Danfoss VLT FC 300 Operating Instructions

3.3.7 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.
3.3.8
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 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
•
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
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
F8/F9 requirements: 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.
F10/F11 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.
F12/F13 requirements: Motor phase cable quantities must
be multiples of 3, resulting in 3, 6, 9, or 12 (1, 2, or 3
cables are not allowed) to obtain an 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.
How to Install
VLT
®
Automation Drive FC 300 12-Pulse
Operating Instructions High Power
MG34Q202 - VLT
®
is a registered Danfoss trademark 39
3
3

Danfoss VLT FC 300 Specifications

General

Brand	Danfoss
Model	VLT FC 300
Category	DC Drives
Language	English