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Solon VASCO Solar 212, Инструкция по установке и эксплуатации

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10. Auxiliary pumps during constant pressure control 

 
When the water needs vary considerably, it is advisable to share the water request between several pumps ensuring better 
efficiency and reliability. 
A first method consists of a single pump driven directly by VASCO Solar and another 1 or 2 pumps directly connected to the 
mains DOL (Direct On Line); DOL pumps are controlled by VASCO Solar and connected to the mains through 1 or 2 contactors. 
 
 

 

 
 
 
 
 
In this method, DOL pumps are not started and stopped smoothly with the corresponding increase in energy consumption 
and mechanical wear (startup current). Also note that DOL pumps are not protected by VASCO Solar.

 

A second method of sharing water demand (named COMBO mode) consists of using additional pumps in parallel (up to 8), 
with each one driven by a VASCO Solar. 
 
 
 
 
 
 

 

In this method, energy consumption and reliability of the pumping system is maximized: VASCO Solar monitors and protects 
each pump.  It is possible to assemble a booster system composed of pumps connected in COMBO mode and another 1 or 2 
DOL pumps to cover additional water demand (managed only by master). 

 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

 

 

Содержание VASCO Solar 212

Страница 1: ...VASCO Solar Installation and Operating Manual ...

Страница 2: ...lar Installation for constant pressure control 11 7 1 1 Pressure tank 11 7 1 2 Pressure sensor 12 8 VASCO Solar Use and Programming 12 8 1 VASCO Solar display 12 8 2 Initial configuration 13 8 3 Initial view 14 8 4 Menu view 15 8 5 Installer parameters 15 8 6 Advanced parameters 21 9 Protections and alarms 23 10 Auxiliary pumps during constant pressure control 25 10 1 DOL pumps 26 10 2 COMBO funct...

Страница 3: ...from the panels so the amount of pumped water Pump speed is constantly adapted to available solar irradiation thus maximizing the amount of pumped water and making possible operation even in low irradiation conditions VASCO Solar also offers complete pump protection against over voltage over current and dry running VASCO Solar can be used with any type of traditional AC pump thus offering maximum ...

Страница 4: ...rst disconnected the device from the main power supply and having waited at least 5 minutes VASCO Solar and pumping system must be grounded properly before operation For the entire period VASCO Solar is powered high voltage is present on the output terminals of the inverter whether or not the pump is running Tightening all 4 screws on the cover with washers is recommended before powering the devic...

Страница 5: ...30 3 x 400 15 x Max ambient temperature at nominal current 50 C 122 F x Max altitude at nominal current 1000 m x Grade of protection IP65 NEMA 4 x RS485 serial communication x PWM configurable 2 5 4 6 8 10 kHz avoid direct exposition to solar rays VASCO Solar Solar is able to power the motor with a higher current for a short period of time according to the linear relation 101 of the nominal curren...

Страница 6: ...ended to use cable lugs It is not necessary to respect polarity 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 7: ...closed contact with DOL1 running NC3 COM3 opened contact with DOL1 running x 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 x S x S x G It is recommended to respect the polarity linking more VASCO Solars in series Digital inputs x IN1 motor start st...

Страница 8: ... To enable the restoration of the display screen when there are electromagnetic interference VASCO Solar 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 kHz advanced parameters This reduces the probability of voltage spikes in the motor windings wh...

Страница 9: ...5 VASCO Solar installation x n 2 12 V DC fans x n 1 fans cover x n 2 fans cover fixing screws x n 2 wall fixing brackets x n 4 M5 screws for VASCO Solar fixing to the brackets x n 1 holes reference sheet ...

Страница 10: ...mum performance the PV system consisting of 1 or more strings of solar panels connected in series must provide x Electrical motor power P1 The photovoltaic power Wp must be at least equal to the electric motor power P1 Typically taking into account the efficiency loss due to panels temperature it is recommended to increase Wp of 15 respect to P1 x Rated motor voltage at maximum power The rated vol...

Страница 11: ...ired pressure VASCO Solar controls the pump speed to maintain constant pressure at a set point independent of the water demand in the system A basic schematic is shown below 7 1 1 Pressure tank Installation of a pressure tank in the hydraulic system is recommended to compensate leakage of water in the system or during minimum water demand and to avoid continuous start stop cycling of the pump chec...

Страница 12: ... be set for ideal system calibration Setting Parameters are organized in 2 levels 1 Installer level A password is required for this level these parameters are adjustable by trained professionals Default password 001 From the menu a different password can be set up 2 Advanced level A second and different password is required improper setting of these advanced parameters could compromise the integri...

Страница 13: ... The voltage drop caused by the inverter leads to higher input current than nominal Make sure motor is capable of accepting increased current 50 Rated frequency of the motor per its nameplate Control mode MPPT 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 t...

Страница 14: ... display and an audible signal is activated Pressing ENTER accesses VASCO Solar lifetime PUMP lifetime consumption statistic alarm list To return to previous views press ENTER First row gives the VASCO Solar status x Inv ON XXX X Hz VASCO Solar is powered and is powering the motor showing its frequency x Inv ON Mot OFF VASCO Solar is powered but motor is not running x Inv OFF Mot OFF VASCO Solar i...

Страница 15: ... the pumping system parameter default desciption MPPT Constant value Fix speed Const value 2 set Fix speed 2 val External speed MPPT Mode of control x MPPT pump speed is adjusted in order to obtain maximum power available from PV panels x Constant value VASCO Solar changes the speed of pump to keep the set value constant independent of water demand x Fix speed VASCO Solar feeds the pump a set freq...

Страница 16: ...started if the readen value goes higher than the minimum value for a period of at least 5 seconds 9 9 9 9 9 9 OFF Enabling of set value changing by analog input AN3 9 9 3 The set value to be kept constant 9 0 Value compensation at the maximum frequency for each pump Acting on the green button you can reverse the sign 9 3 The set value to be kept constant 9 0 Value compensation at the maximum frequ...

Страница 17: ...alues from the two gauges When using a group of pumps the pressure compensation to be applied to each pump is equal to the total pressure compensation when all the pumps are running at full speed divided by the number of pumps in the group 50 Set the frequency value to feed the pump 9 50 Set the frequency value to feed the pump 9 50 Minimum frequency below which the pump tries to stop 9 9 9 5 Dela...

Страница 18: ... a forced shutdown of the pump 9 9 Kp and Ki parameters allow the dynamic control of system by VASCO Solar set values Ki 50 Kp 005 are usually enough to get a valid dynamic control 9 9 9 OFF Function to activate ON the first auxiliary pump DOL 1 Direct On Line pump 9 9 OFF Function to activate ON the second auxiliary pump DOL 2 Direct On Line pump 9 9 OFF Function to allow alternating starting pri...

Страница 19: ... 65 If the pump goes into dry running the cosphi reaches its lowest level To set this value contact the pump manufacturer or test by closing the suction and checking the value on the VASCO Solar display a value can be set by assuming a dry cosphi equivalent to 60 of the rated cosphi specified by the manufacturer 9 9 9 9 9 9 10 Restart delay after a dry running alarm At each tentative max 5 restart...

Страница 20: ...al input 3 is closed motor will be stopped if the digital input 3 is opened 9 9 9 9 9 9 N O By selecting N A normally open VASCO Solar 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 Solar runs the motor if the digital input 4 is closed motor will be stopped if the digital input 4 is opened 9 9 9 9 9 9 3 Di...

Страница 21: ...wer than 30 Hz in order to protect the integrity of the thrust bearings 4 Ramp up time to reach the speed required to achieve the set pressure or frequency value Longer times delay the system reaching the preset value but better protect system components Excessively long ramp up times can create difficulties in VASCO Solar setup and can also cause false overload alarms 4 Ramp down time to reach ze...

Страница 22: ...cted after a lack of voltage VASCO Solar returns to its normal status if VASCO Solar was powering the pump before the voltage drop it resumes powering the pump automatically Warning review the advice in chapter 1 0 Pump periodic autorun after XX hours of inactivity Value 0 makes function disabled Warning review the advice in chapter 1 Indipendent Function logic for analog input AN1 AN2 20 Zero cor...

Страница 23: ...eck other possible causes of over current UNDER VOLTAGE Supply voltage too low Check possible causes of undervoltage OVER VOLTAGE Supply voltage too high Check possible causes of overvoltage OVER TEMP INV Inverter over temperature x Make sure than ambient temperature is less than 40 C 104 F x Check if auxiliary cooling fan is working properly and if mounting space is adequate for proper cooling x ...

Страница 24: ...y to reset the alarm by pushing STOP button ADDRESS ERROR Same address as other VASCO Solars in the group x The address of each VASCO Solar needs to be different KEYBOARD FAULT A Button on the keyboard has been pressed for more than 150 seconds x Make sure buttons are not depressed x Call service assistance ACTIVE DIG IN X Digital input X opened closed x Check the input digital configuration Insta...

Страница 25: ... method DOL pumps are not started and stopped smoothly with the corresponding increase in energy consumption and mechanical wear startup current Also note that DOL pumps are not protected by VASCO Solar A second method of sharing water demand named COMBO mode consists of using additional pumps in parallel up to 8 with each one driven by a VASCO Solar In this method energy consumption and reliabili...

Страница 26: ...s nominal speed while the pump 1 will drop it speed equal to the P1 pattern to maintain set pressure If water demands decreases returning to the system curve C1 pump 1 will reduce the pump speed to maintain constant pressure in the system When pump 1 reaches a frequency equivalent to the minimum frequency while still maintaining set pressure the DOL pump will be switched off and pump 1 will increa...

Страница 27: ...e VASCO Solar make sure that the two pressure sensors are identical Remember to perform the offset operation of the sensors in each VASCO Solar Installer Parameters menu As a further help you can connect another two DOL pumps to the VASCO Solar Master to cover additional water demand they will be operated only when all the COMBO pumps are already in operation RS485 serial connection VASCO Solar s ...

Страница 28: ...the life of each of them 0 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 value delta control 11 Press STOP red button 12 Press STOP again Slave setup Follow Master setup until point 11 In case of failure of master in a Combo system will be replaced by slave As a consequence all parameters must be s...

Страница 29: ...te before restarting When performing sensor test operation SENSOR OFF alarm occurs x Check that the sensor cable is properly connected to the sensor device and to the VASCO Solar x Make sure that the sensor and its cable are not damaged x Check that the operating range of sensor is of 4 20 mA type and the value of 15 V is within the voltage feed range of the sensor Frequency and pressure oscillati...

Страница 30: ...ngle phase 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 o...

Страница 31: ... Via dell Industria e dell Artigianato 2 35010 Carmignano di Brenta PD Italy Phone 39 049 9458200 Fax 39 049 9458299 E Mail components it solon com For more information on SOLON products please visit www solon com ...

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