Nastec VASCO User manual

VAriable Speed COntroller
Operating manual
VASCO
manVASCO_eng_05.docx

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Index
1. VASCO Introduction........................................................................................................................................................... 3
2. Safety Instructions............................................................................................................................................................. 3
3. Technical Characteristics ................................................................................................................................................... 4
3.1 Weight and dimensions .......................................................................................................................................................... 4
4. Electric wiring.................................................................................................................................................................... 5
4.1 Protections............................................................................................................................................................................... 9
4.2 Electromagnetic compliance.................................................................................................................................................... 9
4.3 Installation with long motor cables ......................................................................................................................................... 9
5. VASCO installation............................................................................................................................................................10
5. VASCO Installation for constant pressure 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
9.1 DOL pumps............................................................................................................................................................................ 27
9.2 COMBO function .................................................................................................................................................................... 28
10. Trouble-shooting chart ...................................................................................................................................................30
11. Technical Assistance .......................................................................................................................................................32

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1. VASCO Introduction
VASCO is a variable frequency drive designed to control and protect pumping systems by varying the output frequency to the
pump.
VASCO can be applied to both new and existing pumping systems, and provides:
energy and cost savings
simplified installation and an overall lower pumping system cost
longer life of the pumping system and relevant components
improved reliability
VASCO, when connected to any pump, manages the system operation to maintain a certain constant physical quantity
(pressure, differential pressure, flow, temperature, etc.) regardless of the conditions of use. The pump is operated only when
needed thus avoiding unnecessary energy consumption.
VASCO at the same time is able to:
protect the motor from overload and dry running
implement soft start and soft stop to increase the system life and reduce current peaks
provide an indication of current consumption, voltage, and power
maintain a record of run time and display any errors and/or failures reported by the system
control up to two additional pumps at a constant speed (Direct On Line)
connect to other VASCO units for combined operation
Through the use of inductive filters (optional) VASCO eliminates dangerous surges that are induced in long cables, making
VASCO suitable for control of submersible pumps.
2. Safety Instructions
The manufacturer strongly suggests carefully reading this operation manual before using and installing its products
Any operation (installation, 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 network before any operation on the VASCO
itself (including visual inspection) and/or on the connected load.
Disconnect VASCO from the main power supply before commencing any work.
Do not remove, for any reason, the cover and the cable plate without having first
disconnected the device from the main power supply and having waited at least 5
minutes.
VASCO and pumping system must be grounded properly before operation.
For the entire period VASCO 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 device. Otherwise, there may be a failure to connect the cover to
ground, creating the risk of electric shock or even death.
Avoid any shock or significant impact during transport.
Check the VASCO immediately upon delivery and check for damage and/or missing parts. If either occurs, immediately notify
the supplier.
Damages due to transport, incorrect installation, or improper use of the device will null and void the warranty.
Tampering or disassembly of any component will automatically void the warranty.
The manufacturer cannot be held responsible for any damages to people and/or property due to improper use of its
products.

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3. Technical Characteristics
Model
Vin +/- 15%
Max
Vout
Max line
current
Max
motor
current
Typical P2 motor
[V] AC
[V]
[A]
[A]
[KW]
[HP]
VASCO 209
1 x 230 VAC
1 x Vin
15
9
1.1
1.5
3 x Vin
7
1.5
2
VASCO 214
1 x 230 VAC
1 x Vin
20
9
1.1
1.5
3 x Vin
11
3
4
VASCO 406
3 x 380-460 VAC
3 x Vin
10
6
2,2
3
VASCO 409
3 x 380-460 VAC
3 x Vin
13,5
9
4
5,5
VASCO 414
3 x 380-460 VAC
3 x Vin
16
14
5,5
7,5
VASCO 418
3 x 380-460 VAC
3 x Vin
21
18
7,5
10
VASCO 425
3 x 380-460 VAC
3 x Vin
31
25
11
15
VASCO 430
3 x 380-460 VAC
3 x Vin
35
30
15
20
Power frequency: 50 - 60 Hz (+/- 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 higher current for a short period of time according to the linear relation:
101% of the nominal current for 10min., 110% nominal current for 1 min.
3.1 Weight and dimensions
Model
Weight *
[Kg]
VASCO 209
4
VASCO 214
4,3
VASCO 406
4,4
VASCO 409
4,4
VASCO 414
7
VASCO 418
7
VASCO 425
7
VASCO 430
7,2
* Weight without auxiliary cooling fans and without packing.

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4. Electric wiring
Power board VASCO 209,214
Power supply:
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

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Power board VASCO 406,409
Power supply:
LINE: GND , 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.

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Power board VASCO 414,418,425,430
Power supply:
LINE: 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.

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Control board
Analog inputs (10 or 15 Vdc):
1. AN1: 4-20 mA: pressure sensor
2. AN2: 4-20 mA: auxiliary
pressure sensor
3. AN3: 4-20 mA / 0 - 10 Vdc
(settable by jumper C.C.): flow
sensor or temperature sensor
4. AN4: 4-20 mA / 0 - 10 Vdc
(settable by C.C.): trimmer for
frequency regulation
Digital outputs:
motor run signal:
NO1, COM1: closed contact with motor
running.
NC1,COM1: closed contact with motor
stopped.
alarm signal
NO2,COM2: opened contact without 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
more VASCOs in
series.
Digital inputs:
IN1
IN2
IN3
IN4
0V
We recommend using only no
voltage contacts.
Opening or closing the digital
contacts (depending on software
configuration set (see inst.
parameters) you can start or stop
the motor.

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4.1 Protections
The protections required upstream each VASCOs depends on the type of installation, and local regulations. We recommend
to use overload protection with the characteristic curve of type C and type B circuit breaker, sensitive to both AC and DC
current.
4.2 Electromagnetic compliance
To ensure electromagnetic compatibility (EMC) of the system, it is necessary to apply the following measures:
Always connect the device to ground
Use shielded signal cables by placing the screen at one end.
Use motor cable as short as possible (<1 m / <3 ft). For longer lengths, it is recommended to use shielded 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 kHz
(advanced parameters). This reduces the probability of
voltage spikes in the motor windings which may damage the
insulation.
For motor cable lengths up to 50 meters it’s recommended
to place between VASCO and motor a dv / dt reactance,
available on request.
For motor cable lengths greater than 50 meters it’s
recommended to place between VASCO and motor a
sinusoidal filter, available on request.

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5. VASCO installation
VASCO can be installed directly on the fan cover of the motor or mounted on the wall.
Motor mounting kit
In this application VASCO is cooled by the motor fan. Motor kit (available upon request) allows a solid coupling of the two
units and it is composed of:
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 allowable value, remove the
cooling ring, leaving the VASCO to be cooled by itself.