New product general data
2 NEW PRODUCT GENERAL DATA
2.3.1
Hardware specifications
Item
Specifications
Power supply
1~ 230 V ±10% 50 Hz
Consumption
4.5W (maximum)
Outer dimensions
Width: 106 mm, Depth: 90 mm, Height: 58 mm
Weight
165 g
Assembling conditions
Indoors (installation inside an enclosure with restricted access by a tool)
Ambient temperature
0~60 ºC
Humidity
20~85% (Without condensation)
2.3.2
Communication
RS485
Item
Specifications
Type
Modbus RTU for HC-A(8/64)MB
Not available for HC-A64NET
Connector
Serial Port RS485 (3 screw terminals)
Communication line
Shielded twisted pair cable, with third wire (for the common), with polarity.
Communication system
Half-duplex, multipoint serial connection
Communication method
Non parity or odd/even parity selection. Data length: 8 bits – 1 stop bit
Baud rate transmission
19200/9600 Baud
Length
Max. 1200 m according EIA-485
Ethernet
Item
Specifications
Type
Modbus TCP for HC-A(8/64)MB
TCP/IP communication for HC-A64NET
Connector
Ethernet (RJ45)
Communication line
Two twisted pair cable CAT5 or better (T-568A/T-568B)
Communication system
Full-duplex
Length
Max. 100 m according IEEE 802.3
H-LINK
Item
Specifications
Communication with
HC-A(8/64)MB and HC-A64NET: Hitachi Air Conditioning series: SET FREE, UTOPIA and CENTRIFUGAL
systems
Communication line
Twisted pair shielded cable, non-polarity
Communication system
Half-duplex
Communication method
Asynchronous
Speed of transmission
9600 Bauds
Length of wiring
1000 m maximum (total length of H-LINK I/O bus)
Maximum number of gateways
1 Gateway (HC-A8MB,HC-A64MB)/H-LINK SYSTEM
Maximum number of IU
HC-A64MB → up to 64 * Indoor Units
HC-A8MB → up to 8 * Indoor Units
HC-A64NET → up to 64* Indoor Units
2
PMML0351A rev.1 - 10/2015