Siemens ECOFAST, Руководство пользователя

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Wiring and interfaces
ECOFAST Motor Starters
3-8
GWA 4NEB 950 0562-12
3.3.2 Preparing power cables
Accessories
When you are preparing power cables you need a crimping tool (soldering is
possible as an alternative) and the accessories listed in the table.
Power cables with Han 10E
Table 3-2: Preparing connecting leads with Han 10E
Motor starter with brake contact / temperature sensor leads
The leads for the main power for the motor, the two leads for the brake and
the two leads for the temperature sensor are run to the motor starter via
common cables and connectors. If cables are pinched or crushed there is a
risk of voltage transfer.
To ensure safe separation between the 400 V AC main power and the 24 V
DC for the temperature sensor circuit in accordance with IEC 60947-1, the
insulation between the motor winding and the temperature sensor in the
motor must satisfy the requirements for safe separation.
The 400 V power supply for the motor and the 24 V DC power supply for the
brake are taken over common cables and plug connectors to the loads. If
the cables are pinched, there is a risk of voltage transfer.
That is why loads with degree of protection "Extra-low voltage" must not be
connected to the brake circuit.
As safeguard against "accidental voltage transfer", the supply voltage for the
brake must be taken from a separate power supply unit with safe electrical
isolation (PELV).
The brake must
not be fed from the power supply unit for the 24V auxiliary
circuit (AUX PWR, black cable).
For connecting the motor starter to the motor you need:
A flexible Cu cable
7 x 1.5 mm
2
/
4 mm
2
(6 windings)
11 x 1.5 mm
2
/
4 mm
2
(6 wi brake + temperature sensor)
Power connector
Han 10 E pin: 3RK1 911-...
If Han 10E available on motor:
Power connector
Han 10 E socket: 3RK1 911-...