HMU15 Genset Remote Monitoring Controller User Manual Page 9 of 10
Fig.5 – Wiring Diagram
NOTE:
Communication line need use shielded line, if the distance is close, 1#GND and 2#GND not need to be
connected to the shielded layer.
NOTE:
Please unplug HMU15 power cable before wiring to avoid electric shock or accident.
NOTE:
HMU15 communicates with HGM9510 via RS485 communication port, using the matched communication
line, one end (DB9) connects with HMU15, and the other end, which has 6 lines (two communication ports). 1#485+
and 1#485- are one communication port, which can connect with three HGM9510 controllers (communication
address can be set as 1, 3, 5); 2#485+ and 2#485- are the other communcation port, which can connect with three
HGM9510 controllers (communication address can be set as 2, 4, 6).
