En-9
10. INITIAL SETTING
Address initial settings are 3 methods as follows.
(1) Default addresses of indoor unit and outdoor unit are used. (Initial set-
ting is not necessary)
Default address value ([RefNo.—NodeNo.])
Indoor unit: [00―00] [00―01]
•••
[00―63]
[01―00] [01―01]
•••
[01―63]
Outdoor unitt: [00―00] [00―01]
•••
[00―03]
[01―00] [01―01]
•••
[01―03]
(2) Scan
Scan procedure is as follows.
• Turn on the switch of scan setting.
• “Scan display” by LED (address is registering inside the convertor.)
• “Number of connected indoor unit display” by LED (Scan is com-
plete)
• Turn off the switch of scan setting
• “Address update display” by LED
• Turn on the main power again.
• “Address rewriting display” by LED (Addresses are synchronized
among boards)
* When scan error is generated, performing the scan again is neces-
sary.
(3) Setting from PC (Refer to the application manual in the DVD of an ac-
cessary.)
11. USB CABLE CONNECTION
Connect the accessory USB cable to the terminal below.
USB
cable connector
Scan information (indoor unit address and outdoor unit address) can be
input from the PC.
Connect the USB cable after turning off the power.
12. TEST RUN
Test run can be performed in the following procedure using the switch
SET 2-3.
(1) Turn the test run switch (SET2-3) to ON.
(2) The indoor unit registered to the convertor starts the test run.
(3) Check that the indoor unit registered to the convertor performs the test
run.
(4) Turn the test run switch (SET2-3) to OFF.
(5) The indoor unit which performs the test run stops it.
* When 60 minutes passes after the start of test run, test run of indoor unit
ends automatically. Always turn the test run switch (SET2-3) to OFF.
13. LED DISPLAY
13.1. Normal code
Normal indications
Normal contents
LED1
(green)
LED2
(orange)
LED3
(red)
LED4
(Blue)
(Flashes alternately)
Start sequence or address
rewriting
Normal starting
VRF sending or receiving
(Flashes simultaneously)
SCAN indication
(Flashes simultane-
ously)
Test run indication
(*)
Number of connected indoor
unit indication
Address update display
(*): Blinking example of 108 units connection
• Flashes per 12 seconds cycle
• LED1 indicates hundreds place of number of connected units: Flashes
once at 0.5s interval (example of 1)
• LED2 indicates tens place of number of connected units: Lights (example
of 0)
• LED3 indicates ones place of number of connected units: Flashes 8
times at 0.5s interval (example of 8)
Normal indications
Normal contents
LED5
(green)
LED6
(orange)
LED7
(red)
Normal starting
MODBUS sending or receiving
(Flashes alternately)
Start sequence or address rewriting
(Flashes simultaneously)
USB mode indication
Display mode : On
: Off
: 0.5s ON / 0.5s OFF
: 1.0s ON / 1.0s OFF