General precautions
WARNING
Avertissement
Important: Use copper conductors only. Make all wiring in accordance with local,
national, and regional regulations. Do not exceed the FX90 Supervisory Controller’s
electrical ratings.
Important: Remove all power to the controller before you attach and plug in or detach
and unplug any option card module, to prevent possible equipment damage.
Static Discharge Precautions
Static charges produce voltages high enough to damage electronic components. The microprocessors and associated circuitry within the devices are sensitive to static discharge.
Note: Removal of the cover is not required. The controller contains no configurable or
user-serviceable items, such as jumpers.