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YASKAWA ELECTRIC
SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
2.5 Drive Operations by MEMOBUS/Modbus
2.5
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. Inputs settings from the input terminals S 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 below
must be adjusted accordingly.
Table 2.1 Setting Parameters for Drive Control from MEMOBUS/Modbus
Refer to
b1-01: Frequency Reference Selection 1 on page 35
for details on external reference parameter selections. Refer to
Setting 2: External Reference 1/2 Selection on page 142
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
Summary of Contents for OYMC V1000
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