US 11,728,711 B2
Motor control device
Masaru Saito, Aichi (JP); and Motozumi Yura, Aichi (JP)
Assigned to OKUMA CORPORATION, Aichi (JP)
Filed by OKUMA Corporation, Aichi (JP)
Filed on Feb. 11, 2021, as Appl. No. 17/173,572.
Claims priority of application No. 2020-021677 (JP), filed on Feb. 12, 2020.
Prior Publication US 2021/0249938 A1, Aug. 12, 2021
Int. Cl. H02H 3/04 (2006.01); H02K 11/21 (2016.01); G01R 31/50 (2020.01); G01R 31/34 (2020.01)
CPC H02K 11/21 (2016.01) [G01R 31/343 (2013.01); G01R 31/50 (2020.01)] 6 Claims
OG exemplary drawing
 
1. A motor control device, comprising:
a current instruction generation unit for generating, in diagnosis of connection of a motor line of a three-phase motor, a current instruction for causing equal currents to flow into two respective phases of the three-phase motor or a current instruction for causing a current to flow into one phase of the three-phase motor so that a current equal to a half of the current having flown in flows out from each of remaining two phases.