Leroy-Somer CPLS 112, Руководство по установке и обслуживанию

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13
INSTALLATION AND MAINTENANCE
CPLS drip-proof 3-phase induction motors
4240 en - 2014.09 / b
LEROY-SOMER
Terminal block wiring diagram
The motors are fitted with a block of 6 terminals complying with
standard NFC 51 120, with the terminal markings complying
with EN 60034-8 (or NFC 51 118).
Direction of rotation
When the motor is powered by U1, V1, W1 or 1U, 1V, 1W from
a direct mains supply L1, L2, L3, it turns clockwise when seen
from the drive end.
If any two of the phases are changed over, the motor will run in
an anti-clockwise direction.
If the motor is fitted with accessories (thermal protection and/or
space heater), these should be connected on screw dominos
or terminal blocks with labelled wires (see section 2.4).
Sensor
Earth terminal
In the terminal box:
- Frame size ≤132 mm
This consists of a pin inside the terminal box.
- Frame size ≥160 mm
This is situated on a boss inside the terminal box.
It is indicated by the symbol:
On the end shield at the terminal box end:
This consists of a tapped hole on the end shield, marked with
a label.
The motor must be earthed, and conform to
current regulations (protection of people).
Mains connection
The cables must be fitted with connectors suitable for the cable
cross-section and the terminal diameter.
They must be crimped in accordance with the connector
supplier's instructions.
Connection must be carried out with connector resting on
connector (see diagrams below):
Tightening torque (Nm) on the terminal block nuts:
Terminal M6 M8 M10 M12 M14 M16
Steel 5 10 20 35 50 70
When closing the box, ensure that the seal is correctly
positioned.
As a general rule, check that no nut, washer or
other foreign body has fallen into or come into
contact with the winding.
2.7 - Commissioning
The motor is designed to operate at the speeds indicated on
the nameplate:
- Do not exceed the maximum mechanical speed on the motor
nameplate.
- Comply with the voltage and frequency indicated on the
nameplate. Do not deviate by more than ±5% from the voltage
extremes on the nameplate and by more than ±1% from the
frequencies.