US 12,230,955 B2
Industrial systems with integrated absence of voltage tester (AVT) and positive load indication (PLI) apparatus
Roberto Sampaio Marques, Mequon, WI (US); Philip M. Hamilton, Bettendorf, IA (US); Troy Micheal Bellows, East Helena, MT (US); Todd Richard Sauve, Oak Creek, WI (US); Kurt R. Mickler, Waukesha, WI (US); and Robert Stafford Dilgard, Shorewood, WI (US)
Assigned to Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed by Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed on Sep. 20, 2022, as Appl. No. 17/948,705.
Prior Publication US 2024/0097432 A1, Mar. 21, 2024
Int. Cl. H02H 7/20 (2006.01); G01R 19/155 (2006.01); H02H 1/00 (2006.01)
CPC H02H 7/20 (2013.01) [G01R 19/155 (2013.01); H02H 1/0007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An industrial system, comprising:
a load control assembly having a supply input, a load output, a disconnecting device, and a load controller coupled to the load output, the disconnecting device coupled between the supply input and the load controller;
an absence of voltage tester (AVT) integrated into one of the disconnecting device and the load controller, the AVT configured to detect an absence of an operating voltage of the load control assembly;
an absence of voltage indicator coupled to the AVT and configured to indicate the absence of the operating voltage of the load control assembly detected by the AVT;
a positive load identification (PLI) component integrated into the load controller and configured to send a load indication signal to the load output; and
a PLI indicator integrated into a load and coupled to the load output to receive the load indication signal, the PLI indicator configured to indicate connection of the load in response to the load indication signal.