Field Wiring Guidelines; Avoiding Noise - Siemens SIMATIC TI505 User Manual

2.2

Field Wiring Guidelines

! WARNING
ATTENTION
!

Avoiding Noise

To minimize the potential risk of injury to personnel or damage to
the system, use supply wires suitable for at least 75 C. Signal
wiring connected to this module must be rated at least 300 V.
Employer des fils d'alimentation pour au moins 75 C. Le cablage de
signalisation raccorde dans cette boite doit convenir pour une
tension nominale d'au moins 300 V.
To avoid noise problems, follow these guidelines when you install the
module.
Use the shortest possible wires.
Avoid placing signal wires parallel to high-energy wires. If the two must
meet, cross them at right angles.
Avoid bending the wire into sharp angles.
Use wireways for wire routing.
When you use shielded wires, ground them only at the source end for
better noise immunity.
Place wires so that they do not interfere with existing wiring.
Installing the Module 2-3