Moeller Rapid Link, Switching And Installation System, Page: 103 / 162

01/08 AWB2190-1430GB
Installation
99
Motor connection
On the RA-SP the motor feeder features a metal-encapsulated
socket. To meet EMC requirements, this is connected with PE and
heat sink over a large area. The matching plug is also metal-
encapsulated and the motor cable is screened. The length of the
motor cable is limited,
a
table 19 on page 87. The motor cable’s
screen must have a large-area connection with PE at both ends
and the motor connection terminals must also, therefore, meet
EMC requirements.
The motor is connected through motor cable SET-M4/…HF or
through connector SET-M4-A, contacts 4
x
1.5 mm
2
+ 2
x
(2
x
0.75) mm
2
.
Pin assignment to DESINA specification a page 24.
The speed of a three-phase motor is determined by the ratio of
pole pairs to frequency.
Pole-changing three-phase motors (Dahlander pole-changing
motors), rotor-fed three-phase commutator shunt motors (slipring
rotor) or reluctance motors, synchronous motors and servo motors
can be connected, provided they are approved for use with
frequency inverters by the motor manufacturer.
Figure 104: Pin assignment at motor output socket (DESINA)
i
Caution!
The operation of a motor at speeds higher than the rated
speed (see nameplate) can cause mechanical damage to
the motor (bearings, unbalance) and the machinery to
which it is connected and can lead to dangerous
operating conditions!
h Caution!
Uninterrupted operation in the lower frequency range
(less than about 25 Hz) can lead to thermal damage
(overheating) of self-ventilated motors. Possible remedies
include over-dimensioning and external cooling
independent of motor speed.
Observe the manufacturers recommendations for
operation of the motor.
1 4 6
3 5 8
PE 7
Pins of the
motor
outgoer plug Core No.
Motor cable Function on motor
1 1 U1
2 – Coding adapter
3 3 W 1
4 5 Brake B1 h
5 7 Thermistor 1
6 6 Brake B2 230 V h /400 V h
7 2 V1
8 8 Thermistor 2
PE PE PE