Wavetronix SmartSensor Advance Extended Range (SS-200E) - Use Manuale Utente Scaricare il pdf (Pagina 32)

CHAPTER 2  CONNECTING POWER AND SURGE PROTECTION 31

Follow the steps below to provide a low impedance protective earth connection:

1 Connect one end of a protective earth ground wire to the bottom of the PE terminal

block. A 10 AWG stranded wire is recommended for protective earth ground connec-

tions and is also the largest that will t in the terminal block.

2 Connect the other end of the protective earth ground wire to a protective earth screw

terminal within the main trac cabinet.

Controlling DC Power Distribution

e Click 210 circuit breakers provide a convenient way to turn power on or o for each

sensor independently (see Figure 2.4). To enable or disable DC power to the backplate,

press the main circuit breaker (le side of upper DIN rail); to enable or disable DC power

to an individual sensor, press the individual circuit breaker (le side of each sensor’s set of

terminal blocks).

Push this button to

turn power on or o.

Figure 2.4 – DC Power Distribution

Note

The switch is ON when the switch button is level with the device housing; the switch

is OFF when the switch button is raised above the housing.

e four-approach preassembled backplate has 24 VDC power wired from the output of

the AC to DC convertor into a 5-position screw terminal on the le side of the T-bus (see

Figure 2.5). e green T-bus conducts DC power and RS-485 communications from the le

to the right side of the modules; the gray T-bus conducts only DC power from the le to the

right side of the modules.

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Wavetronix SmartSensor Advance Extended Range (SS-200E) - Use Manuale Utente Pagina 32