Et system EAC/AFV, Руководство пользователя

Страница: 10 / 25

Functional Description
6 ET System electronic GmbH
S
TRUCTURE OF THE
M
AIN
C
ONTROL
U
NIT
The main control unit is divided into three modules: protection sampling, main control, display control.
D
ESCRIPTION OF CABLE CONNECTIONS
The following picture gives an overview about the cable connections of the main circuit:
Before installing the equipment, all switches need to be disconnected. The circuit cables must be connected according
to the diagram above.
C
ABLE
W
IRING
Use the voltmeter to confirm whether there is no voltage output in the distribution lines. Confirm whether all switches
of the variable frequency power supply are in the position “OFF”. The input and output cables can be selected according
to the cables recommended in the following tables.
Input distribution cables:
Input Current (A)
Input live wire (mm²)
Input zero line (mm²) Input ground wire (mm²)
A B C
70.8 A 25 mm² 25 mm² 25 mm² 16 mm² 16 mm²
Output distribution cables:
Output Current (A)
Output live wire (mm²)
Output zero line (mm²) Output ground wire (mm²)
U V W
LO: 83.3 A - HI: 41.7 A 25 mm² 25 mm² 25 mm² 25 mm² 16 mm²
The above recommended reference cables are multi-core flexible copper cables which can be selected by the user ac-
cording to the present input and output current situation. If the length of the input or output lines exceeds 20 meters,
it is recommended that the wire diameter of the cable should be doubled. Successively connect the input distribution
lines to the corresponding wiring terminals at the input and the output distribution lines to the corresponding wiring
terminals at the output.