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How does Auto-Manual reference switching work on the Altivar 58?

Reference Switching (Auto/Manual) is a function that controls switching between two references (at AI1 and AI2) by a logic input command. When the logic input is closed (set to state 1), AI1 is enabled. This function automatically assigns AI2 to Speed Reference 2.

With option card, the additional analog input can sum with speed reference 1.

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