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2 - Electrical connections
PRECAUTIONS
B
Despite the fact that the instrument
has been designed to work in an
harsh and noisy environmental
(level IV of the industrial standard
IEC 801-4), it is strongly recom-
mended to follow the following
suggestions.
A
All the wiring must comply with the
local regulations.
The supply wiring should be rout-
ed away from the power cables.
Avoid to use electromagnetic con-
tactors, power relays and high
power motors nearby.
Avoid power units nearby, espe-
cially if controlled in phase angle
Keep the low level sensor input
wires away from the power lines
and the output cables.
If this is not achievable, use shield-
ed cables on the sensor input, with
the shield connected to earth.
2.2 RECOMMENDED ROUTING OF WIRES
B
123456
789101112
LN IN
Conduit for supply and output cables
Conduit for low level sensor cables
AB
DEC
123456
789101112
LN IN
AB
DEC
A = Supply
B = Outputs
C = Analog inputs
D = Analogue output
Serial communications
E = SSR drive output