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Mitsubishi Electric AG-150A Instruction Book Page 42

Air-conditioner network system.
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Example 3: Interlocked operation of indoor unit and card key via a DIDO controller
Signal indicating the card
key has been removed
AG-150A
Signal to stop the air
conditioning unit
Note: It takes longer than usual to issue commands when the interlock conditions are met. This may delay the state change
verification, which is usually performed every three to five seconds.
When other controls such as scheduled operation or Energy-Save Control are performed at the same time, the interlock
control may be delayed. If PAC-YG50ECA Expansion Controllers are connected, communication may take longer and
cause a delay of more than ten seconds. For instance, when all the 150 air conditioning units are set to ON using Expansion
Controllers, the interlock control is delayed about one minute. Take into consideration these types of delays when setting
the Interlock control.
Note: Interlock control is not effective when External Input Setting on AG-150A is set to ON/OFF (Level signal) (refer to 4-2-2-3).
Note: When the units are in the Emergency Stop mode (refer to 4-2-2-3) or in Stop Control method (refer to 5-2) during
Energy-Save Control, only free contact and general interface (PAC-YG66DCA) will be performed and other Interlock control
will not.
Note: To use this function, the Interlock control license must be registered. Check that the license has been registered properly on
the license registration screen (refer to chapter 9).
Note: If the user logs in as a building manager, some of the operations may be prohibited.
Note: Free contact is available for use on R410A-compatible indoor units and R407C-compatible indoor units with S/W Ver. 33 or
later. The S/W version can be confirmed with the maintenance tool.
Note: When connecting AG-150A controllers by connecting an Expansion Controller to the system, interlock control settings should
be made only on one of the AG-150A controllers.
Note: When deleting a group or integrating a group with another group, also delete the interlock condition settings that correspond
to that group.
Caution:
Before using the interlock control, you must agree to the following.
1.This feature must not be used for disaster prevention or security purposes unless a backup device is provided in case of
failure of this feature. (Not designed to be used in situations that are life-threatening)
2.No functions must be added that allow the malfunctioning unit to run by defeating the safety features, such as an external
ON/OFF switch or a short-circuit.
3.Those settings for the function that are not supported by the interlocked units must not be made. All the settings must be made
within the specified range.
(Failure to observe these precautions may result in malfunctions and failures.)
4.Perform a test run for interlock control, and confirm the correct settings and normal operation.
5.The system must be configured in the way that integrates the operation of the interlocked fire and emergency control systems.
6. The followings are the condition examples that should NOT be set.
<Inappropriate condition examples - repeating ON and OFF eternally>
Ex1: Turn off Group1 when Group1 is turned on.
Ex2: Turn on Group1 when Group1 is turned off.
These settings may damage the units by repeating ON and OFF.
Card key signal input
DIDO controller
(PAC-YG66DCA)
Indoor unit
41
Card key

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