Air Conditioning Control System Centralized Controller EB-50GU-A/EB-50GU-J Installation and Instructions Manual WARNING or Safety notes are marked with 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.
Safety precautions ●● Thoroughly read the following safety precautions prior to installation. ●● Observe these precautions carefully to ensure safety. WARNING Indicates a risk of death or serious injury. CAUTION Indicates a risk of injury or structural damage.
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 electric shock, malfunctions, smoke or fire, do not operate the switches/buttons or touch other electrical parts with wet hands. 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 dispose of the packing materials. Plastic bags pose suffocation hazard to children. To prevent injury, install the controller on a flat surface strong enough to support its weight. CAUTION To reduce the risk of shorting, current leakage, electric shock, malfunctions, smoke, or fire, do not install the controller in a place exposed to water or in a condensing environment. Controller must be installed by qualified personnel according to the instructions detailed in this manual.
Proper grounding must be provided by a licensed electrician. Do not connect the protective ground wire to a gas pipe, water pipe, lightning rod, or telephone wire. Improper grounding may result in electric shock, smoke, fire, or malfunction due to electrical noise interference. CAUTION To reduce the risk of electric shock, shorting, or malfunctions, keep wire pieces and sheath shavings out of the terminal block.
Additional precautions To avoid damage to the controller, use appropriate tools to install, inspect, or repair the controller. To avoid damage to the controller, do not overtighten the screws. To avoid damage to the controller, do not make holes on the controller cover. This controller is designed for exclusive use with the Building Management System by Mitsubishi Electric. The use of this controller for with other systems or for other purposes may cause malfunctions.
1. Introduction EB-50GU-A/EB-50GU-J is a centralized controller that can be operated over a Local Area Network (LAN). Any connected air conditioning systems can be operated or monitored on the Web browser. Refer to the Web browser instruction books (separate volume) for how to use the Web functions. Hereinafter, EB-50GU-A and EB-50GU-J, unless otherwise specified, will be called “EB-50.” 1-1. Parts names M-NET LED Red: Error Green: Power and M-NET * Refer to section 8-2 for details.
CN5 Connects to an external input/output adapter PAC-YG10HA. LAN Connects to other units of equipment over the LAN via a HUB. CN4 (RS-232C) Unused (only for maintenance) Ground (M4) Connects to protective ground wire. TB2 (V+, V-) (M3.5) DC power supply terminal block Connects to DC power cables (24 VDC) from power supply unit (PAC-SC51KUA). (V+: 24 VDC, V-: 0 V) TB3 (A, B, S) (M3.5) M-NET transmission terminal block Connects to M-NET transmission cables from power supply unit (PAC-SC51KUA).
1-2. Monitoring and operation of the air conditioners To monitor and operate the air conditioners, the EB-50 and a PC are required. Purchase the required licenses from your dealer. Refer to the Instruction Book (Web Browser for Initial Settings) for license registration. Note ●● The required licenses vary, depending on the functions to be used. Refer to the License Classification List for details. 1-3.
2. Package contents The following items are included in the package. Package contents (1) (2) (3) (4) (5) (6) (7) Centralized controller (EB-50) * A specified microSD card is already installed.
Notes on the microSD card installed on the EB-50 ●● The microSD card installed on the EB-50 has been set up at the factory. Do not use other SD cards as proper function cannot be guaranteed. ●● The microSD card installed on the EB-50 differs from the ones sold on the market. ●● The EB-50 will not start up if the microSD card does not function properly or is not installed. ●● Only the microSD card that has been formatted on EB-50 can be used.
3. Specifications 3-1.
3-2. External dimensions Unit: mm (in) Main body (when L-fittings are installed) 225 (8-7/8) 205 (8-3/32) 46 (1-13/16) L-fitting 30 (1-3/16) 20 (13/16) Fig. 3-1 13 20 (13/16) 36 (1-7/16) 4.5 (3/16) 10 (13/32) 4.
4. System configuration The figure below only shows the transmission cable connections. Power cables are omitted. Power (24 VDC) Power supply unit PAC-SC51KUA (sold separately) Outdoor unit (Y) Indoor unit Centralized controller EB-50 [000] AHC M-NET transmission cable Group 2 [004] [056] TB7 [005] [001] [003] BC controller Group 3 [057] [006] ME [007] LOSSNAY [008] [106] [009] [010] AHC [206] Mr.
Note ●● Provide a single ground point by grounding the shield wire of the M-NET centralized controller transmission cable at the power supply unit. Provide a ground point for the indoor-outdoor transmission cable for each outdoor unit. (Provide the appropriate grounding according to the local standard.) ●● Set the centralized control switch (SW2-1) on the outdoor unit connected to the M-NET transmission cable to ON.
4-2. Setting M-NET address for various devices Designate the address for each M-NET device. The addresses cannot be overlapped within the same M-NET system. Address setting method M-NET address Indoor unit Assign the lowest address to the main indoor unit in the group, and assign sequential addresses to the rest of the indoor units in the same group. 1–50 Outdoor unit Assign an address that equals the lowest indoor unit address in the same refrigerant system plus 50.
Address setting method M-NET address Sub system controller Assign an address that equals the group number of the smallest controlled group plus 200. 201–250 Advanced HVAC CONTROLLER Assign an address that equals the address of the main indoor unit with the lowest address in the group plus 200. If the address overlaps with the Sub system controller's address, assign an arbitrary but unused address between 201 and 250 to the Advanced HVAC CONTROLLER.
[Main and Sub system controllers (M-NET)] Each group can be controlled by a Main system controller or a Sub system controller. EB-50 is exclusively for use as a Main system controller and cannot be used as a Sub system controller. Main system controller Main system controller refers to a system controller that controls all other system controllers including the units they control. If a given system has only one system controller, that controller becomes a Main system controller.
The system cannot be configured as shown in the examples below. ●● Groups that are not under the control of a Main system controller cannot be controlled from a Sub system controller. Main system controller Group Sub system controller Group Group ●● Each group cannot be placed under the control of two or more Main system controllers. Main system controller 1 Group Main system controller 2 Group Group ●● Sub system controllers cannot be placed under the control of two or more Main system controllers.
4-3. M-NET system setting example (1) Setting example for connecting multiple M-NET system controllers PC LAN LAN EB-50 (Main system controller) M-NET 50 indoor units [000] HUB ON/OFF remote controller (Sub system controller) [201] ●● Make the initial settings such as group settings and interlock settings on the Web browser. Refer to the Instruction Book (Web Browser for Initial Settings) for details.
(2) Setting example for controlling Mr. Slim units (A-control models) PC LAN LAN EB-50 20 indoor units Groups 1–20 (Main system controller) [000] HUB 2 M-NET adapters (adapter address 21 and 22) Mr. Slim outdoor units Groups 21 and 22 ●● An M-NET adapter (sold separately) is required to connect the Mr. Slim model of units to the M-NET.
5. Installation 5-1. Field-supplied items The following items are required to install the EB-50. Field-supplied items Specifications Unit fixing screw (required when using L-fittings) M4 x 4 pcs. DIN rail and fixing screw (required when using DIN rails) DIN rail width: 35 mm (1-13/32 in) Applicable type (IEC 60715/DIN 60715): TH35-7.5Fe, TH35-7.5Al Protective ground wire Type: Sheathed vinyl wire (should not be lighter than ordinary PVC sheathed flexible cord IEC 60227.
Field-supplied items Specifications DC power cable Must comply with the local standards and the power requirement of EB-50. Recommended type: Min. 0.75 mm² (Min. AWG 18), 2-conductor power cable Length: Max. 50 m (164 ft) * Use cables with an appropriate diameter so that the cables can be fixed with the cable strap below the terminal block. A diameter of 10 mm is recommended. LAN cable Category 5 or above straight cable (Max.
5-2. M-NET transmission cable length Observe the maximum total length of M-NET transmission cables to ensure proper signal transmission to and from the connected equipment over the M-NET transmission cables. If the maximum total length is exceeded, the M-NET signals will be attenuated, resulting in communication error and control failure.
(1) Maximum total length of M-NET transmission cables a + b + d + e (f) ≤ 500 m (1640 ft) a+b+c+g ≤ 500 m (1640 ft) e (f) + d + c + g ≤ 500 m (1640 ft) (2) Maximum total length of power feed for the indoor-outdoor transmission cables ≤ 200 m (656 ft) g d + e (f) ≤ 200 m (656 ft) (3) Maximum total length of power feed for the centralized control transmission cables a+b ≤ 200 m (656 ft) a + b + c ≤ 200 m (656 ft) Note ●● The M-NET remote controller cable length should be 10 m (32 ft) or shorter.
5-3. Installation The EB-50 must be installed inside the metal control box. Either the supplied L-fittings or DIN rail attachments can be used for the installation. To reduce the risk of shorting, current leakage, electric shock, malfunctions, smoke, or fire, do not install the controller in a place exposed to water or in a condensing environment. To reduce the risk of electric shock, malfunctions, or fire, seal the gap between the cable access holes with putty.
Method 1: Installation using L-fittings 1. Have a metal control box ready. (Minimum steel thickness: 1 mm (3/64 in)) 2. Attach the supplied two L-fittings to the EB-50 with the supplied M3 screws. (Fig. 5-3) 3. Properly install the EB-50 with the M4 screws (field-supplied) horizontally inside the metal control box (Fig. 5-3), taking into consideration the installation space (Fig. 5-1). M3 (8 mm (5/16 in)) M4 XS M3 (8 mm (5/16 in)) M4 Fig.
Method 2: Installation using DIN rail 1. Have a metal control box ready. (Minimum steel thickness: 1 mm (3/64 in)) 2. Attach the supplied two DIN rail attachments to the EB-50 with the supplied M3 screws. (Fig. 5-4) 3. Properly mount the EB-50 on the DIN rail vertically (Fig. 5-5 and Fig. 5-6), taking into consideration the installation space (Fig. 5-2). DIN rail attachments M3 (6 mm (1/4 in)) up Fig. 5-4 Fig. 5-5 Note ●● Each DIN rail attachment must be fixed to the EB-50 with four M3 screws.
[Mounting/removing the EB-50 on/from the DIN rail] up DIN rail attachment DIN rail Mounting Removing Fig. 5-6 (1) Mounting 1. Hook the upper side of the attachments to the DIN rail. 2. Push the lower part of the EB-50 until it snaps into place. Note ●● Ensure that the DIN rail attachments are fixed securely in place to the DIN rail. (2) Removing 1. Push the EB-50 downwards. 2. Pull it up toward you.
6. Wiring connections To reduce the risk of injury or electric shock, switch off the main power before performing electrical work. All electric work must be performed by a qualified electrician according to the local regulations, standards, and the instructions detailed in this manual. Capacity shortage to the power supply circuit or improper installation may result in malfunction, electric shock, smoke, or fire.
6-2. Connecting protective ground wire Connect an M4 ring terminal to the protective ground wire, and connect it to the ground terminal as shown in Fig. 6-2. * Clamp the protective ground wire and DC power cables (24 VDC). Wire color: yellow/green Protective ground wire Fig.
6-3. Connecting M-NET transmission cables and DC power cables (24 VDC) Connect the M-NET transmission cables and DC power cables (24 VDC) as shown in Fig. 6-3. (M-NET transmission cables A and B: Non-polarized; S: Shield) Be sure to use PAC-SC51KUA as a power supply unit.
Note ●● Connect the M-NET transmission cables to the centralized controller system side, and supply power to the M-NET from PAC-SC51KUA. (Leave the power jumpers on all the outdoor units as they are (connected to CN41 at factory shipment).) 6-4. Reinstalling the cover Reinstall the cover using the three screws that were unscrewed. XS Fig.
6-5. Connecting LAN cable Connect the LAN cable to the LAN port on the EB-50. ●● The LAN cable is field supplied. Use a category 5 or above straight LAN cable. ●● Use a switching HUB. ●● The maximum distance between the switching HUB and EB-50 is 100 m (328 ft). LAN port Fig. 6-5 Note ●● LAN must be installed before the unit installation. Route the LAN cable to the EB-50 in the same way as the M-NET transmission cables.
7. Initial settings Initial settings need to be made for each EB-50 on the Web browser. Details about the initial settings and other settings are covered in the Instruction Books (Web Browser for Initial Settings, Web Browser for System Maintenance Engineer). The format in which the web page address for each EB-50 is expressed on the Web browser is shown below. http://[IP address of the EB-50]/init/administrator.html For example, if the IP address of the EB-50 is [192.168.1.
Initial settings on the Web browser Settings Details Date and Time Current date/time, daylight saving time Basic System Unit Settings, Network Settings (IP address*, Subnet mask, Gateway), Display format, System Configuration Settings (M-NET Settings, External Input Setting, Time Master/Sub) [Default network settings] IP address: 192.168.1.1 Subnet mask: 255.255.255.0 Gateway: 0.0.0.0 * When connecting the EB-50 to a dedicated LAN, the IP address can be set with dipswitch SW851.
7-1. Quick IP address setting IP address can be easily set to an address between 192.168.1.1 and 192.168.1.15 with dipswitch SW851. Set SW851 before turning on the power. No. 1 SW851 [0: OFF, 1: ON] 2 3 4 0 0 0 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 IP address Subnet mask Gateway Default 192.168.1.1 192.168.1.1 192.168.1.2 192.168.1.3 192.168.1.4 192.168.1.5 192.168.1.
SW851 1 2 3 4 ON OFF SW851 Fig. 7-1 7-2. Network settings on the Web browser IP, subnet mask, and gateway addresses can be set on the Web browser. All the switches of SW851 must be set to OFF to make these settings. When connecting the EB-50 to an existing LAN, consult the system administrator to decide the IP, subnet mask, and gateway addresses. Refer to the Instruction Book (Web Browser for Initial Settings) for how to make these settings.
8. Test run Confirm that the group settings and interlock settings are complete before performing a test run. 8-1. Collective operation ON/OFF Test run procedure 1. Turn on the power to the EB-50 and all units. LED857 on the EB-50 turns on. 2. When LED857 turns off, press the Collective ON/OFF switch (SW853). The group of units will start an operation. When the group operation starts, LED858 turns on. * The equipment connected to DIDO controller cannot be operated. 3.
Note ●● The operation mode cannot be changed with Collective ON/OFF switch (SW853). The units will start operation in the currently selected operation mode. ●● The operation mode other than the “Test run” mode can be selected on the Web browser. Refer to the Instruction Book (Web Browser for System Maintenance Engineer) for details.
8-2. Service LEDs LED858 LED857 M-NET/Error SD SD Fig. 8-2 LED Item Color M-NET M-NET Green Error Error status Red SD card error status Orange SD card access Green LED857 Start-up Yellow LED858 ON/OFF status*2 Yellow SD Lit Unlit Blink Blink Unlit Blink Unlit Blink Unlit Lit Unlit Lit Unlit Status Powered Not powered M-NET transmission in progress One or more air conditioning units*1 are in error. Normal The SD card may be damaged.
Note ●● When the LED for SD card error status is blinking, the microSD card installed on the EB-50 may be damaged. If the microSD card is damaged, consult your dealer for a replacement. ●● Only a qualified technician should insert or remove the microSD card.
9. Product features Any connected air conditioning systems can be operated or monitored on the EB-50 Web browser. The table below summarizes the available functions and settings on EB-50. Refer to the Web browser instruction books (separate volume) for details. User's operation functions Function Operation*1 Description ON/OFF The ON/OFF operation can be performed collectively or for each group or block. Operation mode The operation mode can be switched collectively or for each group or block.
User's operation functions Function Description Malfunction reset Displayed error can be reset. Clear malfunction log Displayed unit errors and communication errors can be cleared. Operation*1 External input Inputs signals (Emergency stop, ON/OFF, Prohibit/Permit local remote controller operation) collectively from an external device. (A separately-sold external input/ output adapter (PAC-YG10HA) and external power supply (12 or 24 VDC) are required.
User's operation functions Function Monitor*1 Description Condition List Displays the operation status of each group. Prohibition of local remote controller operation Displays the icon to indicate that the operation is prohibited by the EB-50 or other system controllers. Measurement List Displays the readings of the temperature sensor, humidity sensor, and metering device. Malfunction List Displays the address of the unit in error and error code.
Function settings Initial settings Function Date and Time Sets the current date/time and daylight savings time. License registration Registers license for optional functions. Basic System Sets unit name, unit ID, IP address, subnet mask, gateway, display format, M-NET address, range of prohibited controllers, external input setting, and advanced setting.
Function Function settings Functions 2 User settings Functions 3 User settings Description Set Temperature Range Limit*1 The settable temperature range can be set. Night Mode Schedule The start/end times for the Night mode (quiet operation) for outdoor units can be set. This function switches the operation modes of the indoor units connected to the same outdoor unit between cooling and heating based on the room temperature System-changeover and the set temperature.
Miscellaneous Function Description Back up settings data All settings data can be stored in the PC. Import settings data Backed-up settings data can be restored from the PC. Time synchronization Clocks on the controllers and the units that are under the control of the main system controller are synchronized once a day (applicable only to the ones that support this function). *1 The item and range that can be operated or monitored depend on the unit model.
10. External input/output To use external input/output, a separately-sold external input/output adapter (PAC-YG10HA) and external power supply (12 or 24 VDC) are required. External input/output terminal (CN5) Fig.
10-1. External signal input function Using external contact signals (12 or 24 VDC), the following collective operations for all connected air conditioning units can be controlled: Emergency stop, ON/OFF operation, and Prohibit/Permit local remote controller operation. (1) External signal input function setting Setting mode Description Not in use (Factory setting) External input signal will not be used.
(2) External signal input specifications CN5 Lead wire from PAC-YG10HA No. 5 Orange Emergency Stop (Level signal) Emergency stop signal, Normal operation signal ON/OFF (Level signal) ON signal, OFF signal ON/OFF/Prohibit/Permit (Pulse signal) ON signal No. 6 Yellow – – OFF signal No. 7 Blue – – Prohibit signal No. 8 Gray – – Permit signal No.
(B) Pulse signal (Example) ON/OFF (Example) Prohibit/Permit 0.5–1.0 second (ON) Contact ON Contact OFF (OFF) Contact ON Contact OFF 0.5–1.0 second 0.5–1.0 second Stop Run Stop (Prohibit) Contact ON Contact OFF (Permit) Contact ON Contact OFF 0.5–1.0 second Permit Prohibit Permit 1. If input pulse signal is the same as the current operation status of the air conditioning units, no status change will occur.
(4) Recommended circuit (A) Level signal CN5 Red 9 Use relays X1, X2, Y1, and Y2 that meet the following specifications. X1 ON/OFF or Emergency stop 8 7 6 5 Orange 1 External power supply *1 (12 or 24 VDC) X1 Max. 10 m (32 ft) EB-50 *1 Select an external power supply suitable for the relays used. (12 or 24 VDC) Connect the external power supply in the correct polarity to input and output the signals. Connect 5–8 (see the figure at left) to the negative side.
10-2. External signal output function An ON signal is output when one or more units are in operation, and Error signal is output when one or more units are in error. (1) External signal output specifications CN5 Lead wire from PAC-YG10HA Signal No. 1 Green Common ground for external output (Ground for external power supply) No. 2 Black ON signal*, OFF signal No.
(2) Recommended circuit Relay-driven circuit CN5 Use relays Z1 and Z2 that meet the following specifications. 9 4 3 2 Brown Diode *2 Black EB-50 L1 Z2 L2 Z2 Z1 1 Z1 Operation coil Rated voltage: 12 or 24 VDC Power consumption: Max. 0.9 W *1 Select an external power supply suitable for the relays used. (12 or 24 VDC) Connect the external power supply in the correct polarity to input and output the signals. Connect 1 (shown in the figure at left) to the negative side.
11. Error code list Error codes and their definitions are shown below. If an error occurs, note the error code and consult your dealer. (A) indicates A-control units.
1500 Refrigerant cycle not operate due to overcharge 1501 Refrigerant cycle not operate due to undercharge (/compressor shell temperature abnormality) 1502 Refrigerant cycle not operate due to liquid back /Low-discharge super heat abnormality (A) 1503 Refrigerant cycle not operate due to coil frost 1504 Refrigerant cycle not operate due to overheat protection 1505 Refrigerant cycle not operate due to compressor vacuum operation protection/refrigerant low temperature abnormality 1506 Refrigerant
2507 Water system not operate due to dew condensation prevention control activated 2600 Water system operation restricted due to water leak 2601 Water system operation restricted due to water supply suspension/humidifier water supply suspension 2602 Water system operation restricted due to drain pump abnormality 2603 Water system operation restricted due to drain sensor abnormality 2604 Water system operation restricted due to liquid level abnormality 2613 Drop in water flow rate 3152 Air sys
4110 Electric system not operate due to high voltage part 4111 Electric system not operate due to bus current 4112 Electric system not operate due to coil overheat 49°C 4113 Electric system not operate due to heater overheat 4114 Electric system not operate due to fan controller abnormality 4115 Electric system not operate due to power supply synchronism abnormality /Input circuit (board) failure 4116 Electric system not operate due to motor abnormality/speed abnormality 4117 Compressor self-
4260 Inverter cooling fan trouble 426* Inverter cooling fan trouble - Inverter No.: * 5000 Sensor trouble 50*0 Sensor trouble in system * 51** Temperature sensor trouble - Sensor No.: ** 5202 Connector (63L) open (A) 52** Pressure sensor trouble - Sensor No.: ** 5300 Current sensor abnormality (A) 53** Current sensor trouble - Sensor No.: ** 54** Humidity sensor trouble - Sensor No.: ** 55** Gas sensor trouble - Sensor No.: ** 56** Air speed sensor trouble - Sensor No.
6602 Communication error - Transmission processor hardware error 6603 Communication error - Transmission line busy 6604 Communication error - No ACK (06H) (communication circuit error) 6605 Communication error - No response frame 6606 Communication error - Transmission processor communication error 6607 Communication error - No ACK return 6608 Communication error - No return of response frame 6609 Communication error 6610 Communication error 6700 Communication error - K-transmission abnor
6766 K abnormality - Coil frost/overheat protection 6767 K abnormality - Outdoor unit trouble - Indoor/outdoor communication error 6771 K abnormality - High pressure abnormality, Low pressure abnormality 6772 K abnormality - Inner thermostat function, Discharge temperature abnormality, Shell thermostat function, Overcurrent protection 6773 K abnormality - Radiator plate thermostat function 6774 K abnormality - Outdoor thermistor abnormality 6775 K abnormality - Pressure sensor abnormality, Indo
6833 Communication error - MA communication transmission/reception hardware trouble 6834 Communication error - MA communication start bit detection error 6840 Communication error - A control no indoor/outdoor communication/reception abnormality 6841 Communication error - A control indoor/outdoor communication synchronization recovery abnormal 6844 Communication error - A control indoor/outdoor communication incorrect indoor/outdoor wiring connection, excessive number of indoor units (more than five
7131 System abnormality - Mixed cooling only H/P connection error (Facility PAC) 7132 System abnormality - Multiple entries of operation performance (Facility PAC) 7200 System abnormality - Numeric values unsettled 7201 System abnormality - Numeric values unsettled 73** System abnormality - LON system equipment abnormality 64
microSD and microSDHC Logos are trademarks of SD-3C, LLC. Java is a registered trademark of Oracle and/or its affiliates. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This product is designed and intended for use in the residential, commercial and light-industrial environment. The product at hand is based on the following EU regulations: • Electromagnetic Compatibility Directive 2004/108/EC • Restriction of Hazardous Substances 2011/65/EU Please be sure to put the contact address/telephone number on this manual before handing it to the customer. HEAD OFFICE: TOKYO BLDG.
