Betriebsanleitung/Operating manual
F5301/F53C1/F53S1
32 BD_BE_907 b 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. Inter-
fering 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 multiple
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. 30-31). Unless otherwise agreed, the following as-
signments are used as standard.
Abbreviations for connection Abbreviations for colors
power supply + for Relay
(SIL-Shift)
power supply - for Relay
(SIL-Shift)
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