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Mitsubishi Electric AT-50B, Installation Manual

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Mitsubishi Electric AT-50B Installation Manual Download Page 9

– 9 –

1-8. Using an SD memory card

1-9. Optional Parts

1-10. Note

A protective film is placed on the display.

Remove the protective film off the display before use.

The AT-50B has a slot for an SD memory card at the bottom that
can be used to update software.
Refer to section “To Update The Software (as necessary)” on the
last page for the detailed information about updates.
*Only the 1GB and 2GB SD memory cards by SanDisk are
supported. 

Parts

Model

Usage

Note

External input/output 
adapter

PAC-YT51HAA

Enables the use of external 
input/output function

Required to use the external input/output function
5-wire cable (input), 4-wire cable (output)

“SD Logo is a trademark of SD-3C, LLC.”

(a)

(b)

(c)

(a) Remove the SD memory card slot cover from the controller.

(b) Insert the SD memory card into the slot until it clicks.

(c) To remove the SD memory card, push it in until it clicks. 

Bottom of controller

SD memory slot (for program updates)

WT06990X04_GB.book  9 ページ  ２０１８年５月２２日　火曜日　午後１時５５分

Summary of Contents for AT-50B

Page 1: ...ts with wet hands To reduce the risk of injury or electric shock before spraying a chemical around the controller stop the operation and cover the controller To reduce the risk of injury or electric shock stop the operation and switch off the power supply before cleaning maintaining or inspecting the controller Properly install all required covers to keep moisture and dust out of the controller Du...

Page 2: ...cables and cable access holes with putty The controller should be repaired or moved only by qualified personnel Do not disassemble or modify the controller Improper installation or repair may cause injury electric shock or fire To reduce the risk of shorting electric shock fire or malfunction do not touch the circuit board with tools or with your hands and do not allow dust to accumulate on the ci...

Page 3: ...ual 1 2 Mounting bracket 1 AT 50B Power lamp Display screen Touch panel For connection to the M NET A B Terminal for connection to the M NET transmission cable non polarized External output adapter cable access hole External input adapter cable access hole Controller cover mounting screw SD memory slot for program updates TB7 TB3 ME MA MA R2 TB7 TB3 MA MA 051 001 106 006 007 008 009 010 056 057 00...

Page 4: ... as for the indoor units apply An M NET interface sold separately is required 1 50 M NET remote controller Assign an address that equals the address of the main indoor unit with the lowest address in the group plus 100 Add 150 instead of 100 to set a sub remote controller 101 200 Sub system controller Assign an address that equals the lowest number of the group to be controlled plus 200 201 250 DI...

Page 5: ... the controller Have extra cables to extend these cables as necessary To install the controller according to the instructions provided in sections a and b 1 above Include an extra 30 cm 12 in of cable to provide adequate slack in the cable Remove the sheath on the M NET transmission cable up to 20 cm 8 in from the end To install the controller according to the instructions provided in section b 2 ...

Page 6: ...transmission cable is non polarized Insert the cables in the groove on the controller so they will not be pinched when the cover is installed To route the cable along the wall surface Secure the cables in place with a cable cover and seal the gap between the cable cover and the controller with putty 5 Replace the cover Snap the cover into place and attach it to the controller with a screw at the b...

Page 7: ...set to a value between 0 2 and 1 seconds Mode External input setting Notes 1 Not used Factory setting Select this mode when not using an external signal input function 2 Emergency Stop Level signal Using a level signal all the air conditioning units will be stopped collectively in an emergency During an emergency stop the ON OFF operation from the local remote controllers will be prohibited and th...

Page 8: ... extension cables are field supplied Note External output of the AT 50B is a dry contact Select an external power supply suitable for the relays used 12 VDC or 24 VDC To prevent malfunction connect the external power supply to the input circuit with the correct polarity CN2 X1 AT 50B X1 1 2 3 4 5 Maximum 10 m 32 ft Field supplied Yellow Green ON OFF or Emergency stop X1 X2 Y1 Y2 CN2 X1 AT 50B X2 Y...

Page 9: ...B and 2GB SD memory cards by SanDisk are supported Parts Model Usage Note External input output adapter PAC YT51HAA Enables the use of external input output function Required to use the external input output function 5 wire cable input 4 wire cable output SD Logo is a trademark of SD 3C LLC a b c a Remove the SD memory card slot cover from the controller b Insert the SD memory card into the slot u...

Page 10: ... only or both remote controllers and sub system controllers Access to ON OFF Mode Set Temp Filter Reset Air Direction Fan Speed Timer and Check Water sign Air To Water PWFY 13 External input mode Selects the external input mode 13 Filter sign Displays or suppresses the filter sign on the HOME screen 13 Dry mode Includes or excludes Dry mode as an option for the operation mode 13 Operation mode con...

Page 11: ...GRID zoom out view GRID zoom in view LIST view GROUP view Main Menu screen Login Page screen 1 Password Change screen Service Menu Service Menu screen Initial Settings 1 Basic System Initial Settings 2 Groups Groups Interlocked LOSSNAY Delete All System View Malfunction Log Gas Amount Check Maintenance Test Run Software update Button name Main Menu Service Menu Password Change Return HOME Cancel L...

Page 12: ... communication g The message shown above will appear on the screen displaying the initialization progress When initialization is complete the screen will automatically return to the HOME screen Initialization will take up to five minutes To change settings later perform a test run or verify the maintenance information 1 Touch Main Menu button on the HOME screen 2 Touch Service Menu button on the M...

Page 13: ...ohibition Setting on the AT 50B The factory setting is Enabled Remote controller access setting 1 Touch the button labeled 4 in the figure to switch between SC RC and RC Only Select SC RC to prohibit access from both the system controllers and remote controllers and select RC Only to prohibit access from only the remote controllers The factory setting is RC Only Access to ON OFF Mode Set Temp Filt...

Page 14: ...ing functions Saving the settings 1 Touch the Save button to save the settings 2 2 Group settings This setting can be made only when AT 50B is set as a main controller If AT 50B is set as a sub controller the setting can be monitored only Enter the group settings on the Groups screen air conditioning units general equipment and their respective group names that are connected to AT 50B Touch Initia...

Page 15: ...n be assigned to each group Do not assign a system controller that does not support Air To Water PWFY to Air To Water PWFY group which may result in unit malfunction 5 After all the settings have been made touch the Save button Group settings for general equipment 1 Touch the model selection button labeled 2 in the figure to access the Model selection screen Touch the model selection button labele...

Page 16: ...ked indoor unit button labeled 2 in the figure On the popup window that appears check the address of the indoor units to be interlocked with the ventilation units Up to 16 indoor units can be assigned to each ventilation unit 3 After all interlocked operation settings have been made touch the Save button 2 4 Batch deletion Available only when AT 50B is set as a main controller To delete all group ...

Page 17: ... is Air To Water PWFY group 2 Operation mode Touch this button to switch the operation mode 3 Pipe temperature 1 The pipe temperature of the unit with the lowest address in a given group will appear 4 Advanced settings Touch this button for advanced settings 1 The water temperature will appear if the group is Air To Water PWFY group The water temperature to be displayed depends on which temperatur...

Page 18: ...utes to 1 hour and check results will be displayed upon completion When the amount of refrigerant charge is normal Normal will appear on the screen and if the outdoor units are low on refrigerant due to leaks Lo will appear It is not necessary to keep this page open until checking is completed Even if the screen is closed the check results and the log will be displayed next time this page is opene...

Page 19: ...he popup message to begin the update process 6 The lit LEDs on the three buttons F1 F2 and Collective ON OFF will indicate a successful completion of the update While update is in progress the LEDs on the F1 and F2 buttons will alternately blink Consult your dealer if the update is not completed in 10 minutes 7 After the update has been completed turn the DIP switch 4 to OFF to restart the AT 50B ...

Page 20: ...ions Electromagnetic Compatibility Directive 2014 30 EU Restriction of Hazardous Substances 2011 65 EU HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN MANUFACTURER MITSUBISHI ELECTRIC CORPORATION Air conditioning Refrigeration Systems Works 5 66 Tebira 6 Chome Wakayama city 640 8686 Japan WT06990X04_GB book 20 ページ ２０１８年５月２２日 火曜日 午後１時５５分 ...

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