(2)Communication/system

Checking

Meaning, detecting method

 

Cause

 

Checking method & Countermeasure

code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6600

Multiple address error

1)

Two or more controllers of outdoor

At the genration of 6600 error, release the error by

 

 

 

 

 

unit, indoor unit, remote controller,

remote controller (with stop key) and start again.

 

Transmission from units with the

 

BC controller, etc. have the same

a) If the error occures again within 5 minutes.

 

same address is detected.

 

address.

Search for the unit which has the same address

 

 

 

 

2)

In the case that signal has changed

with that of the source of the trouble.

 

 

Note:

 

 

due to noise entered into the trans-

 

 

 

 

 

The address/attribute

 

 

mission signal.

 

When the same address is found, turn off

 

 

 

shown on remote

 

 

 

 

the power source of outdoor unit, BC con-

 

 

 

controller indicates the

 

 

 

 

troller, and indoor unit for 5 minutes or more

 

 

 

controller which has

 

 

 

 

after modifying the address, and then turn

 

 

 

detected error.

 

 

 

 

on it again.

 

 

 

 

 

 

 

b) When no trouble is generated even continuing

 

 

 

 

 

 

 

 

 

 

 

 

operation over 5 minutes.

 

 

 

 

 

 

The transmission wave shape/noise on the

 

 

 

 

 

 

transmission line should be investigated in ac-

 

 

 

 

 

 

cordance with <Investigation method of trans-

 

 

 

 

 

 

mission wave shape/noise>.

 

 

 

 

 

 

 

 

 

6602

Transmission processor hardware

1)

At the collision of mutual transmission data generated during the wiring work or polarity

 

error

 

change of the transmission line of indoor or outdoor unit while turning the power source

 

 

 

 

 

on, the wave shape is changed and the error is detected.

 

Though transmission processor

2)

100V power source connection to indoor unit or BC controller.

 

intends to transmit “0”, “1” is dis-

3)

Ground fault of transmission line.

 

 

 

 

played on transmission line.

4)

Insertion of power supply connector (CN40) of plural outdoor units at the grouping of

 

 

 

 

 

plural refrigerant systems.

 

 

 

 

 

Note:

 

5)

Insertion of power supply connector (CN40) of plural outdoor units in the connection

 

 

The address/attribute

 

 

system with MELANS.

 

 

 

 

 

shown on remote

 

6)

Faulty controller of unit in trouble.

 

 

 

 

 

controller indicates the

 

7)

Change of transmission data due to the noise in transmission.

 

 

controller which has

 

8)

Connection system with plural refrigerant systems or MELANS for which voltage is not

 

 

detected error.

 

 

applied on the transmission line for central control.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–118–

Page 120
Image 120
Mitsubishi Electronics P500YMF-C, PURY-P400 118, Communication/system, With that of the source of the trouble, Error

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