Emotron EMX-D, Инструкция по эксплуатации

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10 Installation Emotron AB 01-5016-01r0
3.4 Cable connections
3.4.1 Mains cables
Dimension the mains cables according to local regulations.
The cable must be able to carry the load current.
• To fulfil EMC purposes it is not necessary to use
screened mains cables.
• Use heat-resistant cables, +60

C or higher.
• Dimension the cables and fuses in accordance with local
regulations and the nominal current of the motor. See
chapter 9. Page 39.
• The variable speed drives have an unpainted back side
and is therefore suitable for mounting on an unpainted
mounting plate.
Connect the mains cables according to Fig. 7 and Table 3.
Fig. 7 Mains, motor and PTC connections to Control unit.
3.4.2 Motor cables
The following two cables must be connected between the
motor unit and the control system.
• Motor cable: 4-core, 1.5 mm
2
screened.
• PTC cable: 2-core screened, min. 0.75 mm
2
.
If cables are lengthened, ensure that the screening is spliced
carefully
.
An external fuse must always be provided. 10 AT.
A safety isolation switch should be installed between the
power supply and the control unit. Note that
when the
power supply is isolated, an alarm will be triggered indicat-
ing a loss of power.
12 13 14 15 16 17 18 19 20 21 22
11 10 9 8 7 6 5 4 3 2 1 31 32 33
41 42 43
52 53
L N
U V W
7879
PE
Screen connection
of motor cables
Motor cables connection
Mains connection
PTC connection
Table 3 Mains and motor connection
L,N
PE Mains supply, 1 -phase
Safety earth (protected earth)
U, V, W
Motor earth
Motor output, 3-phase
WARNING! Residual voltage remains in the
system for 5 minutes after disconnection of
mains voltage.
WARNING! Do not install a switch between the
motor and the control unit.