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    How do you set up the ATV312 drive for modbus control?

    Issue:
    How do you set up the ATV312 drive for modbus control?

    Product Line:
    Altivar ATV31 ATV312 drives

    Environment:
    All

    Cause:
    Needs to set up the ATV312 drive to do modbus control over the network.

    Resolution:
    Programming
    1st set up your modbus address in the CON menu
    Add= modbus address enter 1 thru 247
    tbr= modbus baud rate 4.8K thru 19.2K
    tFo= modbus format: 8-O-1, 8-E-1, 8-N-1 or 8-N-2
    tto=modbus time out 0.1 thru 30 seconds

    2nd set up your ref and command channel in CLT menu
    LAC= Level 3  hold enter in for 3 seconds
    FR1= modbus

    Important addresses
    Command address
    8501= CMD address for start and stopping
    8502= LFRD speed ref in hz  0.1hz  example 600 value equals 60hz

    3201= ETA address for status
    3202= output speed in hz 0.1hz  example 600 value equals 60hz

    Pinouts
    Pin 4=D1 modbus
    Pin 5=D0 modbus
    Pin 8= Common for modbus

    See the attached documents for more programming and modbus information.
     

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