Installation
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20040438
4.13 Connection cable between the inverter and the electronic cam LMV 37 ...
Key
1
Motor cable power supply (coming from the inverter).
2
Connection cable between the inverter and the electronic
cam LMV 37 ... (coming from the inverter).
3
Single phase supply cable.
The connection from the Inverter to LMV37.... must be done as
shown in Fig. 21.
4.14 Inverter connection
Typical installation (Fig. 22)
Treatment of cables
Countermeasures against cable noise
The treatment of cables is the most important countermeasure.
The machinery manufacturers are requested
to examine the current structure of the cable lead - in.
Use cables with woven screen
The screen of the cable should be earthed with a large area.
It is desirable to earth the screen of the cable by clamping the
cable to the earth plate.
The screen must be earthed on both side of the cable (take
care for good earthing system).
Examples:
Number 1,2,3 show not proper ways to earth a cable screen.
WARNING
It is very importatnt to shield the motor cable 1) as
shown in Fig. 21.
WARNING
It is very importatnt to fix the cable shielding as
shown in Fig. 21.
1
2
3
Fig. 21
D11908
WARNING
Following, it is reported an example how to con-
nect the Inverter.
For further information, please refer to the relevant
Inverter instruction manual.
L1 L2/N
PE
3~
M
U
PE L1 L2
VWPE
PE
S8203
Ground bonds
Line
Load
FILTER
INVERTER
Cable length
as short as possible
METAL PLATE
(remove any paint)
Motor cable
screened
Ground bonds
(remove any paint)
Fig. 22
Fig. 23
Ground bonds (remove any paint)
Grounding plate
Ground clamp
S8201
Fig. 24
S8202