Check code

Check code name

Cause of operation

 

 

 

[E06]

Decreased number of indoor units 1.

Communication lines (U1, U2) connection

 

 

error between indoor and outdoor

 

2.

Connector connection error of communica-

 

 

tion for indoor P.C. board

 

3.

Connector connection error of communica-

 

 

tion for outdoor I/F board

Check code

Check code name

 

Cause of operation

 

 

 

 

[E07]

Indoor/Outdoor

1.

Indoor/outdoor communication end terminal

 

communication circuit error

 

resistance setup error

 

(Detected at outdoor side)

2.

Indoor/outdoor communication connection

 

 

 

error

 

 

 

 

4. Power supply of indoor unit

(Is power turned on?)

Auxiliary code : No. of indoor units which received signals normally

Is setup of end terminal resistance

NO

of outdoor unit normal?

 

 

YES

 

 

 

 

 

YES

Is inter-unit cable (U1, U2) between

 

indoor and outdoor short-circuited?

 

Correct setup of end terminal resistance.

Is there no miscabling/

YES

disconnection on communication line

 

 

betweenindoor and outdoor?

 

Correct communication line.

NO

 

NO

 

 

 

NO

Is connection of CN40 connector

 

on indoor P.C. board normal?

 

 

YES

 

 

 

 

 

 

 

 

 

NO

Correct

communication line.

Is connection of inter-unit wire

between indoor and outdoor correct?

YES

Correct short-circuit.

66

Is connection of CN01 connector on outdoor I/F P.C. board normal?

YES

Is power of indoor turned on?

YES

Did a power failure occur?

YES

Is there no noise, etc?

NO

Check indoor P.C. board.

Defect Replace

NO

Correct cabling of cable connector.

NO

Turn on power of indoor unit.

NO

Clear the check code.

YES

Check noise, etc, and eliminate it if any.

(NOTE)

1.When signal is not sent for a certain period from the indoor unit which has used to send signals normally, [E06] is displayed.

YES

Correct power wire.

YES

Eliminate noise.

Is there no error on

power wire to outdoor unit?

NO

Is there noise source?

NO

Outdoor I/F P.C. board failure Replace

Is F400 (fuse) on

NO

 

I/F P.C. board opened?

 

YES * Check conduction

with tester.

 

 

 

Turn on power to start operation.

I/F P.C. board failure

However an emergent operation is available by inserting connector to be connected to CN01 to CN33.

Page 65 Page 67
Page 66
Image 66
Toshiba MMU-AP0151MH, MMU-AP0181MH, MMU-AP0091MH, MMU-AP0071MH, MMU-AP0121MH E06 Decreased number of indoor units, E07
Page 65 Page 67

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications

The Toshiba MMU-AP series, consisting of models MMU-AP0121MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH, and MMU-AP0181MH, represents a significant advancement in the realm of power management and energy efficiency for a variety of applications. These modules are designed to optimize performance while ensuring minimal energy consumption, making them suitable for both commercial and industrial uses.

One of the standout features of the MMU-AP series is its intelligent power management technology. This feature allows for adaptive energy distribution based on real-time demands. By leveraging precise control algorithms, the modules can adjust their output to match the specific requirements of connected devices, ultimately leading to reduced power loss and increased efficiency. This adaptability not only benefits end-users by lowering operational costs but also contributes to a greener environment by minimizing waste.

The versatility of the MMU-AP series is evident in its wide range of operational capabilities. These power modules are designed to work effectively in various voltage levels and load conditions. With input voltage ranges suitable for standard industrial environments, they can easily be integrated into existing systems, enhancing overall functionality without requiring extensive modifications.

Moreover, the compact design of the MMU-AP modules is another notable characteristic. Their size and light weight facilitate easier installation and integration into tight spaces, making them ideal for applications where real estate is a premium. This compact profile does not compromise performance, as these modules are engineered to deliver robust power output while maintaining thermal efficiency.

In terms of reliability, the MMU-AP series is built with high-grade components that withstand harsh operating conditions. With features such as over-voltage protection, short-circuit protection, and thermal shutdown capabilities, users can trust that their equipment would operate safely and efficiently, thereby extending the lifespan of both the power modules and the devices they serve.

Finally, Toshiba’s commitment to innovation ensures that the MMU-AP series incorporates cutting-edge technology. The series supports communication protocols that enable seamless integration with smart systems, paving the way for advanced monitoring and control functions. This levels up the user experience, providing insights into performance and diagnostics that are crucial for uptime and reliability in demanding environments.

In conclusion, the Toshiba MMU-AP series offers a blend of efficiency, adaptability, and advanced technology, making it a valuable asset for various industrial and commercial applications. Its intelligent design and robust features ensure that users can optimize energy use while maintaining high performance and reliability.
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