Kolmeks NC 209 User manual

VAriable Speed COntroller
Operating manual
NC
manNC_eng_30

2
Index
1. NC Introduction................................................................................................................................................................. 3
2. Safety Instructions............................................................................................................................................................. 3
3. Technical Characteristics ................................................................................................................................................... 4
3.1 Weight and dimensions .......................................................................................................................................................... 5
4. Electric wiring.................................................................................................................................................................... 6
4.1 Protections............................................................................................................................................................................. 12
4.2 Electromagnetic compliance.................................................................................................................................................. 12
4.3 Installation with long motor cables ....................................................................................................................................... 12
5. NC installation ..................................................................................................................................................................13
5.1 NC Installation for constant pressure control........................................................................................................................ 16
5.1.1 Pressure tank .............................................................................................................................................................. 16
5.1.2 Pressure sensor........................................................................................................................................................... 16
5.2 NC installation for differential constant pressure applications ............................................................................................. 17
5.2.1 Sensors wiring ............................................................................................................................................................. 17
5.2.2 Programming............................................................................................................................................................... 17
6. NC Use and Programming.................................................................................................................................................18
6.1 NC display.............................................................................................................................................................................. 18
6.2 Initial configuration............................................................................................................................................................... 18
6.2.1 FOC motor control ...................................................................................................................................................... 20
6.3 Initial view ............................................................................................................................................................................. 22
6.4 Menu view............................................................................................................................................................................. 23
6.5 Control parameters ............................................................................................................................................................... 23
6.6 Motor parameters.................................................................................................................................................................. 27
6.7 IN/OUT parameters................................................................................................................................................................ 30
6.8 Connectivity parameters........................................................................................................................................................ 31
7. Protections and alarms.....................................................................................................................................................31
8. Auxiliary pumps during constant pressure control ...........................................................................................................33
8.1 DOL pumps............................................................................................................................................................................ 34
8.2 COMBO function .................................................................................................................................................................... 35
9. Trouble-shooting chart .....................................................................................................................................................38
10. Technical Assistance .......................................................................................................................................................39

3
1. NC Introduction
NC is a variable frequency drive designed to control and protect pumping systems by varying the output frequency to the
pump.
NC 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
NC, 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.
NC 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 NC units for combined operation
Through the use of inductive filters (optional) NC eliminates dangerous surges that are induced in long cables, making NC
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 NC itself
(including visual inspection) and/or on the connected load.
Disconnect NC 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.
NC and pumping system must be grounded properly before operation.
For the entire period NC 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 NC 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.

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3. Technical Characteristics
Model
Vin +/- 15% [V]
Max V out
[V]
Max I in
[A]
Max I out
[A]
P2 motor
power*
[kW]
Size
NC 209
1 x 230
1 x Vin
15
9
1,1
1
3 x Vin
7
1,5
1
NC 214
1 x 230
1 x Vin
20
9
1,1
1
3 x Vin
11
3
1
NC 218
1 x 230
3 x Vin
38
18
4
2
NC 225
1 x 230
3 x Vin
53
25
5,5
2
NC 306
3 x 230
3 x Vin
10
6
1,1
1
NC 309
3 x 230
3 x Vin
13,5
9
2,2
1
NC 314
3 x 230
3 x Vin
13,5
14
3
2
NC 318
3 x 230
3 x Vin
17,5
18
4
2
NC 325
3 x 230
3 x Vin
24
25
5,5
2
NC 330
3 x 230
3 x Vin
29
30
7,5
2
NC 338
3 x 230
3 x Vin
42
38
9,2
3
NC 348
3 x 230
3 x Vin
52
48
11
3
NC 365
3 x 230
3 x Vin
68
65
15
3
NC 375
3 x 230
3 x Vin
78
75
18,5
3
NC 385
3 x 230
3 x Vin
88
85
22
3
NC 406
3 x 380 - 460
3 x Vin
10
6
2,2
1
NC 409
3 x 380 - 460
3 x Vin
13,5
9
4
1
NC 414
3 x 380 - 460
3 x Vin
13,5
14
5,5
2
NC 418
3 x 380 - 460
3 x Vin
17,5
18
7,5
2
NC 425
3 x 380 - 460
3 x Vin
24
25
11
2
NC 430
3 x 380 - 460
3 x Vin
29
30
15
2
NC 438
3 x 380 - 460
3 x Vin
42
38
18,5
3
NC 448
3 x 380 - 460
3 x Vin
52
48
22
3
NC 465
3 x 380 - 460
3 x Vin
68
65
30
3
NC 475
3 x 380 - 460
3 x Vin
78
75
37
3
NC 485
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 of the NC, used in wall mounted applications, has a protection rating of IP54.
NC 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.

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3.1 Weight and dimensions
Model
Weight *
Size
[Kg]
NC 209
4
1
NC 214
4,3
1
NC 218
7,2
2
NC 225
7,2
2
NC 306
4,4
1
NC 309
4,4
1
NC 314
7
2
NC 318
7
2
NC 325
7
2
NC 330
7,2
2
NC 338
33
3
NC 348
33
3
NC 465
34
3
NC 375
34
3
NC 385
34
3
NC 406
4,4
1
NC 409
4,4
1
NC 414
7
2
NC 418
7
2
NC 425
7
2
NC 430
7,2
2
NC 438
33
3
NC 448
33
3
NC 465
34
3
NC 475
34
3
NC 485
34
3
* Weight without packing.
SIZE 1
SIZE 2
SIZE 3

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4. Electric wiring
Power board NC 209,214
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

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Power board NC 218, 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.

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Power board NC 306,309,406,409
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.

9
Power board NC 314,318,325,330,414,418,425,430
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.

10
Power board NC 338,348,365,375,385,438,448,465,475,485
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.
LINE
L2
L1
P.E.
W
P.E
L3
V
U
MOTOR