C.6 Drive Operations by MEMOBUS/Modbus C.6 Drive Operations by MEMOBUS/Modbus The drive operations that can be performed by MEMOBUS/Modbus communication depend on drive parameter settings. This section explains the functions that can be used and related parameter settings. u Observing the Drive Operation A PLC can perform the following actions with MEMOBUS/Modbus communications at any time regardless of parameter settings (except H5- ). • Observe drive status and drive control terminal status from a PLC. • Read and write parameters. • Set and reset faults. • Set multi-function inputs.
Inputs settings from the input terminals S and from MEMOBUS/Modbus communications are both linked by an OR operation. u Controlling the Drive To start and stop the drive or set the frequency reference using MEMOBUS/Modbus communications, an external reference must be selected and the parameters listed below must be adjusted accordingly. Table C.1 Setting Parameters for Drive Control from MEMOBUS/Modbus Refer to b1-01: Frequency Reference Selection on page 72 and Refer to b1-02: Run Command Selection on page 73 for details on external reference parameter selections.
MEMOBUS/Modbus Communications C SIEP C710606 33A OYMC AC Drive – J1000 User Manual 193 Parameter Name Required Setting b1-01 Frequency Reference Selection 2 b1-02 Run Command Selection 2