Frame size Terminal Torque Bolt size
D
Mains
Motor
19-40 Nm
(168-354 in-
lbs)
M10
Load sharing
Brake
8.5-20.5 Nm
(75-181 in-lbs)
M8
E
Mains
Motor
Load sharing
19-40 Nm
(168-354 in-
lbs)
M10
Brake 8.5-20.5 Nm
(75-181 in-lbs)
M8
F
Mains
Motor
19-40 Nm
(168-354 in-
lbs)
M10
Load sharing
Brake
Regen
19-40 Nm
(168-354 in-
lbs)
8.5-20.5 Nm
(75-181 in-lbs)
8.5-20.5 Nm
(75-181 in-lbs)
M10
M8
M8
Table 4.25 Torque for terminals
4.6.6
Shielded Cables
NOTE
Danfoss recommends to use shielded cables between the
LCL filter and the AFE unit. Unshielded cables can be
between transformer and LCL filter input side.
It is important that shielded and armoured cables are
connected in a proper way to ensure the high EMC
immunity and low emissions.
The connection can be made using either cable glands or
clamps:
•
EMC cable glands: Generally available cable
glands can be used to ensure an optimum EMC
connection.
•
EMC cable clamp: Clamps allowing easy
connection are supplied with the frequency
converter.
4.6.7
Motor Cable
The motor must be connected to terminals U/T1/96, V/
T2/97, W/T3/98 located on the far right of the unit. Earth
to terminal 99. All types of three-phase asynchronous
standard motors can be used with a frequency converter
unit. The factory setting is for clockwise rotation with the
frequency converter output connected as follows:
Terminal No.
Function
96, 97, 98, 99 Mains U/T1, V/T2, W/T3
Earth
Table 4.26
•
Terminal U/T1/96 connected to U-phase
•
Terminal V/T2/97 connected to V-phase
•
Terminal W/T3/98 connected to W-phase
96 97
U V
96 97 98
U V W
98
W
130HA036.10
Illustration 4.30
NOTE
The direction of rotation can be changed by switching two
phases in the motor cable or by changing the setting of
4-10 Motor Speed Direction.
Motor rotation check can be performed using 1-28 Motor
Rotation Check and following the steps shown in the
display.
F frame Requirements
Motor phase cable quantities must be multiples of 2,
resulting in 2, 4, 6, or 8 (1 cable is not allowed) to obtain
equal amount of wires attached to both inverter module
terminals. The cables are required to be equal length
within 10% between the inverter module terminals and the
first common point of a phase. The recommended
common point is the motor terminals.
Output junction box requirements: The length, minimum
2.5 meters, and quantity of cables must be equal from
each inverter module to the common terminal in the
junction box.
How to Install VLT Automation Low Harmonic Drive Operating Instructions
MG34O202 - VLT
®
is a registered Danfoss trademark 45
4 4
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