YASKAWA V1000 Series Installation & Start-Up Manual

C.1 MEMOBUS/Modbus Basic Set-Up
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07) 429
Network Communications
C
◆ Communication Specifications
The MEMOBUS/Modbus communication specifications are explained in
Table C. 1 .
Table C.1 MEMOBUS/Modbus Communication Specifications
◆ Communication Connection Terminal
MEMOBUS/Modbus communication uses the following terminals: S+, S-, R+, and
R-. The terminating resistor must be turned ON only if the Drive is at the very end
of the serial communication chain. Set the terminating resistor by turning ON pin 1
of switch S2.
Figure C.2
Figure C.2 MEMOBUS/Modbus Switch
Item Specifications
Interface RS-422, RS-485
Communications Cycle Asynchronous (Start-stop synchronization)
Communications Parameters
Baud rate: Select from 1200 to 115200 bps.
Data length: 8 bits fixed
Parity: Select from even, odd, or none.
Stop bits: 1 bit selected
Communications Protocol MEMOBUS/Modbus RTU
Number of Connectable Units 31 units maximum
Terminating resistor (1/2W, 110 Ohms)
RS-422A
or RS-485
Switch
S+
S-
R+
R-
+
-
1

YASKAWA V1000 Series Specifications

General

Model	V1000 Series
Series	V1000
Output Frequency	0.1 to 400 Hz
Overload Capacity	150% for 60 seconds
Type	AC Drive
Control Method	V/f Control
Input Voltage	200-240V, 380-480V
Output Voltage	0 to Input Voltage
Power Range	0.1 to 18.5 kW
Horsepower	0.2 to 25 HP
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit, Ground Fault
Communication Interfaces	Modbus RTU
Enclosure	IP20
Ambient Temperature	-10 to +50°C
Storage Temperature	-20 to +60°C
Humidity	5 to 95% RH (non-condensing)
Cooling Method	Fan Cooled