Control panel grounding – Watlow Silver Series EM User Manual
Page 6
6
Watlow Silver Series OIT Installation Guide
Figure 1: Typical Panel Layout
1. Also HMI5121XL and HMI5150XL
2. Also HMI5043L and HMI5070NL
Control Panel Grounding
The control panel must be connected to a good, high-integrity earth
ground both for safety considerations and shielding purposes. Maple
Systems cannot overemphasize the importance of good grounding. If you
fail to use good grounding procedures during installation, sporadic
malfunction of the OIT may occur.
• Connect the OITs chassis ground terminal to a reliable earth
ground with a low-resistance path.
• Route all earth ground wires that lead from the OIT, the PLC, the
power supply, and the line filter to a central earth ground point
such as a barrier strip. This will ensure that no ground current
0600-0101-0000 Rev A
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