Electrostatic Discharge Awareness

All electronic equipment is static-sensitive, some components more than

others. To protect these components from static damage, you must take

special precautions to minimize or eliminate electrostatic discharges.

Follow these precautions when working with or near the control.

1.) Before doing maintenance on the electronic control, discharge the

static electricity on your body to ground by touching and holding a

grounded metal object (pipes, cabinets, equipment, etc.).

2.) Avoid the build-up of static electricity on your body by not wearing

clothing made of synthetic materials.

Wear cotton or cotton-blend materials as much as possible because these

do not store static electric charges as easily as synthetics.

3.) Keep plastic, vinyl, and Styrofoam materials (such as plastic or

Styrofoam cups, cigarette packages, cello phane wrappers, vinyl books or 

folders, plastic bottles, etc.) away from the control, modules, and work

area as much as possible.

4.) Opening the control cover may void the unit warranty.

Do not remove the printed circuit board (PCB) from the control cabinet

unless absolutely necessary. If you must remove the PCB from the control

cabinet, follow these precautions:

• Ensure that the device is completely voltage-free (all connectors have to

be disconnected).

• Do not touch any part of the PCB except the edges.

• Do not touch the electrical conductors, connectors, or components with

conductive devices or with bare hands.

• When replacing a PCB, keep the new PCB in the plastic antistatic protective

bag it comes in until you are ready to install it. Immediately after removing

the old PCB from the control cabinet, place it in the antistatic protective bag.