Wavetronix SmartSensor Matrix (SS-225) - User Guide Manuel d'utilisateur télécharger pdf (Page 107)

106 APPENDIX

Warning

Make sure power to AC mains is disconnected while wiring the AC input. If your in-

stallation does not require AC power, you will need to use surplus DC power inside

the trac cabinet. In this case, Wavetronix recommends you use the Click 221 (8 A

DC surge protector) to protect the backplate and SmartSensor Matrix units from DC

surges. See Appendix C for information regarding the Click 221.

Figure D.2 – Connecting AC Power to the Preassembled Backplate

Use the following steps to connect power to the AC terminal block on the bottom DIN rail

(see Figure D.2):

1 Connect a neutral wire (usually a white wire) to the bottom side of the terminal block

labeled “N” for neutral.

2 Connect a ground wire (usually a green wire) to the bottom of the terminal block la-

beled “G” for ground. (see the Wiring Protective Earth Ground section below).

3 Connect a line wire (usually a black wire) to the bottom of the terminal block labeled

“L” for line.

4 Turn on AC mains power.

5 Press the circuit breaker switch on the le side of the top DIN rail to switch power to

the backplate. e switch is on if the button is below the level of the device housing; the

switch is o if the button is raised above the surface of the housing.

6 Verify that DC power is properly regulated by making sure the DC OK LEDs are il-

luminated on the Click 201/202/204.

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Wavetronix SmartSensor Matrix (SS-225) - User Guide Manuel d'utilisateur Page 107