VEX 100 PA - Osaka Solutions
Contents
1. documentation available when the VEX 100 PA has been released see below reference Danfoss DKRCC PD VD1 C6 02 520H8021 Danfoss A S AC MCI sw 2014 07 Sporlan 92008 Bulletin 100 20 RACE Catalogue 100 20 3 EDEV 2 UK 02 2013 Emerson FC TD EX4 8 July 2008 In any case for each valve the only reference is given by the manual released by the manufacture together with the valve Osaka Solutions can t be considered responsible for any change made by the manufacturer and reported on the manufacturer manual 4 8 2 Manual setting of valve To set the valve manually act the according to the following procedure a Set tEP 0 b Then set following parameters LSt USt Sr CPP CHd according to the valve manual 4 9 VALVE CONNECTION 4 9 1 TERMINALS FOR VALVE CONNECTION Upper Level Wi aNs 4 WIRES VALVES BIPOLAR Connection ALCOEX SPORLAN DANFOSS numbering SEI SEH ETS 4 V lvulas 5 6 hilos unipolares Connection EMERSON SAGINOMIYA numbering EX3 4 BLUE ORANGE ORANGE 2 BLACK SPORLAN 3 BROWN YELLOW YELLOW WHITE BLACK BLACK 5 Common GREY GREY GREY AFTER MAKING THE CONNECTION PLEASE SWITCH OFF AND ON THE VEX CONTROLLER IN ORDER TO BE SURE OF THE RIGHT POSITIONING OF THE VALVE 4 10 ABSOLUTE MAXIMUM POWER VEX100 PA is able to drive a wide range of stepper valves in the following table are indicated the maximum values of current that the actuator can supply to the stepper wir2. t be considered responsible for any change made by the manufacturer and reported on the manufacturer manual Manual valve setting To set the valve manually act the according to the following procedure a Set tEP 0 b Then set following parameters LSt USt Sr CPP CHd according to the valve manual Kind of motor movement HAF FUL HAF half step Use this setting for the unipolar valve FUL full step Use this setting for the bipolar valve Minimum number of steps 0 to USt 10 it permits to select the minimum number of steps At this number of steps the valve should be closed So it s necessary the reading of manufacturer datasheet to set correctly this parameter It s the minimum number of steps to stay in advised range of functioning After changing this parameter the valve will have to be reinitialized The device performs this procedure automatically and restarts its normal functioning when the programming mode ends OSAKA User Manual VEX 100 PA V5 5 Maximum number of steps LSt to 800 10 it permits to select the maximum number of steps At this number of steps the valve should be completely opened Read the datasheet provided by manufacturer of the valve to set correctly this parameter It s the maximum number of steps to stay in advised range of functioning After changing this parameter the valve will have to be reinitialized The device performs this procedure automatically and restar
3. All pressure parameters are relativesor absolutes depending on the PrM parameter REGULATION Kind of gas type of gas used by plant This is a fundamental parameter for correct functioning of all sysiem The table below contains the refrigerant gases managed by the XEV22D and their operating temperature LABEL REFRIGERANT OPERATING RANGE R22 r22 Cs 50 6 0 C 58 120 F 134 134A 70 6 02 C 94 120 F 404 r404A_ 50 60 C 58 120 F 410 r410 50 60 C 58 120 F 47F 50 60 C 58 120 F 290 r290 Propane__ _ 50 60 C 58 120 F _ 450 r450A_ 45 60 C 69 120 F 513 513s 45 60 C 69 120 F 449 r449A 45 60 C 69 120 F Reaction time 1 100s 0 automatic time adjustment time delay between valve position adjustments It s the time between the valve adjustment command and when the valve is moved El With rEt 1 the valve is moved continuously with rEt 10 the valve is moved every 10s with rEt 0 the reaction time is calculated automatically by the system according the SH variation The range is between 6 60s Probe Error opening percentage 0 to 100 if a temporary probe error occurs valve opening percentage is PEo until PEd time is elapsed If PEO is different from 0 it assures cooling also with probe error because even if the device cannot calculate superheat the valve can work at PEo percentage Probe Error delay before stopping regulation 0 to 239sec 240 On unl
4. In case of defective product under warranty or out of that period it should contact the post sales service to perform the necessary steps Request document repair RMA by mail or fax and complete it is necessary send the RMA and the device to SAT OSAKA by method prepaid OSAKA User Manual VEX 100 PA V5 9
5. OINT SP 1 Press the set buttons until the set point will be showed 2 To come back to see temperatura wait about 5s or press newly SET key 6 3 HOW TO MODIFY THE SET POINT SP To change the set point value operate as follows 1 Press SET until the set point will be showed 2 Use A and W to change its value 3 Press SET to store the new value 6 4 HOW TO ENTERING PR1 PARAMETER MENU To enter to PR1 level menu 1 Press SET W about 3 seconds 2 Instrument shows first parameter in Pr1 menu 6 5 HOW TO ENTERING PR2 PARAMETER MENU To enter to PR2 parameters list 1 Enter to Pr1 2 Select PR2 parameter and press SET 3 The PAS label will be shown then 0 with O blinking 4 Insert 321 password through UP and DOWN buttons then press set to confirm 6 6 HOW TO CHANGE A PARAMETERS VALUE To change the parameter s value operate as follows 1 Enter the Programming mode by pressing the SET W button for about 3s OSAKA User Manual VEX 100 PA V5 4 2 Select the required parameter 3 Press the SET button to display the value 4 Use A and W tochange the value 5 Press SET to store the new value and move to the following parameter To exit press 4 and W orwait 30s without pressing any button NOTE the set value is stored even when the procedure is exited by waiting the time out to expire 7 PARAMETER LIST NOTE
6. X 100 PA V5 7 9 DISPLAY MESSAGES CAUSE OUTPUTS MESSAGE None of digital inputs configured as CCL are activated The Ped time is PF elapsed and the regulation is stopped Valve closed Valve closed after PEd Thereisa orobe error fault and PEd fault and PEd High superheat alarm By PI LSH Low superheat alarm Valve Closed TRE see LPL parameter ee Operating see dML parameter ressure mh Operating see dML parameter ressure Start Function enabled see SFd parameter Stp Regulation stop caused by Std and Sti EE Memory error Valve closed 9 1 ALARM RECOVERY Probe alarms P1 P2 start few seconds after the fault in the probe they automatically stop few seconds after the probe restarts normal operation Check connections before replacing the probe Max And min Alarms HSH LSH MoP and LoP automatically stop as soon as the variable returns to normal values The instrument is provided with an internal check verifying memory integrity Alarm EE will flash when a failure in the internal memory is detected In such case call the service 10 TECHNICAL DATA Housing self extinguishing ABS Case 4 DIN modules 70x135mm with male and female connectors depth 60mm Mounting DIN RAIL mounted in an omega 3 din rail Protection IP20 Connections pluggable screw terminal block wiring Power supply 24Vac dc 10 Power absorpti
7. e The instrument shall not be used for purposes different from those described hereunder It cannot be used as a safety device bA Check the application limits before proceeding Osaka Solutions reserves the right to change the composition of its products even without notice ensuring the same and unchanged functionality V EX 1 00 PA 1 3 SAFETY PRECAUTIONS CONTROLLER FOR ELECTRONIC e voltage is correct before connecting the EXPANSION VALVES e Do not expose to water or moisture use the controller only FOOTSTEPS within the operating limits avoiding sudden temperature changes with high atmospheric humidity to prevent formation of condensation e Warning disconnect all electrical connections before any kind of maintenance e Fit the probe where it is not accessible by the End User The instrument must not be opened e Incase of failure or faulty operation send the instrument back to the distributor or to Dixell S r l see address with a detailed description of the fault e Consider the maximum current which can be applied to each relay see Technical Data e Ensure that the wires for probes loads and the power supply are separated and far enough from each other without crossing or intertwining e Incase of applications in industrial environments the use of mains filters our mod FT1 in parallel with inductive loads could be useful 2 GENERAL DESCRIPTION The VEX 100 PA module is able to drive a large var
8. ed by relay ALL SH PrE di ALL all alarm SH superheat alarm PrE pressure alarm di activation only when digital input configured as rL is active Lower Pressure Limit for superheat regulation PA4 to P20 bar PA4 to P20 psi when suction pressure comes down to LPL the regulation is performed with a LPL fixed value for pressure When suction pressure comes back to LPL the normal pressure value is used related to PrM parameter Maximum Operating Pressure threshold LoP to P20bar LoP to P20 psi if suction pressure exceeds maximum operating pressure value the instrument signals this situation with an alarm LED related to PrM parameter Lowest Operating Pressure PA4 to MoP bar PA4 to MoP psi if the suction pressure comes down to this value a low pressure alarm will be signalled with an alarm LED related to PrM parameter Pressure alarm Hysteresis 0 1 to 5 0 bar 1 to 72 osi pressure hysteresis to disable alarm signalling Delta MoP LoP 0 to 100 when a MoP alarm occurs valve will close of the dML percentage every one second until MoP alarm is active When LoP occurs valve will open of the dML percentage every one second until LoP alarm is active Maximum SuperHeat alarm LSH to 80 0 C LSH to 144 F when superheat exceeds this value an high superheat alarm will be signalled after interval Lowest SuperHeat alarm 0 0 to MSH C 0 to MSH F when superheat goes down to this value a low superheat alarm is s
9. iety of USER MANUAL stepper electronic expansion valves XEV22D permits to regulate the superheat SH of the fluid CONTENT that runs into refrigerating unit in order to obtain optimized performance and a functioning of the evaporator independent 1 General warning by climatic or load conditions VEX 100 PA modules are 2 General description equipped with two probe inputs one for 4 to 20mA or 0 to 5V 3 Probes related to the VEX 100 PA pressure transducer and another one for NTC EU NTC US or 4 Connections Pt1000 temperature probe 5 Front panel A LAN connection permits to transmit the pressure signal to 6 User interface others VEX modules in order to use only 7 Parameter list one pressure transducer in multiplexed cabinet applications 8 Forced opening There are also two configurable digital inputs the first one is 9 Display messages free of voltage and the other ones is at 10 Technical data high voltage in order to simplify connections with cooling 11 Standard values request signal 12 Warranty With the useful display it s possible to see the value of superheat SH the degree of opening of the 1 GENERAL WARNING valve or the probe values the local keyboard allows programming the instrument without any other 1 1 PLEASE READ THIS MANUAL BEFORE USING THE DEVICE This manual contains the information necessary for proper installation and instructions for use and maintenance of the device so please read the foll
10. ignalled after interval SHd SuperHeat alarm Hysteresis 0 0 to 25 5 C 1 to 77 F hysteresis for superheat alarm deactivation SuperHeat alarm activation delay 0 to 255 s when a superheat alarm occurs the delay time SHd have to expire before signalling this alarm Pressure stability index 0 240s The value used for the SH calculation is the average value of the pressure in the tdS time Suggested values tdS 5 10 for heat exchanger or condensing unit tdS 1 6 for supermarkets Temperature stability index 0 240s The value used for the SH calculation is the average value of the temperature in the tdt time A value between 1 3 his suggested DISPLAY Local display SH PEr P1 P2 SH superheat PEr valve opening percentage P1 value of temperature measured P2 pressure measured by P2 probe Temperature measurement units C F C Celsius degree F Fahrenheit degree NOTE by changing measurement unit the regulation parameters have to be correctly changed Pressure Measurement units bAr PSi bAr bar PSi psi NOTE by changing measurement unit the regulation parameters have to be correctly changed Resolution only C dE in dE decimal format in integer format Pressure visualization Mode rEL AbS rEL relative pressure AbS absolute pressure All pressure parameters depend on this parameter Cooling Percentage read only Display the cooling percentage Temperat
11. imited if probe error duration is higher than PEd valve will close completely and Pf message will be showed With PEd on valve opening is PEo until probe error finishes Type of Stepper motor UP bP it permits to select the kind of valve UP Unipolar valves bP Bipolar valves This parameter has to be adjusted before connecting the valve Predefined valve selection 0 to14 MODEL LSt uSt CPP CHd Sr tEu HSF steps 10 steps 10 mA 10 mA 10 step s bip unip Half full Danfoss ETS 25 50 7 262 bP FUL Danfoss ETS 100 Danfoss 10 353 bP FUL 11 381 bP FUL Sporlan SEI 0 5 11 159 bP FUL Sporlan SER 1 5 20 Sporlan SEI 30 Sporlan SER I 250 bP FUL G J K Sporlan SEI 50 638 bP FUL 159 bP FUL 319 bP FUL Sporlan SEH I 100 638 bP FUL Sporlan SEH I 175 638 bP FUL Emerson EX4 EX5 75 bP FUL EX6 Emerson 12 EX7 160 i bP FUL Emerson 13 EX8 500 260 500 bP FUL Emerson uP HAF 14 EX3 33 Liability Limitation All the pre sets have been done according to the documentation available when the VEX 100 PA has been released see below reference Danfoss DKRCC PD VD1 C6 02 520H8021 Danfoss A S AC MCI sw 2014 07 Sporlan 92008 Bulletin 100 20 RACE Catalogue 100 20 3 EDEV 2 UK 02 2013 Emerson FC TD EX4 8 July 2008 In any case for each valve the only reference is given by the manual released by the manufacture together with the valve Osaka can
12. ing The Osaka transformer to use is the TF20 24 NOTE the electrical power absorption of the valve can be unrelated to refrigeration power that valve has Before using the actuator please read the technical manual of the valve supplied by the manufacturer and check the maximum current used to drive the valve in order to verify that they are lower than those indicated below OSAKA User Manual VEX 100 PA V5 3 4 wires 0 9 A VALVE TYPE UNIPOLAR VALVES Maximum Current 5 6 wires 0 33 A 4 11 RS 485 SERIAL LINE All models can be connected to the monitoring and supervising system XWEB3000 If Mod Std standard ModBUS RTU protocol is used if Mod AdU custom XWEB library is required This last configuration makes possible to use the same serial address of the thermostat that gives the cooling request to VEX In this way it s possible to reduce the number of addresses used 5 FRONTAL PANEL Superheating MOP r r Unit of measure Valve close opening RS485 Valve l Pressure probe To display and to modify the set point In SET programming mode its selects a parameter or it confirms a value Push to display pressure to display the value 0 100 for valve opening a few seconds A pressure to display the value of pressure for a few seconds By pressing and releasing this key it s possible to see the values of the probes PRB In programming mode it
13. n CF Temperature oG F C Pro measurement units Pressure measurement unit bAr PSI bAr Pr2 Resolution only C dE in dE Type os pressure Absolute relative EAR tE re CLP Cooling call Read Pri percentage Temperature probe Pri value Pressure probe value Temperature converted from pressure probe Super heat value z2 al a a STH Superheat set point Pri value Actual Opening 0 100 Pry percentage Free of voltage digital On off OFF Pri input state Main voltage digital On off OFF Pri input state Serial address 1 247 1 Pr2 ModBus type Adu std Std Pr2 yD D S Release software Pr2 Second level menu onl ae a Pr 12 WARRANTY This device has a guarantee in form of repair or replacement by manufacturing defects in materials of 12 months from the date of purchase OSAKA SOLUTIONS automatically void this guarantee and is not liable for any damages deriving from Use installation or use and handling undue others than those described above and in particular differs from the safety requirements established by the regulations Use in applications machines or electrical panels that do not provide adequate protection against liquids dust grease and electric shocks to the installation conditions made The inexperienced handling and or alteration of the product The installation use in applications machines or electrical panels do not comply with the valid norm
14. ned staff regulation enabling Atu Superheat set point 0 1 12 0 dFce Derivativetime 0 255 2 Pr2 PROBE PARAMETERS Probe value at 4mA 10 or at OV relate9d to P20 or at 5V related to RA PrM EA eea Temperature probe 12 0 Pro calibration 12 0 DIGITAL INPUTS Enable pressure Yon probe sending in KAN PrM M Probe value at 20mA Pressure probe 12 0 ap calibration 12 0 Typeof temperatura PEM probe NTC PtM Pr2 input polarity Freeot voltage digital CCL rL CCL e input function VEX 100 PA V5 8 Digital input 1 free of voltage activation delay Main voltage digital input function voltage activation ALARMS Alarm delay after 0 0 Type of alarm ALL SH Pro signalled by relay PRE DI Alarm relay silencing Y n Lower pressure limit LPL for superheat lt 5 oO ie U N Pr2 Pr2 Z PA4 regulation related to PrM parameter Maximum operating pressure LoP threshold related to 11 0 Pr2 rM parameter Minimum suction PAA pressure limit related LOP Pr2 to PrM parameter al Hysteresis L Delta MoP LoP 0 100 Tu 5 r2 09 U U N N O oO 0 5 PHy dM o i P MSH Maximum superheat LSH alarm A Lowest superheat 0 0 Pr Superheat hysteresis ee Pr2 SHa Superheat alarm ae i activation dela tas Pressure stability err Pro index tt Temperature stability 4 549 Pro index DISPLAY SH Per AARIN P1 P2 e
15. on depending on connected valve 20VA max Display three digits with icons red LEDs height 14 2 mm Inputs 1 temperature probe PT1000 probe 50 to 110 C 58 to 230 F NTC probe 40 to 110 C 40 to 230 F 1 pressure transducer 4 to 20mA or 0 to 5V Digital inputs 1 free of voltage 1 high voltage Outputs for valve bipolar or unipolar valves Data storage on the non volatile memory EEPROM Kind of action 1B Pollution degree normal Software Class A Operating temperature 0 to 55 C 82 to 131 F Storage temperature 25 to 60 C 13 to 140 F Relative humidity 20 to 85 no condensing Resolution 0 1 C or 1 F Precision a 25 C 77 F 0 7 2 5mm2 OSAKA User Manual 11 STANDARD VALUES Label Description __ Range Default Level po REGULATION _ i REGULATION See Kind of gas paramete 404 Pr2 r ast FB Ere os moo s0 Pre E3 Probe Error opening 0 100 percentage Probe Error delay 0 299 before stopping regulation motor Automatic Valve cca O ai Pro configuration 14 Kind of driving pat FUL Pre as error Tig e re steps 10 E ove 0 steps Est Extra steps in closing 9 o56 EJ Pro phase a T 10 600 PREET Current per phase 0100 only bipolar valves Holding current per phase only bipolar O 100 ope sat percentage Pilot workload percentage FoP Forced opening time O 100 out nu PI PARAMETERS trai
16. ore connecting cables make sure the power supply complies with the instrument s requirements Separate the probe cables from the power supply cables from the outputs and the power connections 4 2 WIRING CONNECTIONS RELAY OUT 26 0y Ar3 A Digita input 2 J D0 009 0 Wa apo we ne E i ya gt Rela 24V w2 W1 12 IIS fee a o ol HOT KEY J Ww ve pq 23 3 WT SS ES YE Vi wa ae OLoRotolorlolorlels Temp sensor mee White W 4 20MA nA HES Dil os ap pressure P2 pressor sensor repeate 4 3 WIRING GUIDELINE eee eee 22 2 SHIELDED E and Digital Input BELDEN 8761 m 22 2 SHIELDED E BELDEN 8761 Wa 22 2 SHIELDED E BELDEN 8761 Use valve manufacturers harness Stepper valve with a m ximum length not exceed 10 meters 30 feet Power loads and Allow a m ximum wire size of 14 valve AWG 2 mm 4 4 TEMPERATURE PROBE MOUNTING Advised temperature probe placement is illustrated in figure nearby Between 0 and 180 inclination degrees respect to horizontal pipe section Terpen iN Robe mmm 180 0 Pipe F 4 5 PROBE CONNECTION 4 5 1 General warnings Pressure probe 4 20mA or ratiometric respect the polarity If using terminal ends be sure there are no bear parts which could cause short circuiting or introduce noise disturbance at high frequencies To minimize the induced disturbances use shielded cables wi
17. ore connecting the valve ALWAYS CONNECT OR DISCONNET THE VALVE WHEN THE CONTROLLER IS NOT POWERED CONFIGURE THE VALVE ON THE VEX 100 PA BEFORE CONNECTING THE VALVE 1 BEFORE CONNECTING the valve to avoid possible problems configure the driver by making the right changes on the parameters 2 The max distance between an VEX controller and a valve must not exceed 10 m To avoid any problems use only shielded cables with section greater than or equal to 0 325 mm AWG22 3 Select the kind of motor tEU parameter and check if the valve is present in tEP parameter table reported here below tEP LSt ust CPP CHd or tEu HSF steps 10 steps 10 mA 10 mA 10 step s bip unip Halfffull Danfoss 1 ETS 25 50 T 262 10 10 300 bP FUL Danfoss 2 ETS 100 10 353 10 10 300 bP FUL Danfoss 3 ETS 11 381 10 10 300 bP FUL 250 400 Sporlan l 4 SEI 05 11 0 155 16 5 200 bP FUL Sporlan l 5 SER 1 5 20 0 155 12 5 200 bF FUL porlan i 6 SEI 30 0 319 16 5 200 bF FUL Sporlan T SERII 0 200 12 5 200 bF FUL GJK Sporlan 7 8 SEJ 50 0 638 16 5 200 bF FUL Sporlan 9 SEH I 100 0 638 16 5 200 bF FUL Sporlan l 10 SEH I 175 0 638 16 5 200 bF FUL Emerson 11 EX4 EX5 5 T9 50 10 500 bP FUL EX6 12 aee 10 160 75 235 50 bP FUL a Emerson i 13 EX8 500 10 260 80 50 500 bF FUL Emerson uP HAF 14 EX3 4 33 0 0 50 Liability Limitation All the pre sets have been done according to the
18. owing instructions carefully This documentation has been made with care however OSAKA assumes no responsibility for the use of it The same applies to each person or company involved in the creation of this manual This document is the exclusive property of which forbids any reproduction and disclosure and part thereof unless it is expressly authorized OSAKA reserves to provide functional changes at any time without notice 1 2 PLEASE READ BEFORE USING THIS MANUAL This manual is part of the product and should be kept near the instrument for easy and quick reference OSAKA User Manual devices To complete instrument equipment a RS485 serial link permits to connect VEX 100 PA to Osaka monitoring and supervising systems 3 PROBES RELATED TO THE VEX 100 PA PP 08 0 5 7 bar Pressure PP 10 0 10 bar 0 PP 30 Temperature NTC 1 IP68 50 120 C PT 1000 FAST 50 110 C 4 CONNECTIONS The instrument is provided with pluggable screw terminal block to connect cables with a cross section up to 2 5 mm2 Heat resistant cables have to be used Before connecting cables VEX 100 PA V5 1 make sure the power supply complies with the instrument s requirements Separate the probe cables from the power supply cables from the outputs and the power connections Do not exceed the maximum current allowed on each relay in case of heavier loads use a suitable external relay 4 1 GENERAL WARNINGS Bef
19. sets the maximum valve opening percentage Forced Opening percentage 0 to 100 nU if FoP nU valve works with regulation algorithm If FoP is different from nU the valve stays at FoP opening percentage This function could be useful during plant starting or during service operations Self self adaptive SH regulation enabling parameter enables the self adaptive regulation of the superheat no standard regulation using the PID parameters Pb rS inC dFC yES self adaptive regulation controller regulates SH automatically setting the PID parameter Minimum STABLE superheat search No yES This parameter enables the search of the minimum stable superheat The lowest admitted value is LSH 2 C Proportional band 0 1 to 50 0 C 1 to 90 F PI proportional band Opening 100 Setpoint seipoin Pb SH Band Offset 12 0 to 12 0 C 21 to 21 F PI band offset It permits to move the proportional band of the PI With rS 0 the band is between SEt to SEt Pb E Opening o 100 toont Selngi Integration time 0 a 255 s Derivative time 0 a 255 s PROBE PARAMETERS Type of Pressure transducer 420 5V LAn it sets type of pressure transducer to use 420 4 to 20mA pressure transducer 5V 0 to 5V ratiometric transducer LAn the pressure signal comes from another VEX module Enable pressure probe sending in LAN n Y if LPP Y the value of pressure read by device is sent in LAN Only one device of
20. slides the codes of the parameters or it increases their values In programming mode it slides the codes of parameters or it decreases their values COMBINACI N DE TECLAS To lock or to unlock the keyboard To enter programming mode 6 1 VEX100 PA LEDS On display there are some luminous dots Their meaning is described in the following table LED MODE Function L ON Low pressure alarm H ON Maximum Operating Pressure alarm gt OFF Valve is completely closed aa BLINKING Valve is moving aed ON Valve is completely opened BLINKING serial communication present gt OFF Serial communication absent ati ON Superheat alarm 6 USER INTERFACE 6 1 FAST ACCESS MENU DURING REGULATION 1 Press and release A button 2 The variable available in the Fast Access menu are CLP Cooling demand percentage tP1 Temperature from Probe 1 PPr Pressure value from Probe2 transducer tP2 Suction temperatura obtained from pressure temperature table SH Value of superheat StH Superheat set point oPP Percentage of valve opening d1S Free Voltage digital input status d2S Main Voltage digital input status VAC 3 Brows parameter labels with 4 and W 4 Press SET to see read only value To change parameter press SET 5 To leave the fast Access men press and release SET A or wait for time out to expire about 3 minutes NOTA IF THE REGULATION IS NOT ENABLED THE CONTROLLER DISPLAYS PMP 6 2 HOW TO SEE THE SET P
21. th the shield connected to earth Temperature probe it is recommended to mount the temperature probe on the outlet of the evaporator heat exchanger and to isolate it properly to detect the gas outlet temperature Set parameter tPP 420 O00 Connect i Brown wire to terminal 19 Brown White White wire to terminal 20 4 20mA Temperature probe Set parameter ttE NTC NTC 10K or HE Ptt Pt1000 or HE CtC NTC US 10K Connect to terminals 13 14 4 6 CONFIGURABLE DIGITAL INPUT CONNECTION The superheat regulation is performed only when the cooling digital input is enabled It s possible to enable the SH regulation via Digital input 1 free voltage contact Use the terminals 13 15 set the parameter i1F CCL its polarity it s set by par i1P Digital input 2 8 9 main voltage contact Use the terminals 8 9 set the parameter i2F CCL its polarity it s set by par i1P Usually the digital input is connected to a thermostat or an activation contact OSAKA User Manual VEX 100 PA V5 2 T Thermostat or activation contact V Stepper valve mono or bipolar P1 Temperature sensor PT1000 o NTC or NTC US P2 Pressure transducer 4 20mA or ratiometric 0 5Vdc 4 7 SUPPLY CONNECTION Power supply VEX 100 PA is powered at 24Vac dc Use Class 2 transformer at list 20VA as the TF20 24 Connect transformer to terminals 11 12 4 8 VALVE CONFIGURATION 4 8 1 Bef
22. the LAN can have LPP Y P20 psi pressure value measured by probe at 4mA or at OV related to PrM parameter to 725 psi pressure value measured by probe at 20mMA or at 5V related to PrM parameter Pressure probe calibration 12 0 to 12 0 bar 174 to 174 psi Type of temperature probe PtM ntC it allows to set the kind of probe used by the instrument PtM PT1000 probe ntC NTC US probe Digital Input 1 Free of voltage digital input polarity cL oP CL activated when closed oP activated when opened Digital Input 1 Free of voltage digital input function CCL rL CCL cooling call rL digital input activates relay Digital Input 1 Free of voltage activation delay 0 to 255 min this activation delay is used only if digital input is configured as rL OSAKA User Manual VEX 100 PA V5 6 LSH Digital Input 2 High voltage digital input polarity CL oP CL activated when closed oP activated when opened Digital Input 2 High voltage digital input function CCL rL CCL cooling call rL digital input activates relay Digital Input 2 High voltage activation delay 0 to 255 min this activation delay is used only if digital input is configured as rL Alarm delay after restarting regulation 0 0 to 42min 00s res 10s time between digital input activation configured as CCL and alarm signalling The LSH alarm is always signalled also during this Type of alarm signall
23. ts its normal functioning when the programming mode ends Extra step in closing phase 0 to 255 10 it sets the number of extra steps the controller performs when the valve is closed at start up to force the closure of the valve Step rate 10 to 600 step sec it is the maximum speed to change step without losing precision losing steps It s advised to stay under the maximum speed Current per phase only bipolar valves 0 to 100 10mA it is the maximum current per phase used to drive valve It s used only with bipolar valves Holding current per phase only bipolar valves 0 to 100 10mA it is the current per phase when the valve is stopped for more than 4 minutes It s used only with bipolar valves Start opening Percentage 0 to 100 opening valve percentage when start function is active and during post defrost phase This phase duration is SFd time Start Function duration 0 0 to 42min 00s res 10s it sets start function duration and post defrost duration During this phase the alarms are not enabled Pilot duty 2 10dec sec To reach the final position the valve moves for Ton sec and stops for Tof sec where Ton and Tof are defined as in the following Ton dty 10s Toff 1 dty 10 s Note with dty 10 the Pilot duty function is disabled With bipolar valve during the Toff time the maintenance current is used Maximum opening percentage at normal Functioning 0 to 100 during regulation it
24. ure Probe value read only it shows temperature probe value from P1 Kua Pressure probe value read only it shows pressure probe value The value depends on PrM hd Temperature from P2 read only it shows temperature obtained from conversion of oressure value a e eer Opening Percentage read only it shows the actual Opening percentage of the valve Free of voltage digital input State read only it shows the free of voltage digital input ba High voltage digital input State read only it shows the high voltage digital input state kal RS485 Serial Address 1 to 247 Identifies the instrument address when connected to a ModBUS compatible monitoring system ModBus AdU Std AdU Only for XWEB systems in this case VEX and thermostatic controller are considered an alone instrument it requires a custom library for XWEB Std to use VEX in stand alone mode in this case normal Modbus RTU protocol is used Parameters map read only it identifies parameters map written by factory Release Firmware read only it shows firmware release Pr2 Second level menu 8 FORCED OPENING If necessary by changing FoP parameter it s possible to force the valve opening For example by setting FoP 50 the valve will be open at half of full scale To disable this function it s necessary to set FoP nU default value The valve opening is enabled only when CCL digital input is enabled OSAKA User Manual VE
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