Watlow Electric Silver Series Guide d'installation télécharger pdf (Page 9)

9 Watlow Silver Series OIT Installation Guide

Figure 2b: Chassis Ground Connection – TS00-0100-EM00 (HMI5100L)

Power Supply Selection

The power supply used to power the OIT should provide an output of

+24 VDC ±20% measured at the OIT power terminal block. A 24VDC

regulated power supply dedicated to the OIT is recommended. Use a

power supply with adequate current rating based upon your particular

model (visit the Support Center Specifications page on our website).

A power line filter installed at the AC input to the OIT power supply is

highly recommended as a safeguard against conducted RF noise, which

is often present on factory power lines. The wires connecting the output

of the power line filter to the power supply should be kept as short as

possible to minimize any additional noise pickup. The case of the power

line filter should be connected to a quiet earth ground. The power line

filter should have a current rating of at least 3 Amps with common mode

and differential mode attenuation. In applications that may have high

frequency noise present, we also recommend using a resistor (~1 MΩ)

Metal area on

panel free of

paint

Stud or screw

Green (FG)

Black (--)

Red (+)

Control Panel

(connected to

earth ground)

Frame

ground

0600-0101-0000 Rev A

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Watlow Electric Silver Series Guide d'installation Page 9