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1.3.6 Connecting to Line Power and
Compressor
The adjustable frequency drive is designed to operate
Danfoss VZH Compressors. For the maximum cross-section
on wires, see
chapter 1.7 General Specifications
.
•
Use a shielded/armored compressor cable to
comply with EMC emission specifications, and
connect this cable to both the decoupling plate
and the compressor metal.
•
Keep compressor cable as short as possible to
reduce the noise level and leakage currents.
•
For further details on mounting of the
decoupling plate, see
VLT
®
Compressor Drive CDS
803 Decoupling Plate Installation Instructions
.
•
Also see
EMC-compatible Installation in the
VLT
®
Compressor Drive CDS 803 Design Guide
.
1.
Mount the ground wires to ground terminal.
2.
Connect compressor to terminals U, V and W, see
Table 1.8
.
U
T1
V
T2
W
T3
Table 1.8 Connection of Compressor to Terminals
3.
Mount line power supply to terminals L1, L2 and
L3 and tighten.
130BB634.10
1
2
2
3
4
Motor
U V W
-DC+DC
MAINS
1 Line
2 Ground
3 Compressor
4 Relays
Figure 1.2 H3-H5 Frame
IP20 200–240 V 4–6.5 tons
IP20 380–480 V 4–6.5 tons
Quick Guide
Quick Guide
6
Danfoss A/S © Rev. 08/2014 All rights reserved.
MG18M122
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