Nastec Vasco V209 User manual

VAriable Speed COntroller
Operating manual
manVASCO_eng_31

2
Index
1. Introduction ...................................................................................................................................................................... 3
2. Safety Instructions............................................................................................................................................................. 3
3. Technical Characteristics ................................................................................................................................................... 4
3.1 Weight and dimensions .......................................................................................................................................................... 5
4. Electric wiring.................................................................................................................................................................... 6
4.1 Protections............................................................................................................................................................................. 13
4.2 Electromagnetic compliance.................................................................................................................................................. 13
4.3 Installation with long motor cables ....................................................................................................................................... 13
5. Installation .......................................................................................................................................................................14
5.1 Installation for constant pressure control ............................................................................................................................. 17
5.1.1 Pressure tank .............................................................................................................................................................. 17
5.1.2 Pressure sensor........................................................................................................................................................... 17
5.2 Installation for differential constant pressure applications................................................................................................... 18
5.2.1 Sensors wiring ............................................................................................................................................................. 18
5.2.2 Programming............................................................................................................................................................... 18
6. Use and Programming ......................................................................................................................................................19
6.1 Display................................................................................................................................................................................... 19
6.2 Initial configuration............................................................................................................................................................... 19
6.2.1 FOC motor control ...................................................................................................................................................... 21
6.3 Initial view ............................................................................................................................................................................. 23
6.4 Menu view............................................................................................................................................................................. 24
6.5 Control parameters ............................................................................................................................................................... 24
6.6 Motor parameters.................................................................................................................................................................. 28
6.7 IN/OUT parameters................................................................................................................................................................ 31
6.8 Connectivity parameters........................................................................................................................................................ 32
7. Protections and alarms.....................................................................................................................................................32
8. Auxiliary pumps during constant pressure control ...........................................................................................................34
8.1 DOL pumps............................................................................................................................................................................ 35
8.2 COMBO function .................................................................................................................................................................... 36
9. Trouble-shooting chart .....................................................................................................................................................39
10. Technical Assistance .......................................................................................................................................................40

3
1. Introduction
VASCO –VAriable Speed COntroller is a variable frequency drive designed to control and protect pumping systems by varying
the output frequency to the pump. It 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 –VAriable Speed COntroller, 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.
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 units for combined operation
The use of inductive filters (optional) eliminates dangerous surges that are induced in long cables, making the inverter
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 unit itself
(including visual inspection) and/or on the connected load.
Disconnect the device 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.
The inverter and the pumping system must be grounded properly before
operation. For the entire period the unit is powered, high voltage is present on
the output terminals of the inverter whether or not the pump is running.
Tightening all 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 product 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.
Devices marked with this symbol cannot be disposed of in household waste but
must be disposed of at appropriate waste drop-off centres. It is recommended
to contact the Waste Electrical and Electronic Equipment drop-off centres
(WEEE) in the area. If not disposed of properly, the product can have potential
harmful effects on the environment and on human health due to certain
substances present within. Illegal or incorrect disposal of the product is subject
to serious administrative and/or criminal penalties.

4
3. Technical Characteristics
Model
Vin +/- 15% [V]
Max V out
[V]
Max I in
[A]
Max I out
[A]
P2 motor
power*
[kW]
Size
V209
1 x 230
1 x Vin
15
9
1,1
1
3 x Vin
7
1,5
1
V214
1 x 230
1 x Vin
20
9
1,1
1
3 x Vin
11
3
1
V218
1 x 230
3 x Vin
38
18
4
2
V225
1 x 230
3 x Vin
53
25
5,5
2
V230
1 x 230
3 x Vin
63
30
7,5
3
V238
1 x 230
3 x Vin
80
38
9,3
3
V306
3 x 230
3 x Vin
10
6
1,1
1
V309
3 x 230
3 x Vin
13,5
9
2,2
1
V314
3 x 230
3 x Vin
13,5
14
3
2
V318
3 x 230
3 x Vin
17,5
18
4
2
V325
3 x 230
3 x Vin
24
25
5,5
2
V330
3 x 230
3 x Vin
29
30
7,5
2
V338
3 x 230
3 x Vin
42
38
9,2
3
V348
3 x 230
3 x Vin
52
48
11
3
V365
3 x 230
3 x Vin
68
65
15
3
V375
3 x 230
3 x Vin
78
75
18,5
3
V385
3 x 230
3 x Vin
88
85
22
3
V406
3 x 380 - 460
3 x Vin
10
6
2,2
1
V409
3 x 380 - 460
3 x Vin
13,5
9
4
1
V414
3 x 380 - 460
3 x Vin
13,5
14
5,5
2
V418
3 x 380 - 460
3 x Vin
17,5
18
7,5
2
V425
3 x 380 - 460
3 x Vin
24
25
11
2
V430
3 x 380 - 460
3 x Vin
29
30
15
2
V438
3 x 380 - 460
3 x Vin
42
38
18,5
3
V448
3 x 380 - 460
3 x Vin
52
48
22
3
V465
3 x 380 - 460
3 x Vin
68
65
30
3
V475
3 x 380 - 460
3 x Vin
78
75
37
3
V485
3 x 380 - 460
3 x Vin
88
85
45
3
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 (SIZE 1,2) , IP54 (SIZE 3) *
RS485 serial communication
* auxiliary cooling fan, used in wall mounted applications, has a protection rating of IP54.
The inverter 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.

5
3.1 Weight and dimensions
Model
Weight *
Size
[Kg]
V209
4
1
V214
4,3
1
V218
7,2
2
V225
7,2
2
V230
33
3
V238
33
3
V306
4,4
1
V309
4,4
1
V314
7
2
V318
7
2
V325
7
2
V330
7,2
2
V338
33
3
V348
33
3
V365
34
3
V375
34
3
V385
34
3
V406
4,4
1
V409
4,4
1
V414
7
2
V418
7
2
V425
7
2
V430
7,2
2
V438
33
3
V448
33
3
V465
34
3
V475
34
3
V485
34
3
* Weight without packing.
SIZE 1
SIZE 2
SIZE 3

6
4. Electric wiring
Power board V209,214
Power supply:
LINE: L1, L2,GND
It is recommended to use
cable lugs
Output:
3 ph motor:
GND,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

7
Power board V218, 225
Power supply:
LINE: L1, L2, 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.

8
Power board V230, 238
Power supply:
LINE: L1, L2, P.E.
It is recommended to use
cable lugs.
Motor output:
MOTOR: U, V, W, P.E.
It is recommended to use
cable lugs.
Cable stripping recommended for line input and output to the motor.
LINE
L1
P.E.
W
P.E
L2
V
U
MOTOR

9
Power board V306,309,406,409
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.

10
Power board V314,318,325,330,414,418,425,430
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.

11
Power board V338,348,365,375,385,438,448,465,475,485
Power supply:
LINE: L1, L2, L3, P.E.
It is recommended to use
cable lugs.
Motor output:
MOTOR: U, V, W, P.E.
It is recommended to use
cable lugs.
Cable stripping recommended for line input and output to the motor.

12
Control board
Analog inputs (10 or 15 Vdc):
1. AN1: 4-20 mA: sensor 1
2. AN2: 4-20 mA: sensor 2
3. AN3: 4-20 mA / 0 - 10 Vdc (settable
by jumper C.C.): external set
4. AN4: 4-20 mA / 0 - 10 Vdc (settable
by C.C.): trimmer for frequency
regulation / external set 2
Digital outputs:
motor run signal:
NO1, COM1: closed contact with motor running.
NC1,COM1: closed contact with motor stopped.
alarm signal
NO2,COM2: closed contact without alarm.
NC2,COM2: closed contact with alarm or no power
supply.
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 for COMBO:
S1+
S1-
G
It is recommended to
respect the polarity
linking more units in
series.
Digital inputs:
IN1 : motor start & stop
IN2: value set 1 & 2 switching
IN3: sensor 1 & 2 switching
IN4 : motor start & stop + alarms
reset
0V
We recommend using only no voltage
contacts.
Opening or closing the digital contacts
(depending on software configuration
set (see IN/OUT. parameters) you can
start or stop the motor.
RS485 for MODBUS:
S2+
S2-
G
It is recommended to
respect the polarity.

13
4.1 Protections
The protections required upstream each inverter 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, the device 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
(Motor parameters). This reduces the probability of voltage
spikes in the motor windings which may damage the
insulation.
To prevent dangerous overheating of dv / dt and sinusoidal
filters it is recommended to set the correct PWM value in
relation to the cable length.
For motor cable lengths up to 50 meters it’s recommended
to place between inverter and motor a dv / dt reactance,
available on request.
For motor cable lengths greater than 50 meters it’s
recommended to place between inverter and motor a
sinusoidal filter, available on request.

14
5. Installation
The device can be installed directly on the fan cover of the motor or mounted on the wall.
Motor mounting kit
In this application the unit is cooled by the motor fan. Motor kit (available upon request) allows a solid coupling of the two
units and it is composed of:
SIZE 1
SIZE 2
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 the unit during
operation. Warning: when using the cooling ring, the
cooling air of the motor is slightly warmer than without
the inverter; if the resulting motor temperature exceeds
the indicated maximum allowable value, remove the
cooling ring, leaving the inverter to be cooled by itself.

15
SIZE 3
n.° 1 motor feet adaptor for MEC160,180,200,225
n.° 4 M8 bolts,
n.° 4 M10 bolts, nuts and washer

16
Wall mounting kit
In this application the unit is cooled independently by its auxiliary cooling fan integrated in the radiator.
Wall-mounted kit is composed of:
SIZE 1
SIZE 2
n.° 1 auxiliary fan 230V AC (V209,214) or 12
VDC (V306,309,406,409)
n.° 4 screws to fix cooling fan
n.° 1 protection grill
n.° 1 metal bracket in AISI 304
n.° 4 screws to fix 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 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 auxiliary cooling fan if the inverter is coupled to a motor. Failure to do so
creates a high risk of overheating motor and inverter.

17
5.1 Installation for constant pressure control
VASCO - VAriable Speed Controller 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:
5.1.1 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 (check the appendix for more
information). Selecting the proper volume and pre-charge pressure of the tank is very important; smaller tank volumes will
not compensate adequately for minimum water usage or leakage, while larger volumes make it more difficult to control the
pressure evenly.
Recommended tank volume is equal to the 10% of the maximum water flow of the system (expressed in volume unit/min)
Example: if the max water flow is 50 liters/min, the pressure tank should have a capacity of 5 liters
If the max water flow is 20 gpm, 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
The device requires a pressure sensor with a linear output signal within the range 4 –20 mA. The pressure transducer can be
powered by any range of DC Voltage which includes the value 15 V dc.
The unit accepts the signal of a second pressure sensor in order to:
realize constant differential pressure (AN1 –AN2).
substitute first pressure sensor when it fails
switch pressure sensor by closing digital input IN2
SENSOR 1
AN1: 4-20 mA (-) signal
+15V: 15 Vdc (+) power supply
SENSOR 2
AN2: 4-20 mA (-) signal
+15V: 15 Vdc (+) power supply
VASCO
1
2
3
5
4
1: pump
2: check valve
3: pressure tank
4: valve
5: valve
6: pressure sensor
6

18
5.2 Installation for differential constant pressure applications
The inverter can manage the pump speed in order to keep constant the pressure difference between the dischage and
suction side of the pump in circulation systems. To do this, it is usually installed a differential pressure sensor. Alternatively, it
is possible to use two identical pressure sensors: one in suction side and one in discharge side of the pump. The difference of
values is performed by the inverter itself.
.
N.B. If during the operation it is expected that the pressure in the suction side falls below the atmospheric pressure, it is
necessary to use absolute pressure sensors and not relative ones.
5.2.1 Sensors wiring
The unit can be connected to linear pressure sensors with 4 - 20 mA output. The supply voltage range of the sensors must
include the 15 VDC with which the unit feeds the analog inputs.
If you are using a differential pressure sensor it is necessary to connect the sensor to the analog input 1:
DIFFERENTIAL SENSOR
AN1: 4-20 mA (-) signal
+15V: 15 Vdc (+) supply
In case two pressure sensors are used, the pressure sensor in the discharge side must be connected to the analog input 1
while the pressure sensor in the suction side must be connected to the analog input 2:
SENSOR 1 (discharge)
AN1: 4-20 mA (-) signal
+15V: 15 Vdc (+) supply
SENSOR 2 (suction)
AN2: 4-20 mA (-) signal
+15V: 15 Vdc (+) supply
In the IN/OUT parameters menu it is therefore necessary to set the logic AN1, AN2 as "difference".
5.2.2 Programming
In circulation systems pump starting and stopping is usually controlled by an external contact that can be connected to the
digital input 1 (IN1, 0V) and configured as N.O or N.C in the IN/OUT parameters menu. It is then recommended to set the
following parameters:
Control parameter
Recommended value
Freq. min control
Same as minimum motor frequency
Delta control
0 bar
Delta start
0 bar
Stop delay
99 sec
IN/OUT parameter
Recommended value
Function AN1,AN2
Difference 1-2
Constant differential pressure
The "set value" corresponds to the differential pressure to be kept constant.
Set the "set value" equal to the pressure difference measured between the discharge and the suction side of the pump at
maximum load (all utilities opened) and at maximum frequency (50 Hz).
Proportional differential pressure
In case it is needed to use a control logic based on proportional differential pressure (in order to achieve a further energy
saving), it is necessary to set the "set value" equal to the pressure difference between the discharge and suction side of the
pump at minimum frequency (20 Hz ) and "compensation" in order to reach the maximum set value at maximum frequency
(50 Hz) and maximum load (all utilities opened).

19
6. Use and Programming
The device is extremely simple to use, but allows a wide variety of parameters to be set for ideal system calibration.
Setting Parameters are organized in 2 levels:
1: Installer level (MENU’ CONTROL PARAMETERS, MENU’ IN/OUT PARAMETERS, MENU’ CONNECTIVITY PARAM.)
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 (MENU’ MOTOR PARAMETERS)
A second and different password is required; improper setting of these advanced parameters could compromise the
integrity and the life of inverter and pump;
Default password 002
It is possible to set up a different password.
Installer and Advanced levels can be entered only with the correct password; otherwise, it is impossible to set up
and/or modify any parameters (they can be only displayed).
6.1 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 the unit is switched on for the first time, the initial setting menu is displayed for the initial setting of parameters to
configure pump characteristics, pressure sensor range, and system characteristics.
If the initial setting procedure is not completed properly, it is impossible to run the pump. Initial setting procedure can be
repeated if necessary.
The initial setting procedure can be repeated (by using the 2rd level password) to reconfigure the device or if the unit is
installed in a different system.
A brief description of parameters and their allowable ranges are listed below:
STOP motor
Menu exit
Alarms reset
START motor
ENTER
Scroll up
Scroll down

20
Parameter
Default
Description
XXXX
End user communication language
bar
Unit
three-phase
Type of motor connected:
single phase (V209, 214)
asynchronous three-phase
synchronous PM (permanent magnets)
XX
Rated current of the motor per it’s nameplate indication increased
by 10%. 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: Constant value [bar]
16
Sensor full scale.
If the transducer is not connected or connected improperly, the
signal SENSOR OFF is activated when pressing ENTER.
10
Maximum pressure allowed in the system. If the 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.
3
The pressure value to be kept constant.
If the device is "FOC-ready", motor calibration must be carried out
before commissioning.
Carefully read the pertinent chapter.
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.
OFF
Activation or deactivation of COMBO operation.
OFF
If ON is selected, after a lack of voltage, the inverter returns to its
normal status; if the unit was powering the pump before the voltage
drop, it resumes powering the pump automatically.
Warning, review the advice in chapter 1
Language
XXXXXX
Unit
XXXXX
Motor type
XXXXXX
Rated motor Amp.
I = XX.X [A]
Rated motor freq
f = XXX [Hz]
F. scale sensor
p = XX.X [bar]
Sensor test
Press ENT
Max alarm value
p = XX.X [bar]
Set value
p = XX.X [bar]
MOTOR TUNING
press ENT
Motor test
START/STOP
Rotation sense
---> / <---
COMBO
ON/OFF
Autorestart
ON/OFF