3 Installation
3.6 Electrical Installation
78
DC1-S…20…, DC1-S…OE1 Variable Frequency Drives
05/21 MN040058EN
www.eaton.com
The control cables should be screened and twisted for the external
connection. The screening is applied on one side in the proximity of the
variable frequency drive (PES).
Figure 51: 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
problems with an interference loop.
Figure 52: Connection example with four digital inputs
a
Depends on the application
15 mm
(0.59’
’)
PES
Start
①
AI1
(DI4)
DI2
DI3
DI1
6
4
3
2
1
X1
+24 V, < 100 mA
AO1
(DO1)
7
5
9
8
CPU
4
①
①
Summary of Contents for DC1-S1011NB-A20CE1 1
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