Tightening-Up Torque And Screw Sizes; Mains Connection; Pre-Fuses; Motor Connection - Danfoss VLT 6000 HVAC Manual

Tightening-up torque and screw sizes

The table shows the torque required when fitting
terminals to the VLT frequency converter. For VLT
6002-6032, 200 -240 V, VLT 6002-6062, 380-460 V
the cables must be fastened with screws. For VLT
6042-6062, 200-240 V and for VLT 6075-6275 the
cables must be fastened with bolts.
These figures apply to the following terminals:
Mains terminals
Motor terminals
Earth terminal
VLT type Tightening-up
3 x 200-240 V torque
VLT 6002-6005 0.5 - 0.6 Nm
VLT 6006-6011 1.8 Nm
VLT 6016-6027 3.0 Nm
VLT 6032 4.0 Nm
VLT type Tightening-up
3 x 200-240 V torque
VLT 6042-6062 11.3 Nm
VLT type Tightening-up
3 x 380-460 V torque
VLT 6002-6011 0.5 - 0.6 Nm
VLT 6016-6027 1.8 Nm
VLT 6032-6062 3.0 Nm
VLT type Tightening-up
3 x 380-460 V torque
VLT 6075-6125 11.3 Nm
VLT 6150-6275 11.3 Nm

Mains connection

Mains must be connected to terminals 91, 92, 93.
Mains voltage 3 x 200-240 V
Nos. 91, 92, 93
Mains voltage 3 x 380-460 V
L1, L2, L3
NB!
Check that the mains voltage fits the mains
voltage of the VLT frequency converter, which
can be seen from the nameplate.
See Technical data for correct sizing of cable cross-
sections.
62
Nos. 91, 92, 93
L1, L2, L3
Nos. 96, 97, 98
U, V, W
No. 99
Screw
size
M3
M4
M5
M6
Bolt
size
M8
Screw
size
M3
M4
M5
Bolt
size
M8
M8
®
VLT 6000 HVAC

Pre-fuses

For VLT type 6002-6275, external pre-fuses must be
installed in the mains supply to the frequency
converter. For UL/cUL applications with a mains
voltage of 200-240 V, pre-fuses of type Bussmann
KTN-R (200-240 V) or similar must be used. For UL/
cUL applications with a mains voltage of 380-460 V,
pre-fuses of type Bussmann KTS-R (380-460 V) or
similar must be used.
For VLT type 6060-6275 HVAC, 380/460 V and VLT
6032-6052, 200-240 V, pre-fuses are included in the
frequency converter mains connection; however,
external pre-fuses must also be fitted.
See Technical data for correct sizing of pre-fuses.

Motor connection

The motor must be connected to terminals 96, 97,
98. Earth to terminal 99.
Motor voltage 0-100% of
Nos. 96, 97, 98
netspænding. mains voltage.
U, V, W
Earth connection.
No. 99
See Technical data for correct sizing of cable cross-
sections.
All types of three-phase asynchronous standard
motors can be used with a VLT 6000 HVAC 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 VLT frequency
converter output. See the Design Guide or contact
Danfoss.
MG.60.B1.02 - VLT is a registered Danfoss trade mark