Danfoss VLT Decentral Drive FCD 302 Design Manual page 61

System Integration
All types of 3-phase asynchronous standard motors can be
connected to the frequency converter. Normally, small
motors are star-connected (230/400 V, Y). Large motors are
normally delta-connected (400/690 V, Δ). Refer to the
motor nameplate for correct connection mode and
voltage.
For installation of mains and motor cables, refer to VLT
Decentral Drive FCD 302 Operating Guide.
Termi 96 97 98 99
nal
numb
er
U V W PE Motor voltage 0–100% of mains
1)
voltage.
3 wires out of motor.
U1 V1 W1 Delta-connected.
1)
PE
W2 U2 V2 6 wires out of motor.
U1 V1 W1 PE 1) Star-connected U2, V2, W2.
U2, V2, and W2 to be interconnected
separately.
Table 3.2 Motor Connection Terminals
1) Protective earth connection
1
7
Metric
1 Brake M20
2 8xM16
3 2xM20
4 Mains cables M25
5 M20
6 24 V M20
7 Motor M25
Illustration 3.8 Cable Entry Holes - Large Unit
MG04H302
Design Guide
®
2
6 2 2 3
6
NPT 1 for USA
1/2" NPT
8xM16
2xM20
3/4" NPT
M20
1/2" NPT
3/4" NPT
Danfoss A/S © 05/2018 All rights reserved.
Motor
U V W
2 2 2
U V W
1 1 1
FC
96 97 98
Illustration 3.7 Star - Delta Grounding Connections
NOTICE
In motors without phase insulation paper or other
insulation reinforcement suitable for operation with
voltage supply (such as a frequency converter), fit a sine-
wave filter on the output of the frequency converter.
®
The VLT Decentral Drive FCD 302 is also available as a real
NPT version in 2 different variants.
2 2 2 3
2 2
NPT 2 for USA
1/2" NPT
3/8" NPT (except ground plug, which is
M16)
1/2" NPT
3/4" NPT
1/2" NPT
1/2" NPT
3/4" NPT
Motor
U V W
2 2 2
V W
U
1 1
1
FC
96 97 98
4
4
5
59
3 3