Electrical Installation And Control Cables - Danfoss vlt AQUA Instruction Manual
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Also See for vlt AQUA:
- Programming manual (298 pages) ,
- Design manual (228 pages) ,
- Instruction (206 pages)
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®
VLT
AQUA Drive
Instruction Manual
5.1.27 Electrical Installation and Control Cables
Figure 5.45: Diagram showing all electrical terminals. (Terminal 37 present for units with safe stop function only.)
Very long control cables and analog signals may, in rare cases and depending on the installation, result in 50/60 Hz ground loops due to noise from line
power supply cables.
If this occurs, break the shield or insert a 100 nF capacitor between shield and chassis.
NOTE!
The common of digital / analog inputs and outputs should be connected to separate common terminals 20, 39, and 55. This will prevent
ground current interference among groups. For example, it prevents switching on digital inputs from disturbing analog inputs.
NOTE!
Control cables must be shielded/armored.
®
MG.20.M5.22 - VLT
is a registered Danfoss trademark
5 Electrical installation
5
5-25
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