Electrical Wiring - Hitachi HC-A32MB Installation And Operation Manual

2.7 Electrical Wiring

In order to run, HC-A32MB must be connected to the corresponding input and output signals, power supply cables and H-LINK.
No. Connection
1 Power supply circuit
1~ 230V 50Hz 25W
(With protection circuit)
2 MODBUS
3 H-LINK
4 PCBs Power supply
+5V DC. Imax.= 5 A DC
?
Note:
- All cables, except 4 are field supplied
- HC-A32MB requires RS-485 polarization resistors to be installed according with Modbus specifications. These resistors are
field supplied.
1
2
3
Field supplied Protections:
CB/EF: 5A
ELB: 2/40A/30mA
CB: Circuit Breaker
EF: Electric Fuse
ELB: Earth Leakage Breaker
10
PMML0191A rev.2 - 05/2013
Select wires accordiong local regulatrions
(recommended minimum 1.5 mm² H05RN-F)
3 cables harness 0.75 mm² (H05RN-F type). Use different colour for each cable.
(Serial Port RS485)
Communication cables for the connection of HC-A32MB to an Hitachi installation, via
CSNET WEB or any Hitachi unit using same H-LINK terminals.
Twisted pair shielded cable 0.75 mm² (H05RN-F TYPE).
Shield must be grounded in one side only.
Pair cable 0.75 mm² (H05RN-F TYPE)
Cable Specifications
4
Installation