
3 Installation
3.5 Electrical installation
DB1 variable frequency drive
11/20 MN040031EN
Eaton.com
71
Figure 40: Screen termination at one end (PES) close to the variable frequency drive
Alternatively, in addition to the broad area gland plate, you can twist the
screen braid at the end and connect to the protective earth with a cable lug.
To prevent EMC disturbance, this twisted shielding connection should be
made as short as possible.
Prevent the screen from becoming unbraided at the other end of the control
cable, e.g. by using a rubber grommet. The screen braid must not make any
connection with the protective ground here because this would cause prob-
lems with an interference loop.
We recommend connecting the loads connected to the relay contact as
follows:
Figure 41: Connection examples with suppressor circuit
250 V
∼
:
≦
6 A
30 V
⎓
:
≦
5 A
15 mm
(0.59’
’)
PES
RUN
K1
I
AC
DC
AC
Varistor
(+)
(-)
DC
Diode
AC
RC filter