OPERATION INSTRUCTIONS DANFOSS ENG

91
L1
92
L2
93
L3
96
U
97
V
98
W
88
DC-
89
DC+
81
R-
8
R+
130BA390.11
99
95
Figure 4.8 Motor, Line Power and Ground Wiring for Enclosure
Types B and C Using Shielded Cable
130BB477.10
91
L1
92
L2
93
L3
96
U
97
V
99
W
88
DC+
89
DC-
91
R-
9
R+
95
99
Figure 4.9 Motor, Line Power and Ground Wiring for Enclosure
Types B and C Using Conduit
4.7 AC Line Input Connection
•
Size wiring based upon the input current of the
adjustable frequency drive. For maximum wire
sizes, see chapter 8.1 Electrical Data.
•
Comply with local and national electrical codes
for cable sizes.
Procedure
1. Connect 3-phase AC input power wiring to
terminals L1, L2, and L3 (see Figure 4.10).
2. Depending on the configuration of the
equipment, input power will be connected to the
line power input terminals or the input
disconnect.
3. Ground the cable in accordance with grounding
instructions provided in chapter 4.3 Grounding.
4. When supplied from an isolated line power
source (IT line power or floating delta) or TT/TN-S
line power with a grounded leg (grounded delta),
ensure that 14-50 RFI 1 is set to OFF to avoid
damage to the intermediate circuit and to reduce
ground capacity currents in accordance with IEC
61800-3.
L 1
L 2
L 3
91
92
93
130BT336.10
Figure 4.10 Connecting to AC Line Power
Electrical Installation Instruction Manual
MG11AK22 Danfoss A/S © Rev. 11/06/2014 All rights reserved. 17
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