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    Video: How do you wire and program an ATV31 or ATV312 to follow an external 0-10vdc speed pot on AI1 and use the logic inputs for starting and stopping?

    Issue:
    Wiring and configuring 2-wire terminal start/stop run control on Logic Input 1 (LI1 + 24vdc) and 0-10vdc speed control via Analog Input 1 (AI1) on Altivar 31 & 312 (ATV31/ATV312) Variable Frequency Drives (VFD). A potentiometer is commonly used as the 0-10vdc analog speed reference.

    Product Line:
    Altivar 31 and 312

    Environment:
    All models in range.

    Cause:
    Pot for speed control or 0-10v logic input for speed control.

    Resolution:
    Wiring:
    Wire your external pot to AI1 com and +10vdc. (wiper wire on AI1)
    Wire your Start forward command between LI1 and +24vdc.

    Programming:
    Step 1: Go into the CTL menu enter
    Step 2: Set Fr1 to AI1

     

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