Initial Setting; Usb Cable Connection; Test Run; Led Display - Fujitsu UTY-VMGX Installation Manual

Modbus convertor for vrf
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10. I NITIAL 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.
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. T EST 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.
En-9
USB cable connector
13. L ED DISPLAY
13.1. Normal code
Normal indications
LED1
LED2
LED3
(green)
(orange)
(red)
(Flashes alternately)
(Flashes simultaneously)
(Flashes simultane-
ously)
(*)
(*): 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
LED5
LED6
LED7
(green)
(orange)
(red)
(Flashes alternately)
(Flashes simultaneously)
Display mode
: On
: Off
: 0.5s ON / 0.5s OFF
: 1.0s ON / 1.0s OFF
Normal contents
LED4
(Blue)
Start sequence or address
rewriting
Normal starting
VRF sending or receiving
SCAN indication
Test run indication
Number of connected indoor
unit indication
Address update display
Normal contents
Normal starting
MODBUS sending or receiving
Start sequence or address rewriting
USB mode indication

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