Electrical Isolation - Lenze 8400 Hardware Manual

6.1.1

Electrical isolation

The protective insulation of the "8400 Inverter Drives" controllers is implemented
according to EN 61800-5-1. The following illustration shows the insulation concept.
E84AV
X100 X100
X100 X101

X105 X105
X106 X106
Fig. 6-1

Note!
Ensure trouble-free operation
Execute the wiring in such a way that the potential islands remain separated.

Note!
If the terminal X106 is used, e.g. to connect an external PTC thermistor or a
thermal contact, ensure at least one basic insulation to the motor or mains
potential to not restrict the protective separation of the control terminals.

Note!
If terminal X107 is used for connecting a motor holding brake, at least one
basic insulation to the motor or mains potential has to be provided, so that the
protective separation of the control terminals is not limited.
Legend
I
II
EDS84ASC552 EN 10.0
SC ...
MCI
Ext.
DC
MMI
X6 X6
X3
‚
X4
X105 X105
X1 X1
Electrical isolation between power terminals, control terminals and housing
Isolation by functional insulation
Isolation by basic insulation
Safe isolation by double or reinforced insulation
Protection against accidental contact is guaranteed without any further measures.

Electrical installation
Electrical isolation
E84AV HC ...
MCI
X100 X100
Ext.
DC
X101 X100
MMI
X6 X6
X3
 ‚
X4 X5
X107 X100
X1 X1
X106 X106
Important notes
E84AV TC ...
MCI
X100 X100
Ext.
X10
DC
X100 X101
MMI
X6 X6
X3
X7 X8
 ‚
X4 X5
X105 X105
X107 X100
X1 X1
X106 X106
8400SLC005
6
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