C-more micro EA1-S6MLW Uživatelský manuál stáhnout pdf (Strana 144)

Electrical Noise Problems

Most noise problems result from improper grounding of the system. A good earth ground can

be the single most effective way to correct noise problems. If a ground is not available, install a

ground rod as close to the system as possible. Ensure all ground wires are single point grounds

and are not daisy chained from one device to another. Ground metal enclosures around the

system. A loose wire can act as a large antenna, introducing noise into the system. Therefore,

tighten all connections in your system. Loose ground wires are more susceptible to noise than

the other wires in your system. Review Chapter 4: Installation & Wiring if you have questions

regarding how to ground the touch panel.

Electrical noise can enter the system through the power source for the touch panel. Installing a

properly wired isolation transformer (neutral grounded) for all AC sources can help the

problem, but only if wired correctly. DC sources should be well-grounded good quality

supplies.

Never run communication cables or low-voltage power wiring close to high voltage wiring or

pulse generating wiring that controls such devices as solenoids, servos, VFOs, etc.

Selecting a lower communication rate in Panel Manager may help the panel resist noise.

8–10

Chapter 8: Troubleshooting

EA1-MG6-USER-M Hardware User Manual, 1st Ed. Rev C, 09/10

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C-more micro EA1-S6MLW Uživatelský manuál Strana 144