C.5 Drive Operations By Memobus/Modbus - YASKAWA L1000A Technical Manual

C.5 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.
◆ 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.
Note: Input settings from the input terminals S and from MEMOBUS/Modbus communications are both linked by a logical OR
operation.
◆ Controlling the Drive
Select an external reference and adjust the parameters in
frequency reference using MEMOBUS/Modbus communications.
Table C.1 Setting Parameters for Drive Control from MEMOBUS/Modbus
Reference Source
External Reference
Refer to b1-01: Speed Reference Selection on page 166
for details on operation mode parameter selections.
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
Parameter
b1-01
b1-02 Up/Down command Selection
and
C.5 Drive Operations by MEMOBUS/Modbus
Table C.1 accordingly to start and stop the drive or set the
Name
Speed Reference Selection
Refer to b1-02: Up/Down Command Selection on page 167
Required Setting
2
2
C
451