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Mitsubishi Electric EW-50E - User Manual

Mitsubishi Electric EW-50E
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Air Conditioning Control System
Centralized Controller
EW-50A/EW-50E
Before installing the controller, please read this Installation Manual carefully to ensure proper operation.
Retain this manual for future reference.
Installation and Instructions Manual
Safety notes are marked with WARNING
or
CAUTION, depending on the severity
of possible consequences that may result
when the instructions are not followed
exactly as stated.
Proper installation is important for your
safety and proper functioning of the units.
Thoroughly read the following safety
precautions prior to installation.
Contents
1. Safety precautions .......................................................................2
1-1. General precautions ....................................................................................... 2
1-2. Precautions for unit installation ....................................................................... 3
1-3. Precautions for electrical wiring ...................................................................... 3
1-4. Precautions for relocating or repairing the unit ............................................... 4
1-5. Additional precautions .................................................................................... 4
2. Introduction ..................................................................................6
2-1. Part names ..................................................................................................... 6
3. Package contents ......................................................................... 8
4. Specifications ...............................................................................9
4-1. Product specifications ..................................................................................... 9
4-2. External dimensions ..................................................................................... 10
4-3. Product features ............................................................................................11
5. System configuration .................................................................. 14
5-1. System restrictions ....................................................................................... 14
5-2. M-NET power feeding coefficient .................................................................. 15
5-3. System configuration example ..................................................................... 16
5-4. Number of connectable units ........................................................................ 20
5-5. Setting M-NET address for various devices ................................................. 21
6. Installation ..................................................................................23
6-1. Items not included ........................................................................................ 24
6-2. Items sold separately .................................................................................... 24
6-3. M-NET transmission cable length ................................................................. 25
6-4. Installation space .......................................................................................... 26
6-5. Installation procedures ................................................................................. 27
7. Wiring connections .....................................................................30
7-1. Removing/reinstalling the service cover ....................................................... 30
7-2. Connecting AC power cables and M-NET transmission cables.................... 32
7-3. Connecting the LAN cable ............................................................................ 34
7-4. Confirming the LAN transmission delay time ................................................ 34
8. Initial settings .............................................................................36
8-1. Logging in to the Web Browser for Initial Settings ........................................ 36
8-2. Initial settings on the Web browser ............................................................... 36
8-3. Quick IP address setting ............................................................................... 37
8-4. Network settings on the Web browser .......................................................... 38
9. Test run ......................................................................................39
9-1. Collective operation ON/OFF ....................................................................... 39
10. External input/output ..................................................................40
10-1. External signal input/output function ........................................................... 40
10-2. Pulse signal input function .......................................................................... 44
11. Maintenance ............................................................................... 45
11-1. Inspection and maintenance ....................................................................... 45
11-2. Back up/import settings data....................................................................... 46
11-3. Software update .......................................................................................... 48
11-4. Software information ................................................................................... 51
12. Error code list .............................................................................52
12-1. M-NET errors .............................................................................................. 52
12-2. Errors between AE-200 and AE-50 (EW-50) .............................................. 54

Table of Contents

Other manuals for Mitsubishi Electric EW-50E

Preview: Service Handbook
Service Handbook108 pages
Preview: Instruction Book
Instruction Book192 pages

Questions and Answers

  • W
    Walter PowellAug 16, 2025
    How to fix a version combination error on a Mitsubishi Electric EW-50E?
    • J
      John BurchAug 16, 2025
      A version combination error on your Mitsubishi Electric Air Conditioner occurs because the apportioned electricity billing function of the AE-200 has been enabled, but the AE-50/EW-50 is a version that is not supported (version earlier than 7.23) by the apportioned electricity billing function. To resolve this, update the AE-50/EW-50 to Ver.7.23 or later. The equipment recovers from the error and then data collection resumes after a maximum of 30 minutes elapse. For how to update the software, refer to "VIII [1] AE-200/AE-50/EW-50 update procedure."
  • H
    haasrebeccaAug 19, 2025
    How to fix Mitsubishi Electric EW-50E Air Conditioner charge calculation results not displayed?
    • S
      Sarah CollinsAug 19, 2025
      If the charge calculation results are not displayed or printed from the Charge Calculation Tool of your Mitsubishi Electric Air Conditioner, it could be due to the printer being offline or the cable not being connected. Remove the cause of this problem, and print the calculation results from the Charge Calculation Tool again. Another possibility is that the printer connection settings have not been made. Also, check if the LAN between the AE-200 and the PC is properly connected and if the IP address setting of the AE-200 is correct. Ensure that the ID or password for the AE-200 is correct.
  • R
    rolsonAug 22, 2025
    What to do if the Mitsubishi Electric EW-50E Air Conditioner shows a “Charge” license not registered?
    • D
      dannyfischerAug 22, 2025
      If the Mitsubishi Electric Air Conditioner displays a 'Charge' license not registered error, it means that with the apportioned electricity billing function of the AE-200, the “Charge” license needs to be registered to all the AE-50/EW-50 under the control of the AE-200, but there is equipment to which it is not registered. To resolve this, register the “Charge” license to all the AE-50/EW-50 under the control of the AE-200.
  • B
    bgeorgeAug 25, 2025
    Why does my Mitsubishi Electric EW-50E display a system configuration change warning?
    • M
      Michele Rodriguez MDAug 26, 2025
      The Mitsubishi Electric Air Conditioner shows a system configuration change warning because the AE-200 and AE-50/EW-50 back up each other’s data with the apportioned electricity billing function of the AE-200, but the backup data no longer matches after the AE-200/AE-50/EW-50 was replaced. To fix this, perform an apportioned data restore for the new AE-200/AE-50/EW-50. Note that the equipment recovers from the error and then data collection resumes after a maximum of 30 minutes elapse. For how to restore apportioned data, refer to AE-200 Instruction Book (Apportioned Electricity Billing Function).
  • B
    ballardvanessaAug 30, 2025
    What to do if data is not printed automatically from Mitsubishi Electric EW-50E?
    • I
      iperryAug 30, 2025
      If data is not printed out automatically or the CSV file is not output automatically from your Mitsubishi Electric Air Conditioner, it might be because the PC is switched off or the printer is offline, or the cable is not connected. As a temporary procedure, carry out a specified date calculation and remove the cause of this problem for the next automatic output. The printer connection settings may also not have been made. Another reason could be a communication error with AE-200 is occurring. It is also possible that “Automatic output” settings have not been made on the Charge Calculation Tool.
  • L
    Lauren HernandezSep 4, 2025
    What to do if 'Failed to connect to AE controllers' appears on Mitsubishi Electric Control Systems?
    • L
      Lucas SandersSep 4, 2025
      If the message 'Failed to connect to AE controllers' appears when accessing the Mitsubishi Electric Control Systems Integrated Centralized Control Web and no login window appears, it could be due to a few reasons: there might be a communication error with the login destination centralized controller, more than 50 users might be accessing the web interface, or the login destination centralized controller is still starting up. To resolve this, first, check the LAN connection. If that's not the issue, reduce the number of users accessing the Integrated Centralized Control Web to 50 or less. If the problem persists, wait for approximately 5 minutes to allow the startup process to complete before attempting to access the web interface again.
  • D
    Diana RomanSep 7, 2025
    Why are air conditioning units not displayed on Mitsubishi Electric Control Systems?
    • K
      kathryn15Sep 7, 2025
      If the air conditioning units that can be monitored and operated are not displayed in your Mitsubishi Electric Control Systems, it could be due to a communication error with the AE-200/AE-50/EW-50 or incorrect integrated centralized control settings. First, check that the LAN connection is correctly connected. Then, use the Initial Setting Tool to monitor the settings and ensure that the centralized controllers are correctly set for control.
  • J
    Jason PotterSep 10, 2025
    How to fix broken layout in Mitsubishi Electric Control Systems?
    • D
      David JohnsonSep 10, 2025
      If the layout in Integrated Centralized Control Web is broken or the buttons do not work on your Mitsubishi Electric Control Systems, it might be because the software version of AE-200/AE-50/EW-50 was updated, or the settings were changed using the Initial Setting Tool. To fix this, delete the history of the browser you are using.
  • J
    John KentSep 12, 2025
    What to do if login screen does not open for Mitsubishi Electric Control Systems?
    • B
      beckymcdowellSep 12, 2025
      If the login screen does not open for your Mitsubishi Electric Control Systems, it might be because the URL entered in the browser is incorrect. Check that the IP address of the AE-200/EW-50, which is the login destination for Integrated Centralized Control Web, is correct. Also, verify the setting using the Initial Setting Tool.
  • G
    gcummingsNov 26, 2025
    Why errors are displayed on the [Malfunction] screen of Mitsubishi Electric EW-50E Air Conditioner?
    • C
      cwelchNov 26, 2025
      If errors are displayed on the [Malfunction] screen or the error log is displayed on the [Unit Error] screen of your Mitsubishi Electric Air Conditioner, it could be due to several reasons. It might be that the versions of the AE-200/AE-50/EW-50 are not appropriate for an apportioned electricity billing function. Check the versions of the AE-200 and AE-50/EW-50. Another cause may be that apportioned data have not been restored after the AE-200/AE-50/EW-50 was replaced, or the system configuration was changed. Restore the apportioned data. Also, verify that the license has been properly registered to each AE-200 and AE-50/EW-50. Communication errors between the AE-200 and AE-50/EW-50 could also be the reason, so check for proper LAN connection between the AE-50 and EW-50. Finally, check if ...

Summary

Safety Precautions

General Precautions

General safety guidelines for handling the controller, avoiding hazards, and proper use.

Precautions for Unit Installation

Safety measures specific to installing the controller unit to prevent accidents.

Precautions for Electrical Wiring

Safety guidelines for electrical connections and wiring to prevent shocks and fires.

Precautions for Relocating or Repairing the Unit

Safety advice for moving or servicing the controller to prevent injury or damage.

Additional Precautions

Further safety recommendations and considerations for controller operation.

Introduction

Part Names

Identification and description of the EW-50 controller's physical components and ports.

Package Contents

Specifications

Product Specifications

Technical details including power supply, ambient conditions, dimensions, and weight.

External Dimensions

Visual representation and measurements of the EW-50 controller's physical size.

Product Features

Overview of available functions and settings accessible via the Web browser interface.

System Configuration

System Restrictions

Rules and limitations for setting up EW-50 within a system configuration.

M-NET Power Feeding Coefficient

Details on power feeding requirements based on M-NET equipment coefficients.

System Configuration Example

Diagrams illustrating typical system setups with EW-50 and connected devices.

Number of Connectable Units

Maximum units that can be connected in an AE-200/AE-50/EW-50 M-NET system.

Setting M-NET Address for Various Devices

Guidelines for assigning M-NET addresses to different devices in the system.

Installation

Items Not Included

List of necessary components not supplied with the EW-50 for installation.

Items Sold Separately

Optional accessories required for specific functions or installation methods.

M-NET Transmission Cable Length

Specifications for M-NET cable length to ensure proper signal transmission.

Installation Space

Required clearance and space for installing the EW-50 controller in a control box.

Installation Procedures

Step-by-step instructions for mounting the EW-50 using L-fittings or DIN rail.

Wiring Connections

Removing;Reinstalling the Service Cover

Instructions for removing and reattaching the EW-50's service cover.

Connecting AC Power Cables and M-NET Transmission Cables

Procedures for wiring power supply and M-NET transmission cables to the unit.

Connecting the LAN Cable

Instructions for establishing a LAN network connection to the EW-50.

Confirming the LAN Transmission Delay Time

Steps to verify LAN connection speed and latency for proper communication.

Initial Settings

Logging in to the Web Browser for Initial Settings

Accessing the controller's web interface for initial configuration.

Initial Settings on the Web Browser

Overview of essential initial settings configurable via the web interface.

Quick IP Address Setting

Method for rapidly setting the IP address using the rotary switch SW1.

Network Settings on the Web Browser

Configuring network parameters like IP, subnet mask, and gateway addresses.

Test Run

Collective Operation ON;OFF

Procedure for performing a collective test run of connected units to verify operation.

External Input;Output

External Signal Input;Output Function

How to use external contact signals for collective control and monitoring.

Pulse Signal Input Function

Utilizing pulse signals from metering devices for data acquisition.

Maintenance

Inspection and Maintenance

Recommendations for periodic inspection and component replacement cycles.

Back up;Import Settings Data

Procedures for backing up and restoring EW-50 configuration data.

Software Update

Steps to update the EW-50's firmware via a web browser.

Software Information

Accessing details about the open-source software used in the EW-50.

Error Code List

M-NET Errors

List and definitions of M-NET communication errors for the system.

Errors between AE-200 and AE-50 (EW-50)

Specific error codes related to communication between controllers.

Mitsubishi Electric EW-50E Specifications

General IconGeneral
BrandMitsubishi Electric
ModelEW-50E
CategoryAir Conditioner
LanguageEnglish

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