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Type / N°

Rev.

Date

Page

Total pages

EW055.600D

June 2018

EsiWelma

s.r.l.

JP4

Open = Pulser ChA active Hight
Closed = Pulser ChA active Low

5. HARDWARE PERSONALIZATION

On the CPU 3 selectors (JP) are available. They are placed in the case protected by the
metrical seal and allow to modify the functionality of the computing head as follows::

JP1

Delivered quantity expressed in Kg or in Smc

Open

Smc

JP2

Enables and performs Set-up operations

Open

normal

delivering

set-up

enabled

JP3

Forces the head to use the parameters in congruence with the Euro,
unbounded from the current set-up:

Open

utilizes

Set-up values

utilizes values in congruence to

Euro

Photo 4: Set-up jumper on CPU

VP24  24V Pulser supply
VP12  12V Pulser supply
VP5      5V Pulser supply

JP10 - JP11

Rigth

= Impulsive Meter

Left

= Modbus Meter

JP2

Open

→

Delivery

Closed

→

Setup

JP3

Open

→

Valuta

Closed

→

Euro

JP1

Open

→

Closed

→

Smc

Содержание TW1-M

Страница 1: ...055 600D D 4L 6th June 2018 1 43 EsiWelma s r l TW1 M and TW1nA M Computer Head User Guide CNG Version Methane EsiWelma s r l Via F lli Canepa 134d e 16010 Serra Ricc Genoa ITALY Tel 39 010 754211 Fax...

Страница 2: ...Non fatal errors 13 3 3 Error review table 14 3 4 Operating modes 17 3 4 1 System adaptation 17 3 4 2 CNG dispenser adaptation 17 3 5 Types of refuelling 17 4 PROCEDURES 18 4 1 Reading from the absol...

Страница 3: ...lization saving data 27 Figure 21 Changing Password 28 Figure 22 Inserting Password 29 Figure 23 Password changing request 29 Figure 24 Visualization saving unit price 29 Figure 25 Entering Password 3...

Страница 4: ...anging 1 2 Technical data Power supply 230Vac 10 Power consumption 10VA Temperature min 40 C max 70 C Photo 3 Display Humidity no dew 95 Max flow rate 3 5Kg s or 3 5Sm s see Setup Measure 1dag or 10dm...

Страница 5: ...8 2 Neutral Computer Head Power Supply 230Vac Impulsive Mass Flowmeter 7 not Used 6 0V Flow Meter 8 Max Pressure TB3 5 not Used 4 IN from IMF 3 not Used 1 Nozzle 2 0V Field Pulse Version ModBus Versio...

Страница 6: ...the data reported on the program RAM it checks the writing and reading ability of data RAM EEROM it checks the congruence of the data reported in EEROM DISPLAY it checks the connection status of the d...

Страница 7: ...tart with a visual control by display and a subsequent activation of the solenoid valves Display All digits show 8 then blank and at last 0 00 Euro and 0 00 kg Each phase takes about 1 second in this...

Страница 8: ...nk in completely filled 2 2 2 Pre set value delivery The computing head provides to stop delivery once the pre set value is reached both in case of programming by pre set buttons and in case of Host p...

Страница 9: ...sing the corresponding button 2 Press number buttons with comma if necessary to pre set value 3 Press ENTER Now the display of the computing head shows on the LCD the amount upper line or the quantity...

Страница 10: ...2 4 Euro The standard computing head connection is foreseen with three cables TX RX Gnd The computing head by its set up can work with different foreign currencies operator can set the decimal digits...

Страница 11: ...MAN bistable contact of the 3 position key selector contact closed in position Served 2 5 2 Sequence of delivery The 3 position key selector allows the operator to choose the operating mode of the dis...

Страница 12: ...lly using the key selector in reset position According to the standard or the Self Service mode the cumputing head works automatically detecting the presence of the I O Expansion switch board The card...

Страница 13: ...code and does not re start To start again it must be reset by switching off power supply for some second Data congruence EPROM Error RAM Error EEROM Error Presence of totalizer Error Presence of opti...

Страница 14: ...NF errors Protocol Code E E Ascii 3 0 1 1 1 0 1 5 2 2 4 7 4 2 G 0 G 0 D 4 G 7 D 6 D 5 G 1 Hex 0x33 0x30 0x31 0x31 0x31 0x30 0x31 0x35 0x32 0x32 0x34 0x37 0x34 0x32 0x47 0x30 0x47 0x30 0x44 0x34 0x47 0...

Страница 15: ...p data or they are not conformable the computing head does not deliver and operator must input these data Error Code ErSU Verifies the status of the pressure sensor or pressure sensor switch and in ca...

Страница 16: ...EP When nozzle hangs on the computing head checks RAM If something is wrong it doesn t allow the delivery Error Code FErA When nozzle hangs on the computing head checks the E rom checksum If something...

Страница 17: ...implants that have a 3 level compression system installed 3 4 2 CNG dispenser adaptation The management of the solenoid valves is adaptable on the type of dispenser installed EV1 active only during t...

Страница 18: ...ed circuit connected to the same cable of the display Figure 10 Visualization waiting procedure selecting Procedureblack t reading absolute totalizer Procedurered S Set up computing head Para meters c...

Страница 19: ...eviously changed the default password is 20000 To insert the correct code follow this procedure To enter the SETUP procedure operator has to set JP2 Jumper closed SETUP can t be done if JP2 Jumper is...

Страница 20: ...pressure 150 250 1 207 barg 17 tC Compesation temperature 0 50 1 21 C 18 Ot Temperature offset 20 1 10 C 19 tF Duration of the first puff 2 60 1 4 s 20 tS Duration of the second puff 1 30 1 10 s 21 dr...

Страница 21: ...00 bps L0 Low flow rate 1st 2nd level Represents the delivering value in dag s under this value the computing head switch on the next level or stop the delivery if mono level t0 Acquisition delay L0 R...

Страница 22: ...able switch on 40bar EV closed 2 s 13 enable switch on 50bar EV closed 2 s 14 enable switch on 60bar EV closed 2 s 15 enable switch on 70bar EV closed 2 s AC Pressure compensation The computing head p...

Страница 23: ...ot scaled value 1 amount X 10 one digit left scaled value 2 amount 10 one digit right scaled value Pr Kind of preset Depending on this parameter the computing head can deliver see also P1 and P2 param...

Страница 24: ...max pressure Ar Amount rounding It specifies how the rounding shall be performed 0 no rounding on the last digit 1 if uc 5 last digit exceeds rounding 10 if uc 5 last digit defects rounding 0 2 if uc...

Страница 25: ...the Jumper JP1 that allows the delivery in Smc has been set P1 Preset value push button 1 Preset value used by the computing head when button 1 is pressed It can be programmed in or local currency fo...

Страница 26: ...lling station The whole sequence is automatic when it stops parameter is set to zero and the computing head is ready to deliver In case a black out occurs during this procedure parameter is set to zer...

Страница 27: ...rate from local currency to Euro is composed of 1 unit and 5 decimals for example in the case of the old French franc value is 6 55957 CF values are determined by DGII C 4 99 standards For the setting...

Страница 28: ...ord value 3XXXX It only allows to reset previous passwords The starting value is internally connected to the firmware and communicated to the customer at the moment of sales it cannot be changed Passw...

Страница 29: ...tion is not considered metrically relevant If password is not correct the computing head immediately exits the set up procedure and returns to stand by mode If password is correct the unit price can b...

Страница 30: ...the delivering procedure indicating the relevant error Press green U button to enter the procedure The simulated errors are the following reported in the ERROR CODES see 3 3 To evidence the occurring...

Страница 31: ...livered quantity expressed in Kg or in Smc Open Kg Close Smc JP2 Enables and performs Set up operations Open normal delivering Close set up enabled JP3 Forces the head to use the parameters in congrue...

Страница 32: ...P10 JP11 on the right Rating 5V 200mA MAX insert the Jumper in VP5 position 12V 100mA MAX insert the Jumper in VP12 position mutual exclusive 24V 50mA MAX insert the Jumper in VP24 position Exit chann...

Страница 33: ...an external keyboard operator can choose Euro or litre pre set Photo 5 Pre set keyboard adjustement on customer s demand 6 2 16 digit on 2 line Display to be implemented If necessary a second small d...

Страница 34: ...pansion device I O This is particularly effective in case of personalization for self service systems in which according to current rules controlling a greater number of field devices is necessary Thi...

Страница 35: ...2V 24V Power sup curr MAX 200mA 100mA 50mA Serial line RS485 Standard ModBus Terminal Board TB1 See Warning WARNING The below reported electrical connection schemes do not absolve the installer from r...

Страница 36: ...RS485 B 4 RS485 A 3 12Vcc Flowmeter 1 Nozzle 2 0V Field TB3 ModBus Mass Flowmeter ModBus Serial Version Pulse Version 2 0V Field 1 Nozzle 3 not used 4 IN from IMF 5 not used TB3 8 Max Pressure 6 0V Fl...

Страница 37: ...Display Link TB1 TB4 TB4 1 TR1 4 TR2 3 0V Field 2 TR1 5 TR2 6 0V Field 5 2 5 1 2 1 4 7 3 3 7 4 MTL 7756ac TR2 PT100 Ambiente Temperature dispenser ground Fluid Temperature opzional TR1 PT100 MTL 7756...

Страница 38: ...p u L TB2 TB3 TB6 TB4 TB1 TB7 TB8 Field Links Power Links Display Link J1 TB5 Failure Output I O Expansion board 8 7 6 5 4 3 2 1 0V Auto Man Auto closed Reset NO Dead Man control NO Self Service conne...

Страница 39: ...acteristics Voltage max 270Vca Depending on the output device used Rel Standard Current max 3A1 Solid State Device Atex Current max 1A Terminal Board TB6 Optional Electrovalves Power Supply 230Vac or...

Страница 40: ...TB7 Terminal Board TB8 TB7 1 Lamp Common 3 Green Lamp TB8 TB7 TB4 TB3 TB2 TB1 TB5 Display links Power links Field links Lamp Power Supply 230Vac or 24Vac 2 Red Lamp TB6 Display link Power links Field...

Страница 41: ...Electromagnetic condition CLASS E2 S n Dtd II 3G Ex nA IIC T4 X 8 IDENTIFICATION OF COMPUTING HEAD TW1 In the respect of the standards in force an identification plate of the product is applied as sho...

Страница 42: ...cal as well as a horizontal position Some tangs assure a correct clamping Figure 30 Clamping of the CPU box There are some clamping points also for displays The tangs settled in the centre are not cla...

Страница 43: ...ners CPU and Display from the dispenser must be fastened to a part that cannot be moved from the dispenser Photo 13 Computing Head TW1 M and TW1nA M Display rear view Neon tube back lighting version L...

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