3.3.13 Safety Ground Connection
The frequency converter has a high leakage current and must be grounded appropriately for safety reasons according to EN
50178. The ground leakage current from the frequency converter exceeds 3.5 mA. To ensure a good mechanical connection
from the ground cable to the ground connection (terminal 95), the cable cross-section must be at least 10 mm
2
or 2 rated
ground wires terminated separately.
3.3.14 Basic Examples of Control Connections
Controls using an external controller with 0-10 V signal. It is not necessary to change any parameters, as this is the default
value.
Figure 3.28 Example of External Controller with 0-10 V Signal
Controls using an external controller with 4-20 mA signal. Change switch 53 from U to I. It is not necessary to change any
parameters, as this is the default value.
Figure 3.29 Example of External Controller with 4-20 mA Signal
How to Install
VLT
®
Compressor Drives CDS 302/CDS 303
28 Danfoss A/S © Rev. 2013-07-03 All rights reserved. MG34M422
33
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