YASKAWA FSDrive-MV1000 Series - Drive Operations by MEMOBUS;Modbus

C.5 Drive Operations by MEMOBUS/Modbus
YASKAWA ELECTRIC TOEP C710687 02B FSDrive-MV1000 Instructions 231
MEMOBUS/Modbus Communications
C
C.5 Drive Operations by MEMOBUS/Modbus
The drive operations that can be performed by MEMOBUS/Modbus communications depend on drive parameter
settings. This section explains the functions that can be used and related parameter settings.
◆ Observing the Drive Operation
A master 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 master.
• Read and write parameters.
• Set and reset faults.
• Set multi-function inputs. Inputs settings from the input terminals and from MEMOBUS/Modbus communications are
both linked by an OR operation.
◆ 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 in Table C.2 must be adjusted accordingly.
Table C.2 Setting Parameters for Drive Control from MEMOBUS/Modbus
Refer to b1-01: Frequency Reference Selection 1 and b1-02: Run Command Selection 1 in the FSDrive-MV1000
Parameter Guide (TOEP C710687 03) for details on external reference parameter selections. Refer to Setting 2: External
reference 1/2 selection for H1 contact inputs in the FSDrive-MV1000 Parameter Guide (TOEP C710687 03) for
instructions on how to select external reference 1 and 2.
Reference Source Parameter Name Required Setting
External Reference 1
b1-01 Frequency Reference Selection 1 2
b1-02 Run Command Selection 1 2
External Reference 2
b1-15 Frequency Reference Selection 2 2
b1-16 Run Command Selection 2 2