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Installation
2-4 Manual # 42-02-2P24
Electrical Noise
Electrical noise readily occurs when two wires run along side one another with one of them a
high power conductor and the other a low signal level conductor. The easiest way to avoid noise
problems is to keep low-level wiring in separate conduit from high power wiring. If high and
low power wiring must be run in the same duct, separate them by a minimum of three to four
inches. If one must cross the other, it should be at a ninety degree angle.
Alternately, low level wiring may use shielded cable. The shield drains induced voltage to
ground. The shield must be connected to ground at one end only.
EMI/RFI
To avoid EMI/RFI interference:
• Keep motor leads as short as possible. Run them in a separate conduit.
• Run main line supply leads to the controller or isolation transformer in a separate conduit.
• Run leads from the isolation transformer to the drive cabinet in a separate conduit.
• The controller door will protect against interference only when closed.
Recommended Tools and Test Equipment
Recommended tools and test equipment:
• Digital multimeter, Fluke series 75, 76, 77 or equivalent
• Hand-held tachometer
• Clamp-on AC ammeter
• Hand-held radios
• Test weights
Содержание Motion 4000
Страница 20: ...xiv Manual 42 02 2P24 5 20 13 ...
Страница 38: ...Motion 4000 Traction Elevator Control 1 18 Manual 42 02 2P24 ...
Страница 178: ...Final Adjustments 3 56 Manual 42 02 2P24 ...
Страница 322: ...User Interface 4 144 Manual 42 02 2P24 ...
Страница 391: ...PC Board Quick References 5 69 5 Motion 4000 Figure 5 11 Example MC CPI Wiring ...
Страница 439: ...Customer Notations A 27 A Motion 4000 Customer Notations Table A 4 Customer Notation Area ...
Страница 444: ...Appendix A 32 Manual 42 02 2P24 ...