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Nastec VASCO, Руководство по эксплуатации

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31 

 

 

Increase the time value  ramp Q=0 parameter (Installer Parameters 
value). 

DOL pump stops and starts continuously 

 

Increase 

delta start pressure 

in accordance with chapter 9.1. 

 

Check to see if the water tank and it’s air pressure are correctly set. It 
may be necessary to increase the tank volume or reduce the pre-charge 
pressure. 

Measured pressure p_mis drops too 
much before VASCO starts the pump. 

 

Decrease the delta start pressure (Installer Parameters menu) . 

 

Check to see if the water tank and it’s air pressure are correctly set. It 
may be necessary to increase the tank volume or reduce the pre-charge 
pressure. 

 

Modify the value of ki & kp parameters (Installer Parameters menu).      
At  first, it is suggestable to reduce the Ki value. If it is not enough 
increase of one unit the Kp value. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Содержание VASCO

Страница 1: ...VAriable Speed COntroller Operating manual VASCO manVASCO_eng_05 docx ...

Страница 2: ... control 12 5 1 1 Pressure tank 12 5 1 2 Pressure sensor 12 6 VASCO Use and Programming 13 6 1 VASCO display 13 6 2 Initial configuration 13 6 3 Initial view 15 6 4 Menu view 16 6 5 Installer parameters 16 6 6 Advanced parameters 21 7 Protections and alarms 24 8 Minimum stop frequency at 0 delivery f min Q 0 during constant pressure control 26 9 Auxiliary pumps during constant pressure control 26 ...

Страница 3: ...tion maintenance and repair must be carried out by trained skilled and qualified personnel Failure to observe and follow the instructions in this manual may result in dangerous and potentially lethal electric shock Pay attention to all standard safety and accident prevention regulations The device must be connected to main power supply via a switch to ensure the complete disconnection from the net...

Страница 4: ...z 2 Max ambient temperature at nominal current 40 C 104 F Max altitude at nominal current 1000 m Grade of protection IP55 NEMA 4 RS485 serial communication PWM configurable 2 5 4 6 8 10 kHz auxiliary cooling fan of the VASCO used in wall mounted applications has a protection rating of IP20 If you require the version with IP55 please contact the supplier VASCO is able to power the motor with a high...

Страница 5: ...pply LINE L1 L2 earth It is recommended to use cable lugs Output 3 ph motor earth U V W 1 ph motor earth U running V common It is recommended to use cable lugs 230 V AC auxiliary fans wall mounting kit FAN F1 F2 Recommended line and motor cables stripping ...

Страница 6: ...L1 L2 L3 It is recommended to use cable lugs Motor output MOTOR U V W GND It is recommended to use cable lugs 12 V dc auxiliary fan wall mounting kit 0VE VE WARNING respect the polarity Cable stripping recommended for line input and output to the motor ...

Страница 7: ...L1 L2 L3 GND It is recommended to use cable lugs Motor output MOTOR U V W GND It is recommended to use cable lugs 12 V dc auxiliary fans wall mounting kit VENT WARNING respect the polarity Cable stripping recommended for line input and output to the motor ...

Страница 8: ... alarm NC2 COM2 closed contact without alarm DOL1 pump relay NO3 COM3 closed contact with DOL1 running NC3 COM3 opened contact with DOL1 running DOL2 pump relay NO4 COM4 closed contact with DOL2 running NC4 COM4 opened contact with DOL2 running Relays are no voltage contacts Max voltage to the contacts is 250 V with max current of 5 A RS485 S S G It is recommended to respect the polarity linking m...

Страница 9: ...hielded cables connecting the screen at both ends Separate signal motor and power supply cables Note To enable the restoration of the display screen when there are electromagnetic interference VASCO periodically provides some fast refresh of the display 4 3 Installation with long motor cables With long motor cables it s recommended to decrease the commutation frequency from 10 kHz default to 2 5 k...

Страница 10: ...VASCO 209 214 406 409 VASCO 414 418 425 430 n 4 rods n 4 M5 nuts n 4 hooks n 1 cooling ring n 4 M5 screws n 4 clamps n 4 clips to add if necessary n 1 centre pin Use the cooling ring for best cooling of VASCO during operation Warning when using the cooling ring the cooling air of the motor is slightly warmer than without the VASCO if the resulting motor temperature exceeds the indicated maximum al...

Страница 11: ...acket in AISI 304 n 4 screws to fix VASCO to wall bracket n 2 12 V DC fans n 1 fans cover n 2 fans cover fixing screws n 2 wall fixing brackets n 4 M5 screws for VASCO fixing to the brackets n 1 holes reference sheet Make sure the manufacturer that the electric motor is suited for operation in the inverter Make sure to properly attach the grid of the auxiliary cooling fan Make sure to remove the a...

Страница 12: ... the pressure tank should have a capacity of 2 gallons Pre charge pressure of the pressure tank should be at least 80 than the set pressure of the system Example if the set pressure of the system is 4 bar the pre charge pressure of the tank should be 3 2 bar If the set pressure of the system is 60 psi the pre charge pressure of the tank should be 48 psi 5 1 2 Pressure sensor VASCO requires a press...

Страница 13: ...d otherwise it is impossible to set up and or modify any parameters they can be only displayed 6 1 VASCO display Screen is a back lit LCD displaying 2 rows of 16 digits each Alarms are indicated by an audible signal 6 2 Initial configuration When VASCO is switched on for the first time the initial setting menu is displayed for the initial setting of parameters to configure pump characteristics pre...

Страница 14: ...re goes below the maximum value for a period of at least 5 seconds Press START STOP to run a test at rated frequency Warning make sure to run the system without damaging pump and system If during the test the motor runs in reverse it is possible to change the wiring sequence via software without physically changing wires at the terminals 3 The pressure value to be kept constant OFF If ON is select...

Страница 15: ...he voltage and current absorbed by the motor P is the power in Watts supplied to the pump NORMAL status means no alarms If an alarm occurs a message blinks on the display and an audible signal is activated Pressing ENTER accesses VASCO lifetime PUMP lifetime alarm list PUMP lifetime is recorded while pump is powered To return to previous views press ENTER First row gives the VASCO status Inv ON XX...

Страница 16: ...l Fix speed 2 val External speed Constant temp Constant flow Const press Mode of control Constant pressure VASCO changes the speed of pump to keep the pressure constant independent of water demand Fixed frequency VASCO feeds the pump a set frequency so the speed of motor is kept constant Constant pressure control with two values the two values are selected by opening or closing the digital input 2...

Страница 17: ...he pressure goes over this value an alarm occurs and the pump is stopped Pump is automatically restarted if the pressure goes below the maximum value for a period of at least 5 seconds 0 Minimum pressure allowed in the system If the pressure goes lower than the set value an alarm occurs and the pump is stopped Pump is automatically restarted if the pressure goes higher than the minimum value for a...

Страница 18: ...ional to flow it is possible to vary the pressure set in a linear relation with respect to frequency If Q 0 Set pressure is granted while at the max output frequency will be granted the Set pressure p loss compens It can perform the following test to verify the correct value of p loss compensation 1 install a pressure gauge away from the pressure sensor 2 open completely the valve 3 check the pres...

Страница 19: ... Delay for which the pump will stop once the minimum frequency is reached f min Q 0 20 Ramp time from freq min Q 0 to motor freq min If during this time the p checked goes below the p_set delta start pres VASCO powers the motor again otherwise VASCO will stop the pump following the min freq of motor ramp 0 3 This value represents the pressure drop below the set pressure required to start the pump ...

Страница 20: ...crease Kp value and increase or reduce the Ki value again till a good dynamic control is reached OFF Function to activate ON the first auxiliary pump DOL 1 Direct On Line pump OFF Function to activate ON the second auxiliary pump DOL 2 Direct On Line pump OFF Function to allow alternating starting priority between the DOL pumps in order to allow equal use of them 1 delay time with which the pumps ...

Страница 21: ...ut 3 is opened N O By selecting N A normally open VASCO runs the motor if the digital input 4 is open motor will be stopped if the digital input 4 is closed By selecting N C normally closed VASCO runs the motor if the digital input 4 is closed motor will be stopped if the digital input 4 is opened 1 Digital input IN2 and IN3 delay Digital input IN1 and IN4 have 1 second fix delay Pressing ENT allo...

Страница 22: ...essively long ramp up times can create difficulties in VASCO setup and can also cause false overload alarms 2 Ramp down time to reach zero speed Longer times keep the system pressurized while protecting the system components Excessively long ramp down times can create difficulties in VASCO setup Excessively short ramp down times can cause false overload alarms 1 Time to reach the minimum frequency...

Страница 23: ...f torque characteristic should be done ensuring a smooth operation a reduction of energy consumption and a lower level of heat and acoustic noise Indipendent Function logic for analog input AN1 AN2 OFF If ON is selected after a lack of voltage VASCO returns to its normal status if VASCO was powering the pump before the voltage drop it resumes powering the pump automatically Warning review the advi...

Страница 24: ...erter over temperature Make sure than ambient temperature is less than 40 C 104 F Check if auxiliary cooling fan is working properly and if mounting space is adequate for proper cooling Reduce the PWM value Advance Parameter Menu NO LOAD No load Check if load is properly connected to the VASCO terminals NO WATER DRY RUN COSPHI Motor cosphi is lower than the set value of dry running cosphi Check if...

Страница 25: ...ton ADDRESS ERROR Same address as other VASCOs in the group The address of each VASCO needs to be different KEYBOARD FAULT A Button on the keyboard has been pressed for more than 150 seconds Make sure buttons are not depressed Call service assistance DIGITAL INPUT Digital input opened closed Check the input digital configuration under Installer Parameters menu ALARM SLAVE XX slave XX error detecte...

Страница 26: ...ble to compensate for minor water leakage and to limit the number of pump restarts It is important to pinpoint that a particular set pressure corresponds to a single value of min stop frequency So if the end user wants to change the set pressure a new value of min stop frequency should also be set 9 Auxiliary pumps during constant pressure control When the water needs vary considerably it is advis...

Страница 27: ...al water request changes the system curve from C1 to C2 since pump 1 P1 is running at maximum speed it is not possible to maintain the set pressure by increasing the speed so the system pressure will drop till reaching the new working point 2 If pressure at the point 2 is p_set delta start pres VASCO will run the DOL by relay DOL1 The DOL pump will run at its nominal speed while the pump 1 will dr...

Страница 28: ...e COMBO function in a system consisting of several interconnected VASCOs use a pressure sensor connected to each VASCO The value of the set pressure is communicated to the slaves via the serial port To prevent the shutdown of the system due to pressure sensor failure connecting a 2nd pressure sensor to the VASCO make sure that the two pressure sensors are identical Remember to perform the offset o...

Страница 29: ...n the VASCOs connected in parallel in order to allow equal use of each pump in the group in this way Master will reorganize the starting priority of the pumps by checking the life of each of them 1 Delay time with which the slaves start after the variable speed pump has reached the maximum frequency and the pressure value has fallen below set pressure delta start pressure 11 Press STOP red button ...

Страница 30: ...is interrupted by the differential protection contactor Check the leakage current to ground of EMC filter Following a rapid off on the power supply the differential contactor can interrupt the power After turning off the VASCO it is recommended to wait at least 1 minute before restarting When performing the Offset operation of the pressure device SENS PRESS OFF alarm occurs Check that the sensor c...

Страница 31: ...olume or reduce the pre charge pressure Measured pressure p_mis drops too much before VASCO starts the pump Decrease the delta start pressure Installer Parameters menu Check to see if the water tank and it s air pressure are correctly set It may be necessary to increase the tank volume or reduce the pre charge pressure Modify the value of ki kp parameters Installer Parameters menu At first it is s...

Страница 32: ...hase three phase submersible surface if submersible cable lenght m _____ if sommersible cable section mm 2 ____ P2 motor kW ____ rated motor Volt V ___ rated motor Amp A __ rated motor Hz ___ if single phase capacitor _____ UF if singlephase starting Amp I st _____ A pump performances Q ____ l min H ____ m tank volume _____ liters precharge pressure _____ bar number of DOL pumps ___ number of COMB...

Страница 33: ...i normative EN 55011 Classe A EN 61000 EN 60146 EN 50178 EN 60204 1 Ing Marco Nassuato Operation Manager DECLARATION OF CONFORMITY In according with Machine Directive 2006 42 EC EMC Directive 2004 108 CE VASCO 209 214 406 409 414 418 425 430 is an electronic device to be connected to other electrical equipment with which it is to form individual units It must therefore that the putting into servic...

Страница 34: ... Nastec si riserva il diritto di modificare le informazioni contenute in questo manuale senza alcun preavviso Nastec srl Via della Tecnica 8 36024 Mossano Vicenza Italy Tel 39 0444 886289 Fax 39 0444 776099 www nastec eu info nastec eu ...

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