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CA14T083

<< Outline >>

This tool (hereinafter referred to as “DFTT”) is PC software for judging whether I/O board is out of order. DFTT helps you to judge I/O board and to avoid replacing controller assembly.

Daikin Function Test Tool (DFTT)

Operation Manual

Note : As other useful function, uploading software is available. DFTT can be used for DECOSIIIe, f, g (as of Aug.2014) like existing FDT(RENESAS) is used.

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I/O board

Control BOX (LXE10E)

<< Connection outline >>

Start DFTT after connecting a personal computer to a communication port.

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I/O board

Control BOX (LX10F)

Start DFTT after connecting a personal computer to a communication port.

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<< CONTENTS >>

Item Description Page

1. Introduction Communication port setup 5

2. Failure diagnosis

Flow chart 6

Setting method for DECOSⅢe,f,g（LXE10E***） 7

Valve control check 10

Phase correction contactor check 12

Fan motor operation check 14

Compressor operation check 16

Setting method for DECOS V,Va（LX10F***） 18

Valve control check 21

Phase correction contactor check 23

Fan motor operation check 25

3. Software upload Software upload method 27

4. Other Other functions 29

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1. Introduction

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1. Select FILE → Config.

■Communication port setup

2. Select COMM PORT.

3. Select OK.

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2. Failure diagnosis

Does I/O board have an output of AC24V?

Start DFTT

Check parts(*1) activated by DFTT

YES

NO

⇒other failures suspected （Valve etc…)

Flow chart

I/O board ⇒ OK

I/O board ⇒ NG

(*1) Valve or Magnetic contactor.

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1. Select TOOL → Test → DECOS IIIe,f,g.

■ Setting method for DECOS IIIe,f,g (LXE10E***)

2. The following screen appears automatically, select START.

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3. Wait for about 10 seconds while initializing (PRESSURE EQUALIZING). (“Initializing…” is displayed.)

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4. When initializing completed, the screen will be shown as below. (START button disappears.)

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◆Valve control check 1. Select RSV. (for example )

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2. Check with a tester AC24V.

If there is NO 24V, I/O board is out of order.

Judgment! Judgment!

If there is NO 24V, I/O board is out of order.

* When I/O board is normal, failure of Magnetic Contactor is suspected.

(Note) For your safety, When PCC1 or PCC2 are selected, EF*, CF* CC are not activated.

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◆Phase correction contactor (PCC1 or PCC2) check

1. Select PCC1. (for example)

Judgment!

If there is NO 24V, I/O board is out of order.

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2. Check with a tester AC24V.

* When I/O board is normal, failure of Magnetic Contactor is suspected.

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◆Fan motor operation check

1. Select EFH. (for example)

(Note) For your safety, When EF*, CF are selected, PCC1 and PCC2 are not activated.

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2. Check with a tester AC24V.

Judgment!

If there is NO 24V, I/O board is out of order.

* When I/O board is normal, failure of Magnetic Contactor is suspected.

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◆Compressor operation check

1. Select CC.

(Note) For your safety, When CC is selected, PCC1 and PCC2 are not activated.

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2：Check with a tester AC24V.

Judgment!

If there is NO 24V, I/O board is out of order.

* When I/O board is normal, failure of Magnetic Contactor is suspected.

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■ Setting method for DECOS V, Va（LX10F***）

1. Select TOOL→ Test → DECOS V, Va

2. The following screen appears automatically, select START.

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3. Wait for about 10 seconds while initializing (PRESSURE EQUALIZING). ( Initializing… is displayed.)

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4. When initializing completed, the screen will be shown as below. (START button disappears.)

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◆Valve control check

1. Select LSV. (for example )

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2. Check with a tester AC24V.

Judgment!

If there is NO 24V, I/O board is out of order.

* When I/O board is normal, failure of LSV coil is suspected.

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◆Phase correction contactor (PCC1 or PCC2) check

1. Select PCC1. (for example )

(Note) For your safety, When PCC1 or PCC2 are selected, EFH, EFL, CF are not activated.

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2：Check with a tester AC24V.

Judgment!

If there is NO 24V, I/O board is out of order.

* When I/O board is normal, failure of Magnetic Contactor is suspected.

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◆Fan motor operation check

1. Select EFH. (for example )

(Note) For your safety, When EFH, EFL or CF are selected, PCC1 and PCC2 are not activated.

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2：Check with a tester AC24V.

Judgment!

If there is NO 24V, I/O board is out of order.

* When I/O board is normal, failure of Magnetic Contactor is suspected.

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1. Select FILE → Load.

3. Software upload

■ Software upload method

2. Select “****.mot" file.

3. Selected software is checked.

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4. Select UPLOAD → Upload(PC → CNT)

(Note) Uploaded software version can be confirmed.

* Select UPLOAD → DECOS Version to show lower 2 figures of the software version.

5. Software writing starts.

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1. 7SEG-LED, LED or LCD lighting check function

4. Other

■ Other functions

＜for DECOS IIIe, f, g＞

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2. SMV or EV Control check function

< Procedure > 1. Select Initialize. 2. Push SET. ⇒ Initializing starts. 3. Opening ratio can be adjusted by gauge. 4. Push SET. ⇒ Control starts.

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1. LED, LCD-BACKLIGHT or LCD lighting check function

＜for DECOS V, Va＞

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2. EEV,EMV or DMV Control check function

< Procedure > 1. Select Initialize. 2. Push SET. ⇒ Initializing starts. 3. Opening ratio can be adjusted by gauge. 4. Push SET. ⇒ Control starts.