SIMATIC MV500
Operating Instructions, 06/2018, C79000-G8976-C494-01
75
Connection
6
6.1
Guidelines for installation free of electrical interference
To prevent interference, you will need to provide shielding for your system. Low-frequency
(LF) and high-frequency (HF) interference signals can result in an incorrect response if the
system is badly grounded or not shielded.
Interfering signals can be caused by:
●
Switching relays or contactors (large, rapid changes in current or voltage and HF
interfering signals).
●
Different ground potentials between two parts of the system (LF interfering signals).
NOTICE
Grounding the device
Make sure that the device is grounded through one of the screw points in the housing.
Use/installation of interference-proof cables
●
Only use the recommended cable to connect the optical reader.
●
Use only shielded cables to power the optical readers.
●
Note that the maximum permitted cable length for the power supply is 30 m.
●
Do not lay signal lines and heavy current lines together. Use a separate cable duct at
least 50 cm from the heavy current lines.
Note
Observance of installation guidelines
Observe the information on installation guidelines in the installation manual "S7-300
Automation System, Hardware and Installation", "Wiring" section.
Please note the guidelines for use of PROFINET IO to control and/or transfer results.
●
Screw in all cable connectors correctly.
Содержание SIMATIC MV540 H
Страница 24: ...Description 1 7 Functional description SIMATIC MV500 24 Operating Instructions 06 2018 C79000 G8976 C494 01 ...
Страница 194: ...Service and maintenance 10 3 Replacing a module SIMATIC MV500 194 Operating Instructions 06 2018 C79000 G8976 C494 01 ...
Страница 232: ...Appendix A 3 Alternative user interfaces SIMATIC MV500 232 Operating Instructions 06 2018 C79000 G8976 C494 01 ...
Страница 236: ...List of abbreviations SIMATIC MV500 236 Operating Instructions 06 2018 C79000 G8976 C494 01 ...
Страница 238: ...Service Support SIMATIC MV500 238 Operating Instructions 06 2018 C79000 G8976 C494 01 ...