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denise01

Seperate Control Altivar 312

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Hello I want to control an Altivar 312 using A1/1 for start/ stop and control the speed of the Drive via Modbus using a HMI Screen sending a speed reference to LFRD. I have tried using Fr1 for A1/1 and have set Fr2 to Modbus but when I try to alter the speed on my HMI nothing happens. Does anyone know if it is possible to do this and if so where am I going wrong. If I set for Modbus on both Channels I can adjust the speed ok but I would like to keet Start/Stop on the Terminals. Regards Peter

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