Watlow Electric Silver Series Instalační příručka stáhnout pdf (Strana 5)

5 Watlow Silver Series OIT Installation Guide

Control Panel Design Guidelines

Pay careful attention to the placement of system components and

associated cable routing. These items can significantly enhance the

performance and integrity of your control application.

Figure 1: Typical Panel Layout

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

from one device influences the operation of the other devices.

- Connect the OIT chassis ground terminal to the control panel

door using a heavy-gauge short braided cable or ground wire to

minimize resistance.

- Connect the power cable’s shield wire to the OIT’s chassis

ground terminal.

0600-0069-0000 Rev B

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Watlow Electric Silver Series Instalační příručka Strana 5