YASKAWA A1000 Technical Manual

C.2 Communication Specifications
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 547
MEMOBUS/Modbus Communications
C
C.2 Communication Specifications
MEMOBUS/Modbus specifications appear in Table C.1.
Table C.1 MEMOBUS/Modbus Communication Specifications
Item Specifications
Interface RS-422, RS-485
Communications Cycle Asynchronous (Start-stop synchronization)
Communication Parameters
Communication Speeds Available 1.2; 2.4; 4.8; 9.6; 19.2; 38.4; 57.6; 76.8; 115.2 kbps
Data length 8 bit (fixed)
Parity Select even, odd, or none
Stop bit 1 bit (fixed)
Protocol MEMOBUS/Modbus (using RTU mode only)
Max Number of Slaves 31 drives (RS-485)

YASKAWA A1000 Specifications

General

Type	AC Drive
Series	A1000
Input Voltage	200-240V, 380-480V
Frequency Range	0-400 Hz
Horsepower Range	0.5 to 1000 HP
Power Range	0.4 to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Braking	Dynamic Braking
Communication	Modbus
Safety	Safe Torque Off (STO)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Operating Temperature	-10 to +50°C
Storage Temperature	-20 to 60°C
Humidity	5 to 95% RH (non-condensing)
Enclosure	IP20