Shielded Cables; Motor Cable - Danfoss VLT AQUA FC 202 Operating Instructions Manual

How to Install
Enclosure Terminal
types
F Mains
Motor
Load sharing
3 3 Brake
Regen
Table 3.20 Torque for Terminals

3.6.6 Shielded Cables

WARNING
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.

3.6.7 Motor Cable

The motor must be connected to terminals U/T1/96, V/
T2/97, W/T3/98. Earth to terminal 99. All types of 3-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.
96, 97, 98, 99
Table 3.21 Mains Terminals
54
VLT AQUA Drive FC 202 Operation Instructions
Torque [Nm] (in-lbs) Bolt size
19-40
M10
(168-354)
19-40
(168-354)
M10
8.5-20.5
M8
(75-181)
M8
8.5-20.5
(75-181)
Function
Mains U/T1, V/T2, W/T3
Earth
•
Terminal U/T1/96 connected
to U-phase
•
Terminal V/T2/97 connected
to V-phase
•
Terminal W/T3/98
connected to W-phase
Table 3.22
The direction of rotation can be changed by switching 2 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 enclosure requirements
F1/F3 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.
F2/F4 requirements: Motor phase cable quantities must be
multiples of 3, resulting in 3, 6, 9, or 12 (1 or 2 cables are
not allowed) to obtain equal amount of wires attached to
each inverter module terminal. The wires 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 m, and quantity of cables must be equal from each
inverter module to the common terminal in the junction
box.
NOTICE
If a retrofit application requires unequal amount of wires
per phase, consult the factory for requirements and
documentation or use the top/bottom entry side cabinet
option.
MG20P402 - Rev. 2013-12-16
Motor
U V W
2 2 2
U V W
1 1 1
FC
96 97 98
Motor
U V W
2 2 2
U V W
1 1 1
FC
96 97 98