ICP DAS USA PET-7060, User Manual

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Appendix F: Frame Ground
PET-7000 DIO User Manual, May 2009, V1.00, EMH-013-10----------
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Appendix F: Frame Ground
Electronic circuits are constantly vulnerable to Electro-Static Discharge (ESD), which become
worse in a continental climate area. PET-7000 series modules feature a new design for the
frame ground, which provides a path for bypassing ESD, allowing enhanced static protection
(ESD) capability and ensures that the module is more reliable.
The following options will provide a better protection for the module:
The PET-7000 controller has a metallic board attached to the back of the plastic basket as
shown in the Figure F-1 below. When mounted to the DIN rail, connect the DIN rail to the earth
ground because the DIN rail is in contact with the upper frame ground as shown in the Figure F-
2 below.