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Installation
3.4.4 Motor Cable
The motor must be connected to terminals U/T1/96, V/
T2/97, W/T3/98. Earth (ground) to terminal 99. The factory
setting is for clockwise rotation with the frequency
converter output connected as follows:
Terminal number
Function
96, 97, 98,
Mains U/T1, V/T2, W/T3
99
Earth (ground)
Table 3.4 Terminals for Motor Cable Connection
3.4.5 Motor Rotation Check
The direction of rotation can be changed by switching 2
phases in the motor cable.
•
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 3.5 Wiring for Changing Motor Direction
3.4.6 AC Mains Connection
•
All frequency converters may be used with an
isolated input source as well as with ground
reference power lines. When supplied from an
isolated mains source (IT mains or floating delta)
or TT/TN-S mains with a grounded leg (grounded
delta), set 14-50 RFI Filter to [0] Off. When off, the
internal RFI filter capacitors between the chassis
and the intermediate circuit are isolated. Isolating
the capacitors prevents damage to the
intermediate circuit and reduces ground capacity
currents in accordance with IEC 61800-3.
•
Size wiring is based upon the input current of the
frequency converter.
•
Comply with local and national electrical codes
for cable sizes.
MG35Q202
Installation Guide
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
Danfoss A/S © 01/2015 All rights reserved.
1.
Ground the cable in accordance with the
instructions provided.
2.
Connect 3-phase AC input power wiring to
terminals L1, L2, and L3 (see Illustration 3.7).
1
1
Mains connection
2
Motor connection
Illustration 3.7 Connecting to AC Mains
3.4.7 DC-Link Connection
Two field terminals are provided for connecting to the DC-
Link. The terminals are marked "+REGEN82" and "-
REGEN83".
WARNING
REGEN TERMINALS
Frequency converters contain high voltage The REGEN
terminals must be connected to the correct polarity and
properly insulated from ground. Qualified personnel only
should perform installation, start up, and maintenance.
Failure to perform installation, start up, and maintenance
by qualified personnel could result in death or serious
injury.
3
3
2
13
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