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Mitsubishi Electric EMU4-CNT-MB User Manual

Energy measuring unit control unit / control unit engineering tool
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Energy Measuring Unit Control Unit
Control Unit Engineering Tool
MODEL
EMU4-CNT-MB
EMU4-KNET
User's Manual (Details)
● Before operating the instrument, you should first read thoroughly this operation manual for
safe operation and optimized performance of the product.
Deliver this user's manual to the end user.

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Summary of Contents for Mitsubishi Electric EMU4-CNT-MB

  • Page 1 Energy Measuring Unit Control Unit Control Unit Engineering Tool MODEL EMU4-CNT-MB EMU4-KNET User’s Manual (Details) ● Before operating the instrument, you should first read thoroughly this operation manual for safe operation and optimized performance of the product. Deliver this user’s manual to the end user.

  • Page 2: Introduction

    Introduction Thank you for purchasing our Energy Measuring Unit, EcoMonitorPlus.  This manual provides some information on how to set up and operate this product. Carefully read the manual to properly use the product. Especially, when installing it, be sure to read the chapter of Safety Precautions to properly handle it.

  • Page 3: Features

    Features ● This product, EcoMonitorPlus, is a unit with building block method. The basic unit in combination with one option unit and/or maximum three extension units can provide various applications. Option unit (Max 1 unit) Basic unit Extension unit (Max 3 units) ●...

  • Page 4: Table Of Contents

    Table of Contents Introduction ................................................1 Features ................................................2 Table of Contents .............................................. 3 1. Safety Precautions ............................................5 1.1 Precautions for Operating Environment and Conditions ............................. 5 1.2 Precautions for Preparation before Use .................................... 5 1.3 Precautions for Installation and Wiring ....................................5 1.4 Precautions for Use .............................................
  • Page 5 13. Specifications ............................................124 13.1 Specifications of the Control Unit ....................................124 13.2 Specifications of MODBUS Communication ................................125 13.3 Specifications of Ethernet Communication ................................125 13.4 Specifications of Control Unit Engineering Tool ..............................126 13.5 Version History of Control Unit Engineering Tool ..............................126 13.6 Specifications of Lithium Battery ....................................

  • Page 6: Safety Precautions

    1. Safety Precautions This product shall be used in conditions; i) where any problem, fault or failure occurring in this product, if any, shall not lead to any major or serious accident; ii) Confirmed that the laws and regulations related to the equipment to be controlled are satisfied iii) where the backup and fail-safe function are systematically or automatically provided outside of this product for the case of any problem, fault or failure occurring in this product.
  • Page 7 Caution <Precautions for installation and wiring work> A qualified electrician must install and wire this unit properly for safety. ・ Secure a space of 100 mm or more around this unit in all directions (except the back side). ・ Take care not to enter any foreign objects such as chips or wire pieces into this unit when tapping or wiring. ・...

  • Page 8: Precautions For Use

    1.4 Precautions for Use  This unit cannot be used for deal and proof of electric energy measurement stipulated in the measurement law.  While some settings are written to this unit with Control Unit Engineering Tool (Model: EMU4-KNET), if power outage occurs, the setting will not be correctly set up.

  • Page 9: Precautions For Maintenance

    1.5 Precautions for Maintenance  Use a soft dry cloth to wipe dirt off the surface of this unit. Do not leave a chemical cloth in contact with the unit for a long time or do not wipe it with thinner or benzene. ...

  • Page 10: System Configuration

    ・The range set by Control Unit Engineering Tool or by small type display unit is as follows: Unit Model Control Unit Engineering Tool Small type display unit 〇 Control unit EMU4-CNT-MB 〇 Extension unit EMU4-A2 〇 EMU4-VA2 〇 EMU4-AX4 〇...

  • Page 11: Basic Configuration

    3.2 Basic Configuration Circuit measurement Contact input Analog input (Current, Voltage, etc.) (Pulse, Contact) Production Control Unit Engineering Tool Flowmeter Current sensor equipment (EMU4-KNET) The setting for control unit Measuring The control status/ Measurement value monitoring Ethernet <Settable control type> ・Interlocking control ・Schedule control The setting for extension unit...

  • Page 12: Configuration With Combination Of Multiple Control Units (1 System)

    3.3 Configuration with Combination of Multiple Control Units (1 System) Circuit measurement Contact input (Current, Voltage, etc.) (Pulse, Contact) Analog input Control Unit Engineering Tool (EMU4-KNET) <Max connectable number of child terminals by Control unit (Parent terminal) control type> (MODBUS RTU Master station) Control type Max connectable number Ethernet...

  • Page 13: Configuration With Combination Of Multiple Control Units (2 Systems Or More)

    3.4 Configuration with Combination of Multiple Control Units (2 Systems or more) Control Unit Engineering Tool can manage Max 20 systems per project. Ethernet <Max connectable number of child terminals by control type> Control type Max connectable number Interlocking 31 units Control Unit Compressor 3 units *...

  • Page 14: Connection With Superior Monitoring Systems Via Modbus Rtu Communication

    3.5 Connection with Superior Monitoring Systems via MODBUS RTU Communication Control Unit Engineering Tool ∙Collect control information can manage Max 20 systems from the control unit per project. ∙Control the contacts of the Control Unit control unit Superior monitoring system Engineering Tool (Programmable controller, etc.) (EMU4-KNET)

  • Page 15: Connection With Superior Monitoring Systems Via Other Than Modbus Rtu Communication

    3.6 Connection with Superior Monitoring Systems via other than MODBUS RTU Communication Control Unit Engineering Tool ∙Collect control information can manage Max 20 systems from the control unit per project. ∙Control the contacts of the Control Unit control unit Engineering Tool Superior monitoring system (EMU4-KNET) (Programmable controller, etc.)

  • Page 16: Control Unit

    4. Control Unit 4.1 Name and Function of Each Part Name of Each Part The front side The bottom side Connector for small type Frame grounding (FG) display unit terminal Connector for software Connect the small type Perform Type D grounding. communication display unit connector.
  • Page 17 LED Indicator and Function The following table shows a list of LED names and functions. Name Display color Function Status RUN LED Indicate the operating status of this unit. ON: In normal operation OFF: Power off or hardware trouble MASTER LED Indicate the Master station or Slave station of MODBUS ON: Master station RTU communication.

  • Page 18: How To Install/Detach The Control Unit

    4.2 How to Install/Detach the Control Unit *The following illustrates an example of using a unit of EMU4-HM1-MB. A qualified electrician must install and wire this unit properly for safety. Caution Installing on IEC Rail ●Installing ●Applicable IEC rail ●Detaching ①Pull the IEC rail stopper of this unit downward.

  • Page 19: How To Wire The Control Unit

    4.3 How to Wire the Control Unit You will wire this unit according to the following examples. For the wiring of other units such as an extension unit or option unit, refer to the user’s manual of each product. Precautions for Wiring ・In order to prevent the invasion of noise, the transmission signal lines and output signal lines must not be placed close to or bound together with the power lines or high voltage lines.
  • Page 20 ・Connection with MODBUS module (QJ71MB91, QJ71C24N) MODBUS module EMU4-CNT-MB EMU4-CNT-MB EMU4-CNT-MB (QJ71MB91) 485+ 485+ 485+ 485- 485- 485- Terminating resistor Note: Connect 110 ohm termination resistors on the MODBUS module (QJ71MB91, QJ71C24N) side. For details, refer to MELSEC Q series MODBUS Interface Module User's Manual (QJ71MB91) and Q Corresponding Serial Communication Module User's Manual (Basic).
  • Page 21 ・Connection with MELSEC iQ-R Serial Communication Module (RJ71C24, RJ71C24-R4) Serial communication EMU4-CNT-MB EMU4-CNT-MB EMU4-CNT-MB module (RJ71C24) 485+ 485+ 485+ 485- 485- 485- Terminating resistor Note: Connect 110 ohm termination resistors on the MELSEC iQ-R programmable controller side. For details, refer to Before Using the Product for RJ71C24 and RJ71C24-R4 (Ref.NO. BCN-P59999-0075-C).
  • Page 22 Wiring for Interlocking Control Fuse 0.5 A Contact output 1 Equipment A EMU4-CNT-MB Contact output 2 Equipment B Contact output 3 Equipment C Equipment D Analog output *Connect to either of the output-side terminals: current output of AY (A) and COM AY (A) or voltage output of AY (V) and COM AY (V) depending on the application.
  • Page 23 Wiring for Compressor Control Fuse 0.5 A Compressor Contact output 1 Load/ EMU4-CNT-MB Unload Contact output 2 Operating Contact output 3 Stop The connection destinations of each contact output of this control unit and each control contact (load/unload, operating, or stop) of a compressor differ depending on the settings.
  • Page 24 Wiring for Schedule Control Fuse 0.5 A Contact output 1 Equipment A EMU4-CNT-MB Contact output 2 Equipment B Contact output 3 Equipment C RS-485（MODBUS RTU） *To comply with the UL standards, fuses must be used. For the fuses, use P405H produced by Daito Communication Apparatus or its equivalent.
  • Page 25 Connecting with Control Unit Engineering Tool This subsection describes how to connect the control unit with Control Unit Engineering Tool. The following operation illustrates an example of control unit’s IP address with the default settings (IP address: 192.168.3.11, Subnet mask: 255.255.255.0). Connect the computer where Control Unit Engineering Tool is installed to the control unit with a LAN cable.
  • Page 26 Click Local area connection and then click the Property button. Select Internet Protocol Version 4 (TCP/IPv4) and then click the Property button. *If there is no registration in the list, add it. For details, refer to the user’s manual about operating system.
  • Page 27 Select Use the following address and enter the IP address and subnet mask. *Write down the setting values before change because they are required when the computer’s IP address is restored to the original one. The network address parts of the IP address must be the same values as those of the control unit. The host address part of the IP address must be different values from that of the control unit.
  • Page 28 Connecting/Replacing the Lithium Battery Do not connect or replace the lithium battery under live line conditions. Otherwise, an electric shock, a Caution product failure, or a fire could be caused. ■To connect the lithium battery (when purchasing) ①Slide the battery cover downward to open it. ②Connect the lithium battery connector to this unit.

  • Page 29: Control Unit Engineering Tool

    5. Control Unit Engineering Tool This chapter describes the installation of Control Unit Engineering Tool, its operating environment, and basic operation. *Control Unit Engineering Tool can be downloaded for free from the Mitsubishi FA Global site. The site URL is described on the back cover.
  • Page 30 The following window appears. When installing to the default destination folder, click the Next button to start the installation. *The default destination is C¥Mitsubishi¥Emu4Knet¥. When the installation is completed, the following window appears. Click the Finish button to close the window. Uninstalling Control Unit Engineering Tool When Control Unit Engineering Tool is no longer required, it can be easily uninstalled from your computer according to the following procedure.

  • Page 31: Precautions For Operation

    The following confirmation message appears. Click the Yes button to start the uninstallation. (4) When the uninstallation is completed, the following window appears. Click the Finish button to close the window. 5.2 Precautions for Operation While Control Unit Engineering Tool is being operated, it is in communication with the corresponding control unit. During the communication, never turn off the power of the control unit, restart it, remove the LAN cables, or operate the small type display unit.
  • Page 32 Changing the Display Language You can change the display language of Control Unit Engineering Tool. Click the button. The following window appears. Select a language from the pull down menu. Click the OK button. The above window is closed and the following window is displayed in your selected language.
  • Page 33 Displaying the Version information You can check the version of Control Unit Engineering Tool. Click the button. The version information is displayed. Click the OK button to close the window.

  • Page 34: Screen Transition

    5.4 Screen Transition The following illustrates the screen transition diagram of the software. To return to the previous window screen, click the × button at the upper right of the window. Startup Project management Open the project System management Select the system Measurement value monitoring Control monitoring Setting menu...
  • Page 35 Select a destination to save a project. *The selected folder name becomes the project name. You should create a new folder under the user’s document folder (C:¥Users¥***¥Documents) to avoid mixing with other data or files. (3) When the destination is selected, the created project is opened. The system management window appears. Opening the Project You will open an existing project.

  • Page 36: Procedure For Setup/Operation

    6. Procedure for Setup/Operation The following shows the overall flow on setup or operation. *To use this unit, it is required to set it up with Control Unit Engineering Tool (EMU4-KNET). The Tool can be downloaded for free from the Mitsubishi FA Global site. The site URL is described on the back cover.
  • Page 37 Continued from Operation of Control unit Operation of Control Unit Engineering Tool the previous page If an extension unit is connected to the parent terminal, finish the connection and the wiring of the extension unit side by this point. Perform the wiring of MODBUS RTU communication for every control unit in the system.

  • Page 38: Basic Operation

    6.2 Basic Operation The following table describes the procedure of each operation. Reference Item Details 6.2.1 Checking the control status How to check the present control status of each control unit. 6.2.2 Manually operating the How to manually control the contact output/analog output of the control contact output/analog unit.
  • Page 39 Manually Operating the Contact Output/Analog Output Operation of Control unit Operation of Control Unit Engineering Tool Start Connect the parent terminal of control unit and the computer with a LAN cable. Change the output state of contact/analog When the output state of contact/analog output.
  • Page 40 Changing the Control Setting Operation of Control unit Operation of Control Unit Engineering Tool Start Connect the parent terminal of control unit When the control operation state is changed and the computer with a LAN cable. to STOP, the output state is as follows. Control method Output state Interlocking control...
  • Page 41 Changing the Control Type Operation of Control unit Operation of Control Unit Engineering Tool Start Connect the parent terminal of control unit When the control operation state is changed and the computer with a LAN cable. to STOP, the output state is as follows. Control method Output state Interlocking control...
  • Page 42 Continued from Operation of Control unit Operation of Control Unit Engineering Tool the previous page Perform the wiring of MODBUS RTU communication for every control unit in the system. Check the wiring connection. Refer to 7.11 Check of Connection. Is the connection check result normal? If the result is not normal, check the connection result, Set the parent terminal clock to the network settings, or communication lines to identify the...
  • Page 43 Changing the IP Address Operation of Control unit Operation of Control Unit Engineering Tool Start Make a one-to-one connection between the target control unit and the computer When the control operation state is changed with a LAN cable. to STOP, the output state is as follows. Control method Output state Interlocking control...
  • Page 44 Setting the Clock Operation of Control unit Operation of Control Unit Engineering Tool Start Connect the parent terminal of control unit When the control operation state is changed and the computer with a LAN cable. to STOP, the output state is as follows. Control method Output state Interlocking control...
  • Page 45 Acquiring the Event Log (All Logs) Operation of Control unit Operation of Control Unit Engineering Tool Start Connect the parent terminal of control unit When the control operation state is changed and the computer with a LAN cable. to STOP, the output state is as follows. Control method Output state Interlocking control...
  • Page 46 Updating the Firmware Operation of Control unit Operation of Control Unit Engineering Tool Start Connect the parent terminal of control unit When the control operation state is changed and the computer with a LAN cable. to STOP, the output state is as follows. Control method Output state Interlocking control...
  • Page 47 Changing the Control Setting with Updating the Firmware Operation of Control Unit Engineering Tool Operation of Control unit Start Connect the parent terminal of control unit When the control operation state is changed and the computer with a LAN cable. to STOP, the output state is as follows.

  • Page 48: Operation For Replacing/Removing The Control Unit

    6.3 Operation for Replacing/Removing the Control Unit Replacing the Control Unit due to its Failure Operation of Control unit Operation of Control Unit Engineering Tool Start Connect the parent terminal of control unit When the control operation state is changed and the computer with a LAN cable.
  • Page 49 Continued from Operation of Control unit Operation of Control Unit Engineering Tool the previous page Connect the parent terminal and the computer with a LAN cable. If an extension unit is connected to the parent terminal, finish the connection and the wiring of the extension unit side by this point.
  • Page 50 Removing the Control Unit Operation of Control unit Operation of Control Unit Engineering Tool Start Connect the parent terminal of control unit When the control operation state is changed and the computer with a LAN cable. to STOP, the output state is as follows. Control method Output state Interlocking control...

  • Page 51: Setting Operation

    7. Setting Operation The control unit settings are conducted from Control Unit Engineering Tool. This chapter describes the system management window and setting menu related to settings about control. 7.1 System Management On the following window, you will register, change, or delete the system. Each operation of setting, monitoring, and maintenance is executed on a registered system basis.
  • Page 52 Enter a name to register in the system name field and then click the Register button. *The following characters are not available: ¥ / : * ? ” < > | , *The leading whitespace is not considered as characters. Register the system name to the selected ID or change the selected ID system name by entering an arbitrary name.

  • Page 53: Setting Menu

    Click the Delete button. The following confirmation message appears. Click the Yes button. The system is deleted. 7.2 Setting Menu This section describes the setting menu. On the following window, click the appropriate button to move to each setting window. 7.3 Verification of Settings 7.4 Read of Settings 7.5 Setting of Terminals...

  • Page 54: Verification Of Settings

    7.3 Verification of Settings This function verifies whether the setting of Control Unit Engineering Tool is met with the one written to the parent terminal of control unit. It is useful when the written setting is lost or when you confirm the present setting before changing it. *This function is available when the parent terminal is in the STOP status of control operation.

  • Page 55: Read Of Settings

    7.4 Read of Settings This function reads the settings of the parent terminal of control unit. It is useful when the verification result is mismatch at 7.3 Verification of Settings or when the backup is executed for settings written to the parent terminal. *This function is available when the parent terminal is in the STOP status of control operation.

  • Page 56: Setting Of Terminals

    7.5 Setting of Terminals You will set the settings for the terminal units that constitute the system. Register the settings corresponding to the terminal to be actually used. Adding the Child Terminal of Control Unit Click the Add button. The child terminal is added to the terminal list.
  • Page 57 Deleting the Child Terminal of Control Unit Select a child terminal to delete and then click the Delete button. The selected child terminal is deleted. *If some terminal ID numbers exists that are larger than the deleted terminal ID in the child terminals, the ID numbers will be changed to assign consecutive numbers to every ID.
  • Page 58 Registering/Changing Information on the Control Unit You will register or change the terminal information on the control unit (parent/child terminal). Register each item. *The registration information differs depending on the terminal type (parent/child terminal) or the existence of child terminals in the system. ■For the parent terminal without any child terminal in the system ■For the parent terminal with some child terminals in the system ■For any child terminals...
  • Page 59 ⭘: Configurable ×: No settings required -: No setting items Parent terminal Child Without With Item Details child child terminal terminals terminals Unit configuration Register the model and name of the terminal units that constitute the system. Model name Only when an extension unit is used, set this item. Select the extension unit model from the pull-down menu.

  • Page 60: Setting Of Control Method

    7.6 Setting of Control Method You will set the control type of the system. Click the Set control method button in the setting menu. The current control type The following message appears. Select a control type from the pull-down menu and then click the Register button. <Control type>...

  • Page 61: Interlocking Control

    7.7 Interlocking Control Interlocking control is a control type that an ON/OFF contact output or an analog output value varies according to a measurement value measured by the extension unit. The maximum output number of contact output/analog output varies depending on the number of control units in the system. Output Number of outputs Maximum number of outputs...
  • Page 62 <Control timing delay setting> For the contact output, setting the delay time for ON and delay time for OFF enables to delay the control execution timing. When the control unit collects the next measurement value and ends a determination by the conditional expression, if the determination are different from a scheduled output, a new output determination will be employed.
  • Page 63 <Analog output control> The analog output control function calculates the analog output value corresponding to a measurement value by setting the upper/lower limit of the measurement value, and controls the output. In addition, setting the upper/lower limit value of analog output enables to change the output range. The measurement value is selected from the measurement items in Energy Measuring Unit Extension model for same voltage system (Model: EMU4-A2), Energy Measuring Unit Extension model for different voltage system (Model: EMU4- VA2), or Energy Measuring Unit Extension model for analog input (Model: EMU4-AX4) that is connected to the control unit.
  • Page 64 Registering/Changing the Interlocking Control Setting (Contact Output) Select a terminal’s output to set from the left table on the window. The selected field is displayed in blue. Enter an output name. A maximum of 30 characters are allowed in the input field. Register a conditional expression to set the contact to ON.
  • Page 65 <How to set the measurement value comparison> （a） Select Comparison of measurement value. （b） Click the ... button. （c） The following window appears. Select a unit (circuit) and its measurement item in that order to set a standard measuring point for conditional expression.
  • Page 66 （f） A value for comparison will be set for the standard measuring point. Select constant or measurement item from the pull-down menu. For constant, enter a value to the right. For measurement item, select a measuring point in the same way as (b) to (d) above. ■For constant ■For measurement item （g）...
  • Page 67 （d） Click the OK button to determine the standard measuring point. Return to the conditional expression setting window. （e） Select ON or OFF from the pull-down menu. （f） Click the OK button to determine the settings and close the window. When multiple conditional expressions are set at (3) above, set the combination of each conditional expression with the radio button.
  • Page 68 Registering/Changing the Interlocking Control Setting (Analog Output) Select a terminal’s output to set from the left table on the window. The selected field is displayed in blue. Enter an output name. A maximum of 30 characters are allowed in the input field. Select an analog output range from the pull-down menu.
  • Page 69 The following window appears. Select a unit (circuit) and its measurement item in that order to set a standard measuring point for conditional expression. When EMU4-A2 or EMU4-VA2 is set, select the circuit. *The measurement items measuring integrated values are not selectable. *Depending on the wiring or settings, some measurement items not measured may be displayed.
  • Page 70 Set the analog output conditions. Refer to How to determine the analog output conditions in the next page to set a value or unit of each item. ① ② ③ ⑤ ⑥ ④ ⑧ ⑦ Setting item Details ① Gradient Select a gradient of correlation between a measurement value and an analog output value.
  • Page 71 How to determine the analog output condition The following illustrates an example of how to determine the analog output conditions. ・Output range: 4 to 20 mA ・Gradient: positive First, determine the analog output range with a measurement value measured by the extension unit. The example here is a temperature for measurement value, and 50℃...
  • Page 72 Deleting the Interlocking Control Setting You will delete the registered settings for contact/analog output. Select a terminal’s output to delete from the left table on the window. The selected field is displayed in blue. Click the Delete button. The following confirmation message appears. Click the Yes button to delete the selected output setting.

  • Page 73: Compressor Control

    7.8 Compressor Control Compressor control is a function that executes energy saving operation by switching the operation modes of a compressor (loaded operating mode, unloaded operating mode, and stop mode) in order to optimize the pressure of piping. One control unit in the system controls one compressor’s operation mode. The number of controllable compressors is two to four units.
  • Page 74 <Details on the control with the calendar setting> This calendar function requires to set the valid and invalid time periods of control in the day. For the valid control, it starts all the compressors with the loaded operating mode, and then executes the control by the upper/lower limit monitoring.
  • Page 75 <Details on the control by the upper/lower limit monitoring> This function sets the upper-upper limit, upper limit, lower limit, and lower-lower limit values in advance. According to the result of the upper/lower limit monitoring of a measurement value, the operation mode of a compressor is controlled. The control unit collects a measurement value from the extension unit every minute, and executes the upper/lower limit monitoring of the measurement value.
  • Page 76 ■Control target compressor and priority There are four types of upper/lower limit monitoring: the upper-upper limit monitoring, the upper limit monitoring, the lower- lower limit monitoring, and the lower limit monitoring. Each monitoring manages the control target compressor. In some controllable compressors, a compressor with higher priority is controlled.
  • Page 77 ■Upper limit value While a pressure value exceeds the upper limit value, the following control operation is repeated. *The adjustment operation time is a delay time when a compressor is switched from the unloaded operating mode to the stop mode. Check whether some compressors with the loaded operating mode exist.
  • Page 78 ■Upper-upper limit value When a pressure value exceeds the upper-upper limit value, the next control operation is executed once. After that, until the pressure value drops to the upper limit value or less, the same operation as ■Upper limit value is repeated. After dropping to the upper-upper limit value or less, if the pressure value exceeds the upper-upper limit value again, the control will be executed again.
  • Page 79 ■Lower limit value While a pressure value is below the lower limit value, the following control operation is repeated. *The adjustment operation time is a delay time when a compressor is switched from the stop mode to the loaded operating mode.
  • Page 80 ■Lower-lower limit value When a pressure value drops below the lower-lower limit value, the next control operation is executed once. After that, until the pressure value rises to the lower limit value or more, the same operation as ■Lower limit value is repeated. When the pressure value becomes the lower-lower limit value or more once and then drops below the lower-lower limit value again, the control is executed again.
  • Page 81 <Example of action when the pressure value is both above the upper limit value and below the lower limit value> <Example of action> Adjustment operation time Adjustment operation time: 1 minute Start delay time Start delay time: 1 minute Measurement value for determination Control target at 59 min...
  • Page 82 Registering the Compressor Setting You will register the settings for compressors to be controlled and for upper/lower limit monitoring. Click the compressor tab on the top of the window. The following window appears. Set the number of compressors to be controlled. Clicking the Add button adds a new compressor to the bottom of the table.
  • Page 83 Select a compressor for setup and then enter each item. After the input, click the Apply button to save the settings. Item Details Name Enter a name to register the compressor. A maximum of 30 characters are allowed in the input field. Contact assignment Set the terminal and contacts to control the compressor.
  • Page 84 Set the control delay time. Item Details Start delay time A delay time when the compressor is switched from the stop mode to the loaded operating mode The setting range: 0 to 30 minutes Adjustment operation time A delay time when the compressor is switched from the unloaded operating mode to the stop mode or from the stop mode to the loaded operating mode The setting range: 0 to 30 minutes *For details on the start delay time and adjustment operation time, refer to...
  • Page 85 The following window appears. Select a unit and its measurement item in that order to set the standard measuring point for conditional expression. *A scaling value of the analog input unit (EMU4-AX4) only is available. Click the OK button to determine the standard measuring point. Return to the compressor control window.
  • Page 86 Registering/Changing the Day Pattern You will set the valid and invalid time periods of compressor control in the day. Click the day pattern tab on the top of the window. The following window appears. Set the day pattern number and name. Item Details Day pattern number...
  • Page 87 Set the valid and invalid time periods of compressor control in the day. Valid/Invalid control Time Item Details Time Set the time to switch the valid/invalid status for compressor control. It is possible to set by the minute. After selecting an hour or minute, enter a number or click the ▲ or ▼ button to set. Including 0:00 of the first field, a maximum of 24 times can be set.
  • Page 88 Deleting the Day Pattern Click the day pattern tab on the top of the window. The following window appears. Select a day pattern number to delete and then click the Delete button. The following confirmation message appears. Click the Yes button to delete the day pattern.
  • Page 89 Registering/Changing/Deleting the Calendar Setting a day pattern to each day provides the creation of a week pattern. With the created week pattern, the compressor control is executed for two years from an arbitrary date. If there is a day when the control is executed different from the week pattern, setting a day pattern to a specific day will provide a control execution by the set day pattern for the specific day.
  • Page 90 Set each item. Item Details Validity period Indicate the validity time period for compressor control execution. The validity period is for two years from a start date. The start date can be changed by clicking the Change start date button. Week pattern *1 Set the day pattern for each day.
  • Page 91 Click the Register button to save the settings.

  • Page 92: Schedule Control

    7.9 Schedule Control Schedule control is a control method that switches an ON/OFF contact output when the clock time of the control unit becomes an arbitrary time by setting the ON and OFF time periods of contact output in the day in advance. This schedule control requires the settings for two years, of which the ON and OFF time periods are set for each contact output.
  • Page 93 The settings will be configured in the following way: ① Create a day pattern, a time schedule where the ON and OFF time periods of contact output are set in the day. The number of day patterns for registration varies depending on the number of registered terminals. Number of registered terminals Number of day patterns for registration 1 to 5...
  • Page 94 Registering/Changing the Day Pattern You will set the ON and OFF time periods of contact output in the day. Click the day pattern tab on the top of the window. The following window appears. Set the day pattern number and name. Item Details Day pattern...
  • Page 95 Select a terminal to set the day pattern. The selected terminal is displayed in blue. Enter an output name of each contact output. A maximum of 30 characters are allowed in the input field.
  • Page 96 (5) Set the ON/OFF time of contact output in the day for each contact output. Control is valid/invalid. Time Item Details Time Set the time to switch the ON/OFF contact output. It is possible to set by the minute. After selecting an hour or minute, enter a number or click the ▲ or ▼ button to set. Including 0:00 of the first field, a maximum of 24 times can be set.
  • Page 97 Regardless of the setting order, the control is executed from the earlier time. *After completing the settings, by closing the window once and opening again, the settings are automatically sorted in chronological order. <Example> At registration After redisplay (After sorting) Click the Register button to save the settings.
  • Page 98 Deleting the Day Pattern There are two ways on how to delete the day pattern: deleting by the terminal and deleting all the settings registered to the day pattern number. ■How to delete the settings of the terminal of a specific day pattern Select the terminal of a day pattern to delete and then click the Delete button on the bottom left of the window.
  • Page 99 ■How to delete all the settings registered to a day pattern number Select a day pattern number to delete and then click the Delete button to the right of the day pattern field. The following message appears. Click the Yes button.
  • Page 100 Registering/Changing/Deleting the Calendar Setting a day pattern to each day provides the creation of a week pattern. With the created week pattern, the ON/OFF contact output is controlled for two years from an arbitrary date. If there is a day when the control is executed different from the week pattern, setting a day pattern to a specific day will provide a control execution by the set day pattern for the specific day.
  • Page 101 Item Details Validity period Indicate the validity time period for schedule control execution. The validity period is for two years from a start date. The start date can be changed by clicking the Change start date button. Week pattern *1 Set the day pattern for each day.

  • Page 102: Write Of Network Information

    7.10 Write of Network Information This function is used when the network information (Ethernet or MODBUS RTU communication) of the control unit is confirmed or changed. Make a one-to-one connection between the target terminal unit and the computer via Ethernet. After the connection, the write/read of network information is executed.
  • Page 103 Reading Network Information (1) Select a terminal of the read target from the left table. The selected terminal is displayed in blue. In the Value to write columns of the table, the network information registered at the terminal setting is displayed. Network information registered at the terminal setting Make a one-to-one connection between the computer and the target terminal with a LAN cable.

  • Page 104: Check Of Connection

    7.11 Check of Connection Communicating with the terminals in the system enables to check the MODBUS RTU communication connection with each control unit in the system. Connect the computer and the parent terminal of control unit with a LAN cable. In addition, connect between each control unit in the system via MODBUS RTU communication.

  • Page 105: Write Of Settings

    7.12 Write of Settings This function writes the control settings to the parent terminal of control unit. *This function is available when the parent terminal is in the STOP status of control operation. If you attempt to execute it in the RUN status, a message will appear to ask whether to execute after the status is changed to STOP.
  • Page 106 Click the Reading button to check the current control operation status. After the read has been completed, the current control operation status is displayed on the window. Click the RUN or STOP button to change the control operation status. After the status change has been completed, the following message appears. Click the OK button to close the message.

  • Page 107: Measurement Value Monitoring

    8. Measurement Value Monitoring This chapter describes measurement value monitoring in Control Unit Engineering Tool. This function monitors some values measured by the extension unit. The extension unit (circuit) is selected and its measurement values are monitored and displayed. The measurement values are updated every one minute. *It is impossible to monitor any measurement items measuring integrated values.

  • Page 108: Control Monitoring

    9. Control Monitoring This chapter describes control monitoring in Control Unit Engineering Tool. This function displays the control status on the selected system or manually controls any output. *For the control type of non-analog output, no unit of analog output value is displayed. 9.1 Control Status Monitoring You will monitor the control status of each output.

  • Page 109: Manual Control Of Output

    9.2 Manual Control of output You will manually control each output. *During the monitoring, the manual control is impossible. *When the control type is compressor control or schedule control, there is no analog output function. Do not manually control any analog output. ・This function is available when the parent terminal is in the STOP status of control operation.
  • Page 110 After the manual control execution has been completed, the following message appears for each output. Click the OK button to close the message. <For contact output> <For analog output>...

  • Page 111: Maintenance Menu (With Control Unit Engineering Tool)

    10. Maintenance Menu (with Control Unit Engineering Tool) This chapter describes some settings other than control and additional features/functions. For these operations, Control Unit Engineering Tool (Model: EMU4-KNE) is used. 10.1 Output of Event Log The event logs of the parent terminal will be output in CSV format (saved in the computer). Connect the parent terminal and the computer with a LAN cable.
  • Page 112 File Name and Format of Event Log The format varies depending on the event to be recorded. You can identify the format type of output file or recorded logs by checking the event code type. For the event code type or details on each data, refer to 10.1.2 Details on Log Contents.
  • Page 113 ■Format 1 (Control type: Compressor control) ■Format 1 (Control type: Schedule control) Column Log contents Column Log contents Year/Month/Day/Hour/Minute/Second Year/Month/Day/Hour/Minute/Second Present status/mode Present status/mode Event code type Event code type Slave address of the event source Slave address of the event source Event code Event code Control status (contact output)
  • Page 114 ■Event code The event code is recorded for an event occurred. Event code Event name Details 0101 Interlocking control The control status has been changed according to the control setting. 0102 Schedule control 0103 Compressor control Contact output control By communication, the command has been received 0104 by communication to change the control status.

  • Page 115: Setting Of Clock

    10.2 Setting of Clock You will set the clock of the control unit. The clock setting is only for the parent terminal. *This function is available when the parent terminal is in the STOP status of control operation. If you attempt to execute it in the RUN status, a message will appear to ask whether to execute after the status is changed to STOP.

  • Page 116: Change Of Password

    Set the present time to the Date and time to set field. With any one of year, month, day, hour, minute, or second selected, enter the number or click the ▲ or ▼ button to change the number. Enter a password. For the password, refer to 10.3 Change of Password.

  • Page 117: Setting Of Logging Unit

    Connect the target control unit and the computer with a LAN cable. *Set the computer’s IP address in order to be in the same network. Enter a password to each input field of Password before change, Changed password, and Changed password (for confirmation).

  • Page 118: Check Of Ip Address

    ■When setting the logging ID Select the logging ID and then click the Write button. After the write has been completed, the following message appears. Click the OK button to close the message. ■When deleting the logging data in the logging unit. Click the Clear logging data button.

  • Page 119: Check Of F/W Version

    The check result is displayed in the table on the bottom of the window. When an IP addresses available for communication has been found, the following message appears for confirmation. To stop the check, click the Cancel button. <When an IP address available for communication has been found> When there is no IP address, the following message appears.

  • Page 120: Update Of F/W

    The firmware version of each control unit is displayed on the window. After the confirmation for firmware version has been completed, the following message appears. Click the OK button to close the message. <Completion message> 10.7 Update of F/W This function executes the firmware version update for the control unit. The present version of Control Unit Engineering Tool does not require any firmware version update of the control unit.

  • Page 121: Reference

    11. Reference This chapter describes how to deal with some troubleshooting and introduces Q & A. 11.1 Troubleshooting If you observe abnormal sound, odor, smoke, or heat generation from this product, turn off its power supply to stop using it promptly.

  • Page 122: After Sales Service

    The status of a child terminal displayed by the control monitoring function and its actual control status differ. ●Resolution Press the reset button of the corresponding control unit to reset. ●Cause When a problem such as power failure occurs and the power supplies of child terminals are switched from ON to OFF and again to ON, the corresponding control units all switch the output to OFF.

  • Page 123: Q&A

    11.3 Q&A ■Q&A about installation When even one control unit in the system is replaced, why is it that all the terminal units in the system must be powered off? All the terminal units in the system must be powered off because of the following reasons: ①Because live line work is not permitted.

  • Page 124: Requirements For Compliance With Emc Directive

    12. Requirements for Compliance with EMC Directive The EMC Directive specifies both ‘Emission (electromagnetic interference), requiring that products do not emit strong electromagnetic waves to the outside’ and ‘Immunity (electromagnetic susceptibility), requiring that products are not affected by electromagnetic waves from the outside.’ This section summarizes the precautions to have a system constructed with Energy Measuring Unit (applicable model: EMU4- BM1-MB and EMU4-HM1-MB) comply with the EMC Directive.

  • Page 125: Specifications

    13. Specifications 13.1 Specifications of the Control Unit Item Details Model EMU4-CNT-MB Auxiliary power supply rating 100 V AC to 240 V AC (+10%, -15%), 50 Hz to 60 Hz, 10 VA, Transient voltage: 4000 V Consumption Unit 9.0 VA (at 110 V AC: 7.0 VA, at 220 V AC: 9.0 VA)

  • Page 126: Specifications Of Modbus Communication

    13.2 Specifications of MODBUS Communication Item Details Physical interface RS-485 2-wire half duplex Protocol MODBUS RTU mode Transmission method Asynchronous Transmission wiring type Multi-point bus (either directly on the trunk cable, forming a daisy-chain) Baud rate 2400, 4800, 9600, 19200, 38400 bps (Default: 19200 bps) Data bit Stop bit...

  • Page 127: Specifications Of Control Unit Engineering Tool

    13.4 Specifications of Control Unit Engineering Tool Item Details Model EMU4-KNET Basic Language Japanese, English, Simplified Chinese specification 20 system per project Setting Maximum System function registration 32 terminals: 1 parent terminal and 31 child terminals per system Terminal *Each terminal is connected together via MODBUS RTU communication. number Set the control method on a system basis.

  • Page 128: Optional Products (Sold Separately)

    Energy Measuring Unit Accessory Small Type Display Unit for EMU4-D65 It is possible to display some measurement Energy Measuring Unit values. It is also used when settings are set. Consumables Lithium battery EMU4-BT It is used for EMU4-CNT-MB and EMU4-LM.

  • Page 129: External Dimensions Of Optional Products

    14.2 External Dimensions of Optional Products <Note> The unit of numbers: mm ■Energy Measuring Unit Extension Model for Same Voltage System (EMU4-A2) ■Energy Measuring Unit Extension Model for Different Voltage System (EMU4-VA2)
  • Page 130 <Note> The unit of numbers: mm ■Energy Measuring Unit Extension Model for Pulse Input (EMU4-PX4) ■Energy Measuring Unit Extension Model for Analog Input (EMU4-AX4)
  • Page 131 ■CC-Link Communication Unit for Energy Measuring Unit (EMU4-CM-C)
  • Page 132 ■Logging Unit for Energy Measuring Unit (EMU4-LM) ■CC-Link IE Field Network Basic Communication Unit for Energy Measuring Unit (EMU4-CM-CIFB)
  • Page 133 ■Small Type Display Unit for Energy Measuring Unit (EMU4-D65)

  • Page 134: External Dimensions Of The Control Unit

    15. External Dimensions of the Control Unit <Note> The unit of numbers: mm ■Model: EMU4-CNT-MB ■Model: EMU4-BT...

  • Page 135: The Software End User License Agreement

    16. The Software End User License Agreement CORPORATION (hereinafter referred to as "MITSUBISHI") to you (hereinafter referred to as "CUSTOMER"). The term “SOFTWARE" means any program on any media and any and all related documents and materials provided herewith by MITSUBISHI.
  • Page 136 Vte. Agua Santa 4211 Casilla 30-D (P.O. Box) Vina del Mar, Chile +56-32-2-320-600 Mitsubishi Electric Automation (China) Ltd. Mitsubishi Electric Automation Building, No.1386 Hongqiao Road, Shanghai, China 200336 +86-21-2322-3030 Mitsubishi Electric Automation (China) Ltd. 5/F,ONE INDIGO,20 Jiuxianqiao Road Chaoyang District,Beijing, China 100016...

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