Parker EY Series, Техническое руководство

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51 – Pvd3675_Gb_Ey_Septembre_2017
3.8. Power Electrical Connections
3.8.1. Wires sizes
In every country, you must respect all the local electrical installation
regulations and standards.
Not limiting example in France: NFC 15-100 or IEC 60364 as well in Europe.
Cable selection depends on the cable construction, so refer to the
cable technical documentation to choose wire sizes.
Some drives have cable limitations or recommendations; please refer
to the drive technical documentation for any further information.
Cable selection
At standstill, the current must be limited at 80% of the low speed
current I
o
and cable has to support peak current for a long period. So,
if the motor works at standstill, the current to select wire size is
√
2 x 0.8 Io
≅
1,13 x I
o
..
For the ATEX installations, you have to use special cables C2 type
auto-extinguish regarding the standard EN 50265-2-1.
It is mandatory to connect 2 (green-yellow) ground cables between the
motor frame and machine.
•
the first one is connected to the ground pin #2 of power connector,
•
the other one is connected to the external motor housing
The connecting of these two grounding devices is mandatory in order
to comply with ATEX standard IEC/EN 60079-0.
The ground cable cross-section must be the same as the power cable
cross-section