Bedienungsleitung/Operating instructions
SKDA-...-AB
22 www.Festo.com
Änderungen vorbehalten – 2016/10
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:
Do not route the measuring cable parallel to high-voltage current
and control cables.
Avoid leakage fields from transformers, motors and contactors.
The sensor, the amplifier and the display unit must not have
multiple earths. Attach all equipment to the same protective
conductor.
In case of electric disturbances use a shielded, low-capacity
measuring cables.
The plug or cable connection assignments can be found on the name
plate. Unless otherwise agreed, the following assignments are used
as standard.
