YASKAWA J1000 Technical Manual

C.2 MEMOBUS/Modbus Configuration
Drives can be controlled from a PLC or other master device via serial communications after installing the interface for
MEMOBUS/Modbus communication (SI-485/J).
MEMOBUS/Modbus
communication can be configured using one master (PLC) and a maximum of 255 slaves. The drive has
slave functionality only, meaning that serial communication is normally initiated from the master and responded to by the
slaves.
The master performs serial communications with only one slave at a time. The address or node for each slave must be set
beforehand so that the master can communicate with the slave at that address. A slave that receives a command from the master
will perform the specified function and then send a response back to the master.
Master (PLC or other)
DRIVE
DRIVE DRIVE
Figure C.1 Connecting Multiple Drives to a PLC
C.2 MEMOBUS/Modbus Configuration
YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual
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C
MEMOBUS/Modbus Communications
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YASKAWA J1000 Specifications

General

Series	J1000
Voltage Class	200V, 400V
Frequency	50/60 Hz
Enclosure Rating	IP20
Enclosure Type	Open type
Voltage	200-240V, 380-480V
Control Method	V/f control
Overload Capacity	150% for 60 seconds
Protection	Overcurrent, Overvoltage, Undervoltage, Overheat, Ground Fault, Short Circuit
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit
Humidity	5-95% (non-condensing)
Enclosure	IP20
Input Voltage	200-240V, 380-480V