| Rotronic AG | |
Bassersdorf, Switzerland | ||
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HygroClip DI digital interface: instruction | Instruction Manual | |
manual |
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Document title | Page 22 of 24 | |
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14. Electrical Installation Guidelines
Power supply wiring
Heavy machinery and instrumentation should not share the same power supply wiring. If this cannot be avoided, noise filters and surge protectors should be used. Most UPS devices have those features already integrated.
General guidelines for signal cables
The following guidelines are derived from European Standard EN 50170 for the transmission of signals by copper wires. When planning an installation, the rules provided by EN 50170 should be followed under consideration of local circumstances to determine the position of machines and equipment.
All ROTRONIC HygroClip products are tested for Electromagnetic Compatibility according to following European standards:
-EN
-EN
Whenever the level of electromagnetic interference is expected to be high, both the instruments and signal cables should be placed as far away as possible from the source of interference.
In general, signal cables should be installed in bundles or channels / conduits, separate from other cables as indicated in the table below:
• Bus signals such as RS485 |
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• Data signals for PCs, printers etc. |
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• | Shielded analog inputs | in common bundles or channels / conduits |
• | Unshielded direct current (<= 60V) | |
• Shielded process signals (<= 25 V) |
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• | unshielded alternating current |
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| (<= 25V) |
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• Coaxial cables for CRT monitors |
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• | Direct current from 60 V to 400 V | in separated bundles or channels / |
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• | (unshielded) | conduits, without minimum distance |
Alternating current from 25V to 400 V | ||
| (unshielded) |
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• | Direct and alternating current > 400 V | in separated bundles or channels / |
| (unshielded) |
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• | Telephone lines | conduits, without minimum distance |
• Lines leading into |
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© 2007; Rotronic AG |
