Tecsis F5308, Руководство по эксплуатации

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Betriebsanleitung/Operating manual
F5308/F53C8/F53S8
36 BD_BE 991 d www.tecsis.de
7
Electrical connection
Electrical and magnetic fields often generate interfering voltage in the
measuring circuit. This interference essentially emanates from high
voltage current running parallel to the measuring lines, but can also
be caused by contactors or electric motors operating in the
vicinity. Interfering voltage can also be introduced galvanically. This
particularly occurs in cases where the measuring chain is earthed at
various points that do not have the same potential.
To avoid the coupling in of interference, please note the following:
•
Always use shielded, low-capacity measuring cables (all tecsis
cables meet these requirements).
•
The shielded measuring cable should be grounded on both sides.
•
Do not route the measuring cable parallel to high-voltage current
and control cables.
•
Avoid leakage fields from transformers, motors and contactors.
•
The load pin, the amplifier and the display unit must not have multi-
ple earths. Attach all equipment to the same protective conductor.
The plug or cable connection assignments can be found on the name
plate (Fig. 1 to 3, p. 33-34). Unless otherwise agreed, the
following assignments are used as standard.
Abbreviations for connection Abbreviations for colors
UB+ power BN brown
0V/UB- power supply - WH white
UR+ power for Relay
(SIL-Shift)
BU blue
UR- power supply - for Relay
(SIL-Shift)
BK black