5.1.2 Earthing and IT Mains
The earth connection cable cross section must be at least 10 mm
2
or 2 rated mains wires terminated separately according to
EN 50178
or IEC 61800-5-1
unless national regulations specify differently. Always comply with national and local regulations. on cable cross-
sections.
The mains is connected to the main disconnect switch if this is included.
NB!
Check that mains voltage corresponds to the mains voltage of the frequency converter name plate.
Illustration 5.1: Terminals for mains and earthing.
IT Mains
Do not connect 400 V frequency converters with RFI-filters to mains supplies with a voltage between phase and earth of more than
440 V.
For IT mains and delta earth (grounded leg), mains voltage may exceed 440 V between phase and earth.
5 Electrical Installation
Automation VT Drive FC322
Instruction Manual
22
MG.20.U1.22
5
Содержание FC322 Series
Страница 6: ...2 Safety Automation VT Drive FC322 Instruction Manual 6 MG 20 U1 22 2 ...
Страница 14: ...4 Mechanical Installation Automation VT Drive FC322 Instruction Manual 14 MG 20 U1 22 4 ...
Страница 103: ...Automation VT Drive FC322 Instruction Manual 8 How to Programme the Frequency Converter MG 20 U1 22 103 8 ...
Страница 154: ...9 Troubleshooting Automation VT Drive FC322 Instruction Manual 154 MG 20 U1 22 9 ...
Страница 163: ...10 Specifications Automation VT Drive FC322 Instruction Manual 10 Specifications MG 20 U1 22 163 10 ...