Datasheet for EMERSON models including: EXD-HP1 2, Stand-alone Superhear Economizer Controller
EXD-HP1/2 are stand-alone universal superheat and/ or economizer controllers for heat pumps, heating units, air conditioning and precision.
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DocumentDocumentEXD-HP1/2 Stand-alone Superheat / Economizer Controller Technical Bulletin EXD-HP1/2 are stand-alone universal superheat and/ or economizer controllers for heat pumps, heating units, air conditioning and precision cooling such as telecom and shelter applications. Features · Self-adapting superheat/economizer control in conjunction with EMERSON stepper motor driven electronic expansion Valves EXM/EXL or EXN · Discharge hot gas temperature control by wet refrigerant vapor/vapor injection to compressor · EXD-HP1: Controller with one EXV output · EXD-HP2: Controller with two independent EXV outputs · Controllers as slave with Modbus (RTU) communication capability. All data (read/write) accessible by any third-party controller having modbus communication (RTU) · Upload/download key (accessory) for transmission of parameter settings among controllers with the same setting · Low pressure switch and freeze protection function · Manual positioning of valve(s) · Limitation of evaporating pressure (MOP) · Low/high superheat alarm · Monitoring of sensors and sensor wiring and detection of sensor and wiring failures · Integrated display (3-digits LEDs) and key board · Electrical connection via plug-in type screw terminals (included with controller) · OEM product: Box order quantities: 20 pieces (Multi-pack) EXD-HP2 Selection table Type Description Part No. Multipack Single pack Controllers EXD-HP1 EXD-HP2 with 1 EXV output with 2 EXV outputs 807836M - 807837M - Valves / Coils EXM-B0A EXM-B0B EXM-B0D EXM-B0E EXM-125 EXL-B1F EXL-B1G EXL-125 EXN-B2K EXN-B2L EXN-125 Electronic expansion valve Coil 12 VDC Electronic expansion valve Coil 12 VDC Electronic expansion valve (not selectable in conjunction with R290) Coil 12 VDC 800399M 800400M 800401M 800402M 800403M 800405M 800406M 800407M - 800421 800422 800420 Temperature sensor ECP-P30 Temperature sensor with 3 m cable - 804495 Pressure sensors Suction pressure PT5N-07M / PT5N-07T PT5N-10FLR PT5N-18M / PT5N-18T PT5N-30M / PT5N-30T -0.8...7 bar -0.8...10 bar 0...18 bar 0...30 bar 805350M / 805380M 805391M 805351M / 805381M 805352M / 805382M 805350 / 805380 805391 805351 / 805381 805352 / 805382 Plug and cable assembly for pressure sensors PT4-M15 1.5 m cable length PT4-M30 3.0 m cable length PT4-M60 6.0 m cable length PT4-M60-FLR 6.0 m cable length, 2-wire, ATEX certified Note: For further details of EXM/EXL, EXN and PT5N: Please see separate Technical Bulletin. 804803M 804804M 804805M - 804803 804804 804805 804806 www.climate.emerson.com/en-gb EXD-HP1/2 Stand-alone Superheat / Economizer Controller Alarm functions - List of alarms Condition Hardware errors (sensors) Hardware errors (Stepper motor) Low superheat Discharge hot gas above limit High superheat Low pressure Freezing Delay time Fix: 1 min. 30 sec. Adjustable Adjustable Adjustable Alarm relay Triggered Triggered Triggered Triggered Triggered Triggered Triggered Valve position Fully close - Fully close Operating Operating Operating Fully closed Reset type Auto Auto Auto/Manual Auto Auto Auto/Manual Auto/Manual Display alarm LED ON ON ON/Blinking ON ON ON/Blinking ON/Blinking Technical Data EXD-HP1/2 Supply voltage Power consumption Digital inputs Relay output Type of action Rated impulse voltage 24 VAC/DC ±10% EXD-HP1: Max. 15 VA EXD-HP2: Max. 20 VA EXD-HP1: Two, each potential free EXD-HP2: Three each potential free SPDT contacts, AgSnO Inductive (AC15) 24 VAC: 1 A Resistive: 24 VAC/DC: 4 A 1B 0.5kV Pollution Degree 2 Plug-in connector size Removable screw version wire size 0.14...1.5 mm2 Protection class Housing IP20 Self-extinguishing ABS Mounting DIN rail mounted Temperatures Storage -20...+65°C operating -10...+60°C Relative humidity 0...85% RH non condensing Applied directive LVD, EMC, RoHS Compliance with DIN EN60335-1 DIN EN 55014-1, DIN EN 55014-2 Weight 175 g Marking , Input Sensors, Output Valves Description Temperature input Pressure sensor input Electronic expansion valves (stepper motor) output Note: The connection of two valves are permitted as below table: Circuit 1 Circuit 2 EXM EXM EXM EXL EXL EXM EXL EXL EXN EXN Specification ECP-P30 (3 meter cable length) Range: -30°C...+150°C PT5N Signal: 4 ... 20 mA EXM/L series or EXN Series Dimensions (mm) 2 EXD-HP12_TB_EN_0321_R02.docx EXD-HP1/2 Stand-alone Superheat / Economizer Controller MOP Table & Functions Refrigerant Min. Max. Factory setting Function Refrigerant Min. Max. Factory setting Function R22 -40 °C +50 °C R134a R410A R32 -40 °C -40 °C -40 °C +66 °C +45 °C +30 °C R407C -40 °C +48 °C R290* -40 °C +50 °C R448A -57 °C +66 °C R449A -57 °C +66 °C Note1: *) EXN not permitted +15 °C +15 °C +15 °C +15 °C +15 °C +15 °C +12 °C +12 °C Superheat control & R452A Economizer control Superheat control R454A* Superheat control R454B* Superheat control & R454C* Economizer control Superheat control & R513A Economizer control Superheat control R452B* Superheat control R1234ze* Superheat control R1234yf* -45 °C -57 °C -40 °C -66 °C +66 °C +66 °C +45 °C +48 °C +15 °C +10 °C +18 °C +17 °C Superheat control Superheat control Superheat control Superheat control -57 °C -45 °C -57 °C -52 °C +66 °C +66 °C +66 °C +66 °C +13 °C +25 °C +24 °C +15 °C Superheat control Superheat control Superheat control Superheat control Note2: *) Warning -Flammable refrigerants: EXD-HP1/2 has a potential ignition source and does not comply with ATEX requirements. Installation only in non-explosive environment. For flammable refrigerants only use valves and accessories approved for it! Wiring Diagrams EXD-HP1 and EXD-HP2 (Base board) EXD-HP2 (Upper board) Notes: Base board for superheat control or Economizer control. Alarm relay, dry contact. Relay coil is not energized at alarm condition or power off and energized during normal operation Hot gas discharge sensor input is mandatory only for economizer control function. Transformer shall be class 2 Notes: Upper board only for superheat control Upper board does not need to be wired if circuit 2 of EXD-HP2 is disabled 3 EXD-HP12_TB_EN_0321_R02.docx EXD-HP1/2 Stand-alone Superheat / Economizer Controller Communication ModBus (RTU) protocol details The use of communication is not necessary/mandatory; however, the communication is available for connection to upper level of system controller (third party controller) in order to perform data and commands transfer as well as data logging. EXD-HP1/2 act as slave and third-party controller is master. In case of several EXD-HP1/2 connections to master, each driver needs to be addressed for proper communication. Bus topology ModBus Specification The Mode: RTU Modbus slave address range: 1 to 127 (parameter Adr) Baud rate: 9600 bps, 19200 bps (parameter br) Start bit: 1 Data bits: 8 Parity: even (default), no parity (parameter PAr) Stop bits: 1 Master response timeout: 500 ms Transmission Details Modbus register address ranges Read-only data: Starting address: 0x0100 (256) Writable data: Starting address: 0x0200 (512) Configuration data: Starting address: 0x0300 (768) Read Data transmission Available through Modbus Function code 03 (0x03) Read Holding Registers Request Function code 1 Byte 0x03 Starting Address 2 Bytes 0x0000 to 0xFFFF Register count 2 Bytes 1 to 125 (0x7D) Response Function code 1 Byte 0x03 Byte count 1 Byte 2 x N* Holding Registers N* x 2 Bytes *N = Quantity of Input Registers Error Error code 1 Byte 0x83 Exception code 1 Byte 01 = Function code not supported 02 = Starting Address or register count out of range 03 = Register count out of range 01 or 02 or 03 4 EXD-HP12_TB_EN_0321_R02.docx EXD-HP1/2 Stand-alone Superheat / Economizer Controller Write Data transmission (single register) Available through Modbus Function code 06 (0x06) Write Holding Register Request Function code 1 Byte 0x06 Starting Address 2 Bytes 0x0000 to 0xFFFF Value 2 Bytes 0x0000 to 0xFFFF Response Function code 1 Byte 0x06 Starting Address 2 Bytes 0x0000 to 0xFFFF Value 2 Bytes 0x0000 to 0xFFFF Error Error code 1 Byte 0x86 Exception code 1 Byte 01 or 02 01 = Function code not supported 02 = Starting address out of range Write Data transmission (multiple registers) Available through Modbus Function code 16 (0x10) Write Holding Registers Request Function code 1 Byte 0x10 Start Address 2 Bytes 0x0000 to 0xFFFF Register count 2 Bytes 0x0001 to 0x0078 Byte count 1 Byte 2 x N Registers values 2 x N Bytes Value N = register count. Response Function code 1 Byte 0x10 Starting Address 2 Bytes 0x0000 to 0xFFFF Register count 2 Bytes 0x0001 to 0x0078 Error Error code 1 Byte 0x90 Exception code 1 Byte 01 or 02 or 03 01 = Function code not supported 02 = Register Address invalid 03 = Register Value out of range Writable variables EXD-HP1/2 Modbus address dec. / hex. Display code Description 512 / 0x0200 513 / 0x0201 1Ho Manual mode Circuit 1 1HP Manual valve opening Circuit 1 514 / 0x0202 515 / 0x0203 Factory default (when DI1 is Off) Digital outputs 516 / 0x0204 517 / 0x0205 518 / 0x0206 Manual alarm reset command 2Ho Manual mode Circuit 2 (only EXD-HP2) 2HP Manual valve opening Circuit 2 (only EXD-HP2) 519 / 0x0207 Discharge temperature input 520 / 0x0208 521 /0x0209 522 / 0x020A 523 / 0x020B 524 / 0x020C 525 / 0x020D 526 / 0x020E Discharge temp. control Demand circuit 1 Demand circuit 2 Manual defrost circuit 1 Manual defrost opening circuit 1 Manual defrost circuit 2 Manual defrost opening circuit 2 Units Remarks 0 = OFF 1 = ON % Only active while manual mode is ON 1 = on (Set all parameters setting to factory default setting) 0x0001 = Alarm relay 1 = Clear the alarm 0 = OFF 1 = ON % Only active while manual mode is ON 1/100°C % % Source for discharge temperature if parameter 1EC (0x31B) = 1 Allowed temperature range 0...160°C Minimum update rate: 2 seconds 0 = Discharge Temp. Control enabled 1 = Discharge Temp. Control disabled 0 = No demand 1 = Demand 0 = No demand 1 = Demand 0 = OFF 1 = ON Only active while Manual defrost circuit 1 = ON 0 = OFF 1 = ON Only active while Manual defrost circuit 2 = ON 5 EXD-HP12_TB_EN_0321_R02.docx EXD-HP1/2 Stand-alone Superheat / Economizer Controller Read-only variables EXD-HP1/2 Modbus address Description dec. / hex. 256 / 0x100 Valve opening - Circuit 1 257 / 0x101 Digital input - Circuit 1 258 / 0x102 Digital outputs 259 / 0x103 Pressure sensor 1 - Circuit 1 260 / 0x104 Temperature sensor 1 - Circuit 1 261 / 0x105 Temperature sensor 3 - Circuit 1 262 / 0x106 Saturation temperature - Circuit 1 263 / 0x107 Pressure sensor 1 failure - Circuit 1 264 / 0x108 Temperature sensor 1 failure - Circuit 1 265 / 0x109 Temperature sensor 3 failure - Circuit 1 266 / 0x10A Functional alarm set Circuit 1 267 / 0x10B Hardware alarm set 268 / 0x10C General application state Circuit 1 269 / 0x10D Superheat set point - Circuit 1 270 / 0x10E Superheat measured/calculated - Circuit 1 271 / 0x10F Software revision (x104) 272 / 0x110 273 / 0x111 274 / 0x112 275 / 0x113 276 / 0x114 277 / 0x115 278 / 0x116 279 / 0x117 280 / 0x118 281 / 0x119 Valve opening - Circuit 2 Digital inputs - Circuit 2 (only EXD-HP2) Pressure sensor 2 - Circuit 2 Temperature sensor 2 - Circuit 2 Saturation temperature 2 Pressure sensor 2 failure - Circuit 2 (only EXD-HP2) Temperature sensor 2 failure - Circuit 2 (only EXD-HP2) Superheat set point - Circuit 2 Superheat measured/calculated - Circuit 2 Digital input DI3 282 / 0x11A Functional alarm set Circuit 2 283 / 0x11B General application state Circuit 2 Unit Remarks 1/100% 0 = No demand 1 = Demand 0x0001 = Alarm relay 1/100 bar 1/100°C 1/100°C 1/100°C 0 = No failure 1 = Failure 0 = No failure 1 = Failure 0 = No failure 1 = Failure 0x0001 = Low pressure 0x0004 = High superheat 0x0002 = Low superheat 0x0008 = Freeze protection 0x0001 = Valve 1 alarm 0x0002 = Valve 2 alarm (only EXD-HP2) 0x0004 = Pressure sensor 1 0x0008 = Pressure sensor 2 (only EXD-HP2) 0x0010 = Temp. sensor 1 0x0020 = Temp. sensor 2 (only EXD-HP2) 0x0040 = Temp. sensor 3 0 = No demand 1 = Demand 2 = Superheat control 3 = MOP control 4 = Alarm state 5 = Discharge temperature control 6 = Manual mode 1/100 K 1/100 K Hexadecimal format 1 hex digit for controller type: 1 hex digit for major revision 1= HP1, 2 = HP2 2 hex digits for minor revision 1/100 % 0 = No demand 1 = Demand 1/100 bar 1/100 °C 1/100 °C 0 = No failure 1 = Failure 0 = No failure 1 = Failure 1/100 K 1/100 K 0 = no effect 1 = Only superheat control for economizer 0x0001 = Low pressure 0x0004 = High superheat 0x0002 = Low superheat 0x0008 = Freeze protection 0 = No demand 3 = MOP control 1 = Demand 4 = Alarm state 2 = Superheat control 5 = N/A 6 = Manual mode Configuration parameters EXD-HP1/2 Modbus address dec. / hex. Display code Description 768 /0x300 H5 Password 769 /0x301 770 / 0x302 Adr Modbus address br Modbus baudrate 771 / 0x303 772 / 0x304 PAr Modbus parity -C2 Circuit 2 disabled 773 / 0x306 -uC Units conversion 774 / 0x305 HP- Display mode EXD-HP1 = 0 or 1, EXD-HP2 = 0, 1 or 2 Unit Default value Range Remarks 12 1 - 1999 1 1 - 127 1 0 - 1 0 = 9600 baud 1 = 19200 baud 0 0 - 1 0 = Parity even 1 = No parity 0 0 - 1 0 = Circuit 2 enabled 1 = Circuit 2 disabled 0 = °C, K, barg 1 = °F, psig 0 0 - 1 This parameter only affects the display on device. The units are SI-based internally as well as for MODBUS communication. 1 0 - 2 0 = No display 1 = Circuit 1 2 = Circuit 2 6 EXD-HP12_TB_EN_0321_R02.docx EXD-HP1/2 Stand-alone Superheat / Economizer Controller Configuration parameters EXD-HP1/2 Modbus address dec. / hex. Display code Description Unit Default value Range Remarks Parameters Circuit 1 775 / 0x307 1uE 776 / 0x308 1u4 777 / 0x309 1u0 778 / 0x30A 1uP 779 / 0x30B 1uu 780 / 0x30C 1u9 781 / 0x30D 1uL 782 / 0x30E 1u5 783 / 0x30F 1u2 784 / 0x310 1u3 785 / 0x311 1P9 786 / 0x312 1PA 787 / 0x313 1Pb 788 / 0x314 1Pd 789 / 0x315 1P4 790 / 0x316 1P2 791 / 0x317 1P5 792 / 0x318 1P- 793 / 0x319 1i- 794 / 0x31A 1d- 795 / 0x31B 1EC 796 / 0x31C 1PE 797 / 0x31D 1iE 798 / 0x31E 1dE 799 / 0x31F 1uH 800 / 0x320 1uA 801 / 0x321 1ud 802 / 0x322 1E2 Function Control mode circuit 1 Refrigerant circuit 1 Pressure sensor 1 - type Start opening valve1 Start opening duration valve 1 Low superheat alarm mode circuit 1 % Sec. Superheat setpoint circuit 1 1/10 K MOP mode circuit 1 MOP sat. temp. limit circuit1 Low pressure alarm mode circuit1 Low pressure alarm cut-out circuit1 Low pressure alarm delay circuit1 Low pressure alarm cut-in circuit1 1/10 bar Sec. 1/10 bar Freeze alarm mode circuit1 Freeze alarm cut-out circuit1 Freeze alarm delay circuit1 Superheat control circuit1 fixed PID Kp factor Superheat control circuit1 fixed PID Ti factor Superheat control circuit1 fixed PID Td factor Discharge temp. source 1/10°C Sec. 1/10 1/10 Economizer control Circuit 1 fixed PID Kp Economizer control Circuit 1 fixed PID Ti Economizer control Circuit 1 fixed PID Td High superheat alarm mode circuit 1 High superheat alarm setpoint circuit 1 High superheat alarm delay circuit 1 1/10 1/10 1/10 K Min. Discharge Temp. correction 1/10 K 1 0 2 2 20 5 1 6 1 1/10°C 0 0 5 0.5 0 0 30 1.0 100 3.0 0 2.0 100 1.0 0 30 3 0 0 - 1 0 - 4 0 - 15 0 - 3 0 = Superheat control 1 = Economizer control (only R410A, R32, R407C) 0 = Standard control coil heat exchanger 1 = Slow control coil heat exchanger 2 = fixed PID 3 = fast control plate heat exchanger 4 = Standard plate heat exchanger 0 = R22 1 = R134a 2 = R410A 3 = R32 4 = R407C 5 = R290* 6 = R448A 7 = R449A 8 = R452A 9 = R454A* 10 = R454B* 11 = R454C* 12 = R513A 13 = R452B* 14 = R1234ze* 15 = R1234yf * *) (EXN not permitted) 0 = PT5N-07... 1 = PT5N-18... 2 = PT5N-30... 3 = PT5N-10P-FLR 10 - 100 1 - 30 0 - 2 0 = Disabled 1 = Enabled auto-reset 2 = Enabled manual reset Range = 3-30K with 1uL = 1,2 Range = 0.5-30K with 1uL = 0 0 - 1 0 = Disabled 1 = Enabled See MOP table 0 - 2 0 = Disabled 1 = Enabled auto-reset 2 = Enabled manual reset -0.8 - 17.7 5 - 199 0.5 - 18 0 - 2 0 = Disabled 1 = Enabled auto-reset 2 = Enabled manual reset -20 - 5 5 - 199 0.1 - 10 Display 1/10K 1 - 350 0.1 - 30 0 - 1 0.1 - 10 Display 1/10K 0 = Hot Gas temperature input 1 = ModBus command Display 1/10K 1 - 350 0.1 - 30 Display 1/10K 0 - 1 0 = Disabled 1 = Enabled auto-reset 16 - 40 1-15 0 - 10 Positive correction to the discharge temperature to take the sensor location in account. 7 EXD-HP12_TB_EN_0321_R02.docx EXD-HP1/2 Stand-alone Superheat / Economizer Controller Configuration parameters (only for EXD-HP2) Modbus address dec. / hex. Display code Description Unit Default value Range Remarks Parameters Circuit 2 803 / 0x323 804 / 0x324 805 / 0x325 806 / 0x326 807 / 0x327 808 / 0x328 809 / 0x329 810 / 0x32A 811 / 0x32B 812 / 0x32C 813 / 0x32D 814 / 0x32E 815 / 0x32F 816 / 0x330 817 / 0x331 818 / 0x332 819 / 0x333 820 / 0x334 821 / 0x335 822 / 0x336 823 / 0x337 824 / 0x338 2u4 Control mode circuit 2 2u0 Refrigerant circuit 2 2uP Pressure sensor 2: type 0 = Standard control coil heat exchanger 1 = Slow control coil heat exchanger 0 0 - 4 2 = fixed PID 3 = fast control plate heat exchanger 4 = Standard plate heat exchanger 0 = R22 1 = R134a 2 = R410A 3 = R32 4 = R407C 5 = R290* 2 0 - 15 6 = R448A 7 = R449A 8 = R452A 9 = R454A* 10 = R454B* 11 = R454C* 12 = R513A 13 = R452B* 14 = R1234ze* 15 = R1234yf * *) (EXN not permitted) 1 0 - 3 0 = PT5N-07... 1 = PT5N-18... 2 = PT5N-30... 3 = PT5N-10P-FLR 2uu Start opening valve 2 % 20 10 - 100 2u9 Start opening duration valve 2 Sec. 5 1 - 30 2uL Low superheat alarm mode circuit 2 1 2u5 Superheat setpoint circuit 2 1/10 K 6 0 2 0 = Disabled 1 = Enabled auto-reset 2 = Enabled manual reset Range = 3-30K with 2uL = 1,2 Range = 0.5-30K with 2uL = 0 2u2 MOP mode circuit 2 1 0 1 0 = Disabled 1 = Enabled 2u3 MOP sat. temp. circuit 2 1/10 °C See MOP table 2P9 Low pressure alarm mode circuit 2 0 0 - 2 0 = Disabled 1 = Enabled auto-reset 2 = Enabled manual reset 2PA Low pressure alarm cut-out circuit 2 1/10 bar 0 -0.8 - 17.7 2Pb Low pressure alarm delay circuit 2 Sec. 5 5 - 199 2Pd Low pressure alarm cut-in circuit 2 1/10 bar 0.5 0.5 - 18 2P4 Freeze alarm mode circuit 2 0 0 - 2 0 = Disabled 1 = Enabled auto-reset 2 = Enabled manual reset 2P2 Freeze alarm cut-out circuit 2 1/10 °C 0 -20 - 5 2P5 Freeze alarm delay circuit 2 Sec. 30 5 - 199 2P- Superheat control circuit 2 fixed PID Kp factor 2i- Superheat control circuit 2 fixed PID Ti factor 2d- Superheat control circuit 2 fixed PID Td factor 1/10 1.0 0.1 - 10 Display 1/10K 100 1 - 350 1/10 3.0 0.1 - 20 Display 1/10K 2uH High superheat alarm mode circuit 2 0 0 - 1 0 = Disabled 1 = Enabled auto-reset 2uA High superheat alarm setpoint circuit 2 1/10 K 30 16 - 40 2ud High superheat alarm delay circuit 2 Min. 3 1-15 Configuration parameters EXD-HP1/2 & Discharge Temperature Control Modbus address dec. / hex. Display code Description Unit Default value Range 825 / 0x339 831 / 0x33F 832 / 0x340 833 / 0x341 Et Valve type for HP1 & HP2 1E3 Discharge Temperature Setpoint 1E4 Discharge Temperature Control band 1E5 Discharge Temperature limit 0-1 0 85 70-140 20 2-25 100 120 100-150 Remarks 0 = EXM/L 1 = EXN (see notes page 2) EXD-HP2 can drive two similar valves i.e. both valves must be either EXM/EXL or EXN. Start Setpoint EXD-HP12_TB_EN_0321_R02.docx Emerson Climate Technologies GmbH shall not be liable for errors in the stated capacities, dimensions, etc., as well as typographic errors. Products, specifications, designs and technical data contained in this document are subject to modification by us without prior notice. Illustrations are not binding. The Emerson Climate Technologies logo is a trademark and service mark of Emerson Electric Co. Emerson Climate Technologies Inc. is a subsidiary of Emerson Electric Co.Adobe PDF Library 20.6.74