US 11,923,793 B2
Motor-drive with universal jumper configuration
Xuechao Wang, Milwaukee, WI (US); Bora Novakovic, Thiensville, WI (US); and Rangarajan M. Tallam, Germantown, WI (US)
Assigned to Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed by Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed on Nov. 30, 2021, as Appl. No. 17/538,610.
Application 17/538,610 is a continuation of application No. 16/258,371, filed on Jan. 25, 2019, granted, now 11,218,105.
Prior Publication US 2022/0085745 A1, Mar. 17, 2022
Int. Cl. H02P 27/06 (2006.01); H02M 1/44 (2007.01); H02M 5/458 (2006.01); H02P 29/024 (2016.01)
CPC H02P 27/06 (2013.01) [H02M 1/44 (2013.01); H02M 5/4585 (2013.01); H02P 29/0241 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A motor-drive system, comprising:
a power converter configured to generate a direct current (DC) voltage based on three voltages received from three supply voltage lines via a voltage source;
a metal-oxide varistor (MOV) assembly comprising four metal-oxide varistors (MOVs), wherein three MOVs of the MOV assembly are configured to respectively couple to the three supply voltage lines, wherein the MOV assembly is configured to couple between the voltage source and the power converter;
an electromagnetic compatibility (EMC) capacitor assembly coupled between the voltage source and the power converter;
a permanently-installed jumper configured to couple a fourth MOV of the MOV assembly to a system ground via a welded joint connection, wherein each of the three MOVs is configured to couple between the fourth MOV and a respective voltage supply line of the three supply voltage lines;
a housing configured to enclose the permanently-installed jumper and render the permanently-installed jumper inaccessible from outside the housing; and
a removable jumper configured to couple the EMC capacitor assembly to the system ground, wherein the removable jumper is exposed outside the housing.