9. Electric Connection
HELENOS III
21
9. Electric Connection
9.1. Connection of Shielding
To avoid elektromagnetic influences it is necessary to connect cable shields at both ends.
This includes shielding from control housing to sensors, from control housing to
potentiometers, from control housing to actuator and from control housing to accessory
units. If there is a potential difference between the control housing and any of these other
componets, to avoid currents via the shielding it is necessary to run a separate wire from
the control housing to each of these components.
HEINZ
MA
NN
Seria
l No
.:
for
Basi
c S
ystem
E
Rang
e
Vol
tag
e
GmbH
+ C
o.
Am
Has
elbac
h 1
D -
79677
Schö
nau (S
chw
arzw
ald)
Ger
many
Phone:
(0
76 73) 82
0 8
- 0
Tel
efax
:
(0
76 73) 82
0 8
- 88
sensor
control unit
seperate wire
Fig. 13: Connection of Seperat Wire
At cable ends without plugs (e.g. terminal strip or pins) the shielding must be connected at
the housing near the contacts.
potentiometer
shielding
shrink sleeve
Fig. 14: Shield Connection without Plug
