to terminals 96, 97, 98. Connect ground
to terminal 99.
See
chapter 7.2 General Specifications
for correct
dimensioning of cable cross-section.
All types of 3-phase asynchronous standard motors can be
connected to a frequency converter. Normally, small
motors are star-connected (230/400 V,
Δ
/Y).
NOTICE
In motors without phase insulation paper, an LC filter
should be fitted on the output of the frequency
converter.
Illustration 4.7 Motor Connection
The factory setting is for clockwise rotation.
The direction of rotation can be changed by switching 2
phases on the motor terminals.
4.5 Parallel Connection of Motors
The frequency converter is able to control several motors
connected in parallel.
Consult the
Design Guide
for further information.
NOTICE
Ensure that the total cable length is appropriate. See the
chapter 4.10.1 EMC Emission
to learn about the
relationship between cable length and EMC emission.
NOTICE
Parameter
107 Automatic motor adaption, AMT
cannot be
used when motors are connected in parallel. Parameter
101 Torque characteristic
must be set to
Special motor
characteristics [8]
when motors are connected in parallel.
Electrical Installation
Quick Guide
12
Danfoss A/S © Rev. 2014-03-18 All rights reserved.
MG28M202
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