Gree ME20-24/D1(T)

Intelligent Controller
5
power) and communication indicator (CAN and RS485). The following table is the
working status of each indicator.
CAN
RX
When receiving the data of equipment (eg. AC unit) which connects to
Controller, it blinks.
TX
When transmitting data to the equipment (eg. AC unit) which connects to
Controller, it blinks.
RS485-1
RX
For the power billing function, when connected to the KWH meter and
receiving the data replied, it blinks.
TX
For the power billing function, when connected to the KWH meter and the
data is transferred to the KWH meter, it blinks.
RS485-2
RX
This device does not use this LED indicator.
TX
This device does not use this LED indicator.
STAT
When power supply of Controller is normal, it is on.
BEAT
When Controller is running normally, it blinks.
BACKUP
This device does not use this LED indicator.
5.3 Button
SHT/DWN
When the fourth digit of DIP switch code is “1”, hold the button for 5
s and
all indicators will be on. Reset the Controller controller.
BACKUP
Not use this button for this device temporarily.
5.4 DIP Switch
NOTICE!
Before using this device, please conduct DIP switch setting first, otherwise the
unit will not function normally!
Controller dial-up setting area is consisting of function DIP switch code.
5.4.1 Diagram of Dial-up Machine