Gree LSQWRF60VM/NhA-M - Hardware

22
Unit Control
From the topological diagram above, the long-distance monitoring system consists of 3 parts
:
The rst part is the BMS and the converter used to convert RS232 signals from the BMS into RS485
signals of the long-distance monitoring network.(it is required only when RS232 is used for the BMS)The
second part refers to the communication network including the communication lines and the connected
hardware.
The second part refers to the communication network, that is, the communication lines and the
connected hardware.
The third part is the patching board responsible for the data exchange between the air conditioning
system and the monitoring PC. When there is only one unit, the patching board is not required and RS485
signal lines from BMS can be directly connected to the BMS port of the control panel. When there are
multiple units, signal lines from BMS are required to connected to the BMS port through the patching
board.
Communication lines
Line code Description Type
L1
Category– 5 twisted pairs, two four-wire connectors, one for the
communication patching board, the other for the unit.
S
L2 Category-5 twisted pairs, two four-wire connectors S
L3
Category-5 twisted pairs, one four-wire connector for the
communication patching board, the other connector for RS232–
485 photoelectric converter.
O
R1 DB9 serial port line S
S=standard; O=eld-supplied; P=optional
2.5.3 Hardware
Parts list
Name Model Code Remarks Type
Optoelectronic
isolated
repeater
RS485–W LN02200010
A repeater is required every 800m
communication distance or every
30 communication nodes (control
panels).
P
Optoelectronic
isolated
converter
GD01 LN02200020
It is required when there is no
remote monitoring kit but RS232
communication is used.
P
Remote
monitoring kit
FG30-00/A(M) MC200027
It is for remote monitoring other than
BMS.
Other main parts: monitoring
software disc, optoelectronic
isolated converter
S
Accessory
XE73-25/G
XE73-25/G NC20700050
It is required when several units
forms a net work. It is intended to
connect two or three communication
lines.
Other main parts: communication
patching board (with xed support),
connection line
P
S=standard; O=eld-supplied; P=optional