Delta ASDA-A3 Series User Manual page 387

Operation Mode
Step 3: the two pulse signals are in inverse directions due to the previous setting of P1.074.Z.
Switch P1.074.Z to the other setting.
6
Step 4: go back to Step 2 to ensure the feedback pulses of the main encoder and auxiliary
encoder increase or decrease in the same direction.
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ASDA-A3