Chapter 3: Installation expansion module. When daisy-chaining power, the power supply circuit must be limited to the lesser of 8 Amps or the ampacity of the cabling. This can be done with a circuit breaker or a fuse. The DC power can be applied to either the XDC1 or XDC2 connector. CAUTION: Use only one 24 VDC power supply per circuit. Failure to do this could result in damage to the equipment. CAUTION: The SmartVision MX vision controller has a higher cur- rent demand and should be wired independently. Do not daisy- chain its power from a SmartController EX motion controller. NOTE : The power switch on the SmartController EX motion controller will shut down just the controller.
The two connectors, XDC1 and XDC2, are always con- nected to each other, so a secondary device will maintain power after the controller is shut down. Chassis Grounding The SmartController EX motion controller is equipped with a grounding point, as shown in the following figure. We recommend connecting a ground wire from the grounding point on the controller to earth ground and that all other interconnected components share the same electrical ground potential. The ground wire must meet all local regulations. Additional grounding information for our other products is provided in the documentation for those products. NOTE : The maximum length for the ground wire for the controller is 3 meters.
The resistance of the ground conductor should be ≤10 Ω. Grounding Point Figure 3-8. Chassis Grounding Point The mounting of the controller and all terminations must be performed in accordance with local and national regulations. SmartController EX User’s Guide, 11069-000 Rev. F Page 21 of 92