Put the black lead on chassis with the red lead measure terminals 4 (A), 5 (B) and 6 (C). If the meter does not show OPEN (O.L) the vector drive is damaged. Set your meter to Ohms test mode. Put the black lead on terminal 2 (+) with the red lead measure the motor output terminals 9 (A), 10 (B) and 11 (C).
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