Honeywell NXS0003V35A2H1 Operation manual

® U.S. Registered Trademark EN0B-0620GE51 R1107
Copyright © 2007 Honeywell Inc. • All rights reserved
NXS0003V35A2H1 - NXS0310V35A2H0
NXS0003V35A5H1 - NXS0310V35A5H0
NXS INVERTERS
PRODUCT DATA
GENERAL
These variable frequency drives provide step-less speed
control for all open-loop (no speed feedback from motor)
applications in HVAC and industrial environments:
•Pumps
•Fans
•Compressors
•Conveyors
•Lifts
•Escalators
•Mixers
FEATURES
•Most compact size in the market (especially IP54)
•Integrated RFI-filters and AC-chokes
•Application adapting Start Up Wizard
•Application adapting Quick menu
•Flexible “ALL-IN-ONE” multipurpose software with
predefined applications
•Alphanumeric keypad with memory and backup
functions
•Easy “keypad – remote” change with 1 button
•Trip free operation with safety switch
•Silent motor operation with 10 kHz switching
frequency
•Overtemperature ride-through
•Power ride-through
•Integrated PID controller
•Built-in PLC
•Integrated PFC (Pump & Fan Cascade) Controller
•The best available fully controlled pump cascade
system with special software - Multimaster PFC
SPECIFICATIONS
Mains Connection
Input voltage U
in
380…500 Vac (-15 …+10%) 3~
208…240 Vac (-15 …+10%) 3~
525…690 Vac (-15 …+10%) 3~
Input Frequency 45...66 Hz
Connection to mains Once per minute or less
Motor Connection
Output voltage 0…U
in
Continuous output current:
Low overload I
L
: +40°C, overload 1.1 x I
L
(for fan/pump) (1 min / 10 min)
High overload I
H
: +50°C, overload 1.5 x I
H
(for machines) (1 min / 10 min)
Starting Torque:
Low overload 150%
(for fan/pump)
High overload 200%
(for machines)
Starting Current 2xI
H
for 2s/20s
Output Frequency 0…320 Hz; up to 7200 Hz with
special software
Frequency resolution 0.01 Hz

NXS VARIABLE FREQUENCY DRIVES
EN0B-0620GE51 R1107 2
Control Characteristics
Control Method Frequency Control U/f, Open-
Loop Sensorless Vector
Control
Switching Frequency:
FR4 – FR6 (1.1-30kW)
1...16 kHz;
NXS0003…- NXS0061… Default: 10 kHz (no derating)
FR7 – FR9 (37-160 kW)
1…10 kHz
NXS0072…- NXS0310… Default: 3.6 kHz
Frequency reference:
Analogue input Resolution 0.1% (10 bit),
accuracy ±1%
Keypad reference Resolution 0.01 Hz
Field Weakening point 8…320 Hz
Acceleration time 0…3000 sec
Deceleration time 0…3000 sec
Braking torque DC-brake: 30%*TN (without
brake option)
Ambient Conditions
Ambient operating Temperature:
Low overload -10°C (no frost)…+45°C
(for Fan/Pump) (with 24 h average +40°C)
Storage temperature -40…+70°C
Relative humidity 0…95% RH, non-condensing,
non-corrosive, no dripping
water
Air quality:
Chemical vapors IEC 721-3-3, unit in operation,
class 3C2
Mechanical particles IEC 721-3-3, unit in operation,
class 3S2
Altitude 100% load capacity (no
derating) up to 1000 m
-1% derating for each 100 m
above 1000 m; max. 3000 m
Relative humidity 0…95% RH, non-condensing,
non-corrosive, no dripping
water
Vibration: 5...150 Hz
EN50178/EN60068-2-6 Displacement amplitude 1 mm
(peak) at 5...15.8 Hz
Max acceleration amplitude
1 G at 15.8...150 Hz
Shock: UPS Drop Test (for applicable
EN50178, IEC 68-2-27 UPS weights)
Storage and shipping: max
15 G, 11 ms (in package)
Enclosure class IP21 : NXS___ V35A2…
IP54 : NXS___ V35A5…
Electro Magnetic Compatibility (EMC)
Immunity Complies with EN50082-1, -2,
EN61800-3
Emissions:
Standard in all EMC-level H: EN 61800-3
(2004) Cat C2, EN 55011
Class A
Integrated option in: EMC level C: EN 61800-3
FR4 – FR6 (1.1-30kW) (2004) Cat C1, EN 55011
NXS0003…- NXS0061… Class B
Safety
EN50178, EN60204-1, CE, GOST R, IEC 61800-5 (see unit
nameplate for more detailed approvals)
Control Connections
Analogue input voltage 0...+10 V, Ri = 200 kΩ,
resolution 10 bit, accuracy ±1%
Analogue input current 0(4)…20 mA, Ri = 250 Ω
differential resolution 0.1%,
accuracy ±1%
Digital inputs 6 positive logic; 18…24 Vdc
Auxiliary voltage +24 V, ±15%, max. 100 mA
Output reference voltage +10 V, +3%, max. load 10 mA
Analogue output 0(4)…20 mA; RL max. 500Ω;
resolution 16 bit; accuracy ±1%
Relay outputs 2 programmable change-over
relay output (1 NO/NC and 1
NO). Switching capacity:
24 Vdc / 8 A, 250 Vac / 8 A,
125 Vdc / 0.4 A. Min. switching
load: 5 V / 10 mA
Digital output Open collector output, 50 mA /
48 V
Motor thermistor Input R
TRIP
= 4.7 kΩ(PTC),
electrically isolated

NXS VARIABLE FREQUENCY DRIVES
3 EN0B-0620GE51 R1107
Protection
Overvoltage protection 911 Vdc
Undervoltage protection 333 Vdc
Earth-fault protection In case of earth fault in motor
or motor cable, only the
frequency converter is
protected
Input phase supervision YES
Motor phase supervision YES
Overcurrent protection Trip limit 4.0*I
H
instantaneously
Unit overtemp. protection YES
Motor overload protection YES
Motor stall protection YES (fan/pump blocked)
Motor underload prot. YES (pump dry / belt broken
detection)
Short-circuit protection
of +24 V and +10 V YES
reference voltages
PRODUCT IDENTIFICATION CODE
NXS 0003 V3 5 A 2 H 1
Brake chopper
0 = No brake chopper
1 = Internal brake chopper
EMC emission level
H = Fulfils standard EN61800-3 [2004] Cat C2
T = Fulfils standard EN61800-3 for IT Networks
C = Fulfils standard EN61800-3 [2004] Cat C1
(exception : Radiated emissions of the IP21 units
meet only the requirements of C2)
Enclosure class
2 = IP21
5 = IP54
Control keypad
A = Standard (alpha-numeric)
G = Graphic display (for Chinese and Cyrillic letters)
Nominal mains voltage
2 = 230 (208-240) Vac
5 = 400 (380-500) Vac
6 = 690 (525-690) Vac
Input Phases
V3 = 3 Phase
Nominal current (low overload)
0003 = 3A etc.
Product range: NXS
Fig. 1. Product Identification Code

NXS VARIABLE FREQUENCY DRIVES
EN0B-0620GE51 R1107 4
MODELS IN STANDARD SELECTION
Mains voltage 3~ 380-500 V, 50/60 Hz, EMC class H, Series NXS
Motor shaft power Loadability
400 V supply Low High
Frequency
converter type
Low
overload
(for pump /
fan) 40°C P
[kW]
High
overload (for
machines)
50°C P [kW]
Rated
con-
tinuous
current
I
L
[A]
10%
over-
load
current
[A]
Rated
con-
tinuous
current
I
H
[A]
50%
over-
load
current
[A]
Mechanical
size
enclosure /
protection class
Dimensions
WxHxD
[mm]
Weight
[kg]
NXS0003V35A2H1 1.1 0.75 3.3 3.6 2.2 3.3 FR4/IP21 128x292x190 5
NXS0004V35A2H1 1.5 1.1 4.3 4.7 3.3 5.0 FR4/IP21 128x292x190 5
NXS0005V35A2H1 2.2 1.5 5.6 6.2 4.3 6.5 FR4/IP21 128x292x190 5
NXS0007V35A2H1 3 2.2 7.6 8.4 5.6 8.4 FR4/IP21 128x292x190 5
NXS0009V35A2H1 4 3 9 9.9 7.6 11.4 FR4/IP21 128x292x190 5
NXS0012V35A2H1 5.5 4 12 13.2 9 13.5 FR4/IP21 128x292x190 5
NXS0016V35A2H1 7.5 5.5 16 17.6 12 18 FR5/IP21 144x391x214 8.1
NXS0022V35A2H1 11 7.5 23 25.3 16 24 FR5/IP21 144x391x214 8.1
NXS0031V35A2H1 15 11 31 34 23 35 FR5/IP21 144x391x214 8.1
NXS0038V35A2H1 18.5 15 38 42 31 47 FR6/IP21 195x519x237 18.5
NXS0045V35A2H1 22 18.5 46 51 38 57 FR6/IP21 195x519x237 18.5
NXS0061V35A2H1 30 22 61 67 46 69 FR6/IP21 195x519x237 18.5
NXS0072V35A2H0 37 30 72 79 61 92 FR7/IP21 237x591x257 35
NXS0087V35A2H0 45 37 87 96 72 108 FR7/IP21 237x591x257 35
NXS0105V35A2H0 55 45 105 116 87 131 FR7/IP21 237x591x257 35
NXS0140V35A2H0 75 55 140 154 105 158 FR8/IP21 291x758x344 58
NXS0168V35A2H0 90 75 170 187 140 210 FR8/IP21 291x758x344 58
NXS0205V35A2H0 110 90 205 226 170 255 FR8/IP21 291x758x344 58
NXS0260V35A2H0 132 110 261 287 205 308 FR9/IP21 480x1150x362 146
NXS0310V35A2H0 160 132 300 330 245 368 FR9/IP21 480x1150x362 146
NXS0003V35A5H1 1.1 0.75 3.3 3.6 2.2 3.3 FR4/IP54 128x292x190 5
NXS0004V35A5H1 1.5 1.1 4.3 4.7 3.3 5.0 FR4/IP54 128x292x190 5
NXS0005V35A5H1 2.2 1.5 5.6 6.2 4.3 6.5 FR4/IP54 128x292x190 5
NXS0007V35A5H1 3 2.2 7.6 8.4 5.6 8.4 FR4/IP54 128x292x190 5
NXS0009V35A5H1 4 3 9 9.9 7.6 11.4 FR4/IP54 128x292x190 5
NXS0012V35A5H1 5.5 4 12 13.2 9 13.5 FR4/IP54 128x292x190 5
NXS0016V35A5H1 7.5 5.5 16 17.6 12 18 FR5/IP54 144x391x214 8.1
NXS0022V35A5H1 11 7.5 23 25.3 16 24 FR5/IP54 144x391x214 8.1
NXS0031V35A5H1 15 11 31 34 23 35 FR5/IP54 144x391x214 8.1
NXS0038V35A5H1 18.5 15 38 42 31 47 FR6/IP54 195x519x237 18.5
NXS0045V35A5H1 22 18.5 46 51 38 57 FR6/IP54 195x519x237 18.5
NXS0061V35A5H1 30 22 61 67 46 69 FR6/IP54 195x519x237 18.5
NXS0072V35A5H0 37 30 72 79 61 92 FR7/IP54 237x591x257 35
NXS0087V35A5H0 45 37 87 96 72 108 FR7/IP54 237x591x257 35
NXS0105V35A5H0 55 45 105 116 87 131 FR7/IP54 237x591x257 35
NXS0140V35A5H0 75 55 140 154 105 158 FR8/IP54 291x758x344 58
NXS0168V35A5H0 90 75 170 187 140 210 FR8/IP54 291x758x344 58
NXS0205V35A5H0 110 90 205 226 170 255 FR8/IP54 291x758x344 58
NXS0260V35A5H0 132 110 261 287 205 308 FR9/IP54 480x1150x362 146
NXS0310V35A5H0 160 132 300 330 245 368 FR9/IP54 480x1150x362 146

NXS VARIABLE FREQUENCY DRIVES
5 EN0B-0620GE51 R1107
HONEYWELL EMC CLASSES AND MARKET REQUIREMENTS
Fig. 2. EMC classes in practice
EMC levels
Hospital Airport Residential Area Commercial Light Industry Area Heavy Industry
C O O
H R R R R O O
L R R
T R (IT Network)
O = optional, R = required
C= EN61800-3 [2004] Category C1 (integrated option up to 30 kW)
H= EN61800-3 [2004] Category C2 (standard in NXS)
L= EN61800-3 [2004] industrial requirements fulfilled (NXS units in 200 - 400 kW)
T= EN61800-3 [2004] IT network (e.g. ships) requirements fulfilled, size FR4-FR8 inverters
(NXS0003-NXS0205) can be easily converted to T-class from standard EMC class. Instructions for
this can be found from NX Series User’s Manual included in all NXS deliveries.
1 2 3 4 5 6

NXS VARIABLE FREQUENCY DRIVES
EN0B-0620GE51 R1107 6
MECHANICAL DIMENSIONS AND MOUNTING
The frequency converter can be mounted in either vertical or horizontal position on the wall or on the back plane of a cubicle. It
shall be fixed with four screws (or bolts, depending on the unit size). Lift units bigger than FR7 out of the package using a jib
crane.
Fig. 3. NXS FR4 – FR8 (NXS0003… - NXS0205...) dimensions
Dimensions [mm]
Type W1 W2 H1 H2 H3 D1 ∅E1∅E2∅*
NXS0003—NXS0012 128 100 327 313 292 190 7 3 x 28.3
NXS0016—NXS0031 144 100 419 406 391 214 7 2 x 37 1 x 28.3
NXS0038—NXS0061 195 148 558 541 519 237 9 3 x 37
NXS0072—NXS0105 237 190 630 614 591 257 9 3 x 47
NXS0140—NXS0205 285 255 755 732 721 312 9 3 x 59
W1
W2
H1 H2
Ø
D1
H3
fr5ip21.fh8
Ø

NXS VARIABLE FREQUENCY DRIVES
7 EN0B-0620GE51 R1107
Fig. 4. NXS FR9 (NXS0260… - NXS0310...) dimensions
Dimensions [mm]
Type W1 W2 W3 W4 H1 H2 H3 H4 D1 D2 D3 ∅
NXS0260—NXS0310 480 400 165 9
1150*
1120 721 205 362 340 285 21
Enough free space shall be left above and below the frequency converter to ensure sufficient air circulation and cooling. You will
find the required dimensions for free space in the table below.
Type Dimensions
A A2B C D
NXS0003—
NXS0012 20 20 100 50
NXS0016—
NXS0031 20 20 120 60
NXS0038—
NXS0061 30 20 160 80
NXS0072—
NXS0105 80 80 300 100
NXS0140—
NXS0205 80 150 80 300 200
NXS0260—
NXS0310 50 80 400
250
(350*)
Fig. 5. NXS installation space
A= clearance around the freq. converter (see also A2 and B)
A2 = clearance needed on either side of the frequency converter
for fan change (without disconnecting the motor cables)
B= distance from one frequency converter to another or
distance to cabinet wall
C= free space above the frequency converter
D= free space underneath the frequency converter
* = min. clearance for fan change
D1 D2
Ø
D3
W1 W2
H1
H2
H3
H4
W3
H3
W4 W4
C
A
NK5_2
A
2
A
2
D
B
A
B

NXS VARIABLE FREQUENCY DRIVES
EN0B-0620GE51 R1107 8
REQUIRED COOLING AIR
Type Cooling air required [m3/h)
FR4: NXS0003—NXS0012 70
FR5: NXS0016—NXS0031 190
FR6: NXS0038—NXS0061 425
FR7: NXS0072—NXS0105 425
FR8: NXS0140—NXS0205 650
FR9: NXS0260—NXS0310 1300
CABLING
Fig. 6. NXS power connections FR4-FR6 in FR7-FR9 connectors B-, B+ and R- do not exist as standard.
Use cables with heat resistance of at least +70°C. The cables and the fuses must be dimensioned according to the tables below.
The fuses function also as cable overload protection. These instructions apply only to cases with one motor and one cable
connection from the frequency converter to the motor. In any other case, ask the technical support for more information.
Connection Cable type
Mains cable Power cable intended for fixed installation and the specific mains voltage. Shielded cable not required.
(NKCABLES/MCMK or similar recommended)
Motor cable
Power cable equipped with compact low-impedance shield and intended for the specific mains
voltage.(NKCABLES /MCCMK, SAB/ÖZCUY-J or similar recommended).
(360º earthing of both motor and FC connection required to meet the EMC requirements)
Control cable Screened cable equipped with compact low-impedance shield (NKCABLES /jamak, SAB/ÖZCuY-O or similar)
Terminal cable size
Frame Type IL
[A]
Fuse
[A]
Mains and motor cable
Cu [mm2]
Main terminal [mm
2
] Earth terminal [mm
2
]
NXS0003—NXS0009 3—9 10 3*1.5+1.5 1—4 1—2.5
FR4
NXS0012 12 16 3*2.5+2.5 1—4 1—2.5
NXS0016 16 20 3*4+4 1—10 1—10
NXS0022 22 25 3*6+6 1—10 1—10
FR5
NXS0031 31 35 3*10+10 1—10 1—10
NXS0038—NXS0045 38—45 50 3*10+10 2.5—50 Cu
6—50 Al 6—35
FR6
NXS0061 61 63 3*16+16 2.5—50 Cu
6—50 Al 6—35
NXS0072 72 80 3*25+16 2.5—50 Cu
6—50 Al 6—70
NXS0087 87 100 3*35+16 2.5—50 Cu
6—50 Al 6—70
FR7
NXS0105 105 125 3*50+25 2.5—50 Cu
6—50 Al 6—70
NXS0140 140 160 3*70+35 25—95 Cu/Al 25—95
NXS0168 168 200 3*95+50 95—185 Cu/Al 25—95
FR8
NXS0205 205 250 3*150+70 95—185 Cu/Al 25—95
NXS0260 261 315 3*185+95 or 2*(3*120+70) 95—185 Cu/Al 2 5—95
FR9
NXS0310 300 315 2*(3*120+70) 95—185 Cu/Al 2 5—95
nxlk58.fh8
L1 L2 L3
B- B+ R- U/T1 V/T2 W/T3

NXS VARIABLE FREQUENCY DRIVES
9 EN0B-0620GE51 R1107
Fig. 7. NXS control connections
1 +10 Vref Reference output (voltage for
potentiometer etc.)
2 AI1 + Analogue Input 1 (V signal)
3 AI1 – I/O ground
4 AI2 + Analogue Input 2 (mA signal)
5 AI2 – Analogue Input 2 (mA signal)
6 +24 V +24 V input/output (max. 0.1 A)
7 GND I/O ground
8 DIN1 Digital Input 1
9 DIN2 Digital Input 2
10 DIN3 Digital Input 3
11 CMA Digital input common for DIN1,
DIN2, and DIN3
12 +24 V Same as terminal 6
13 GND I/O ground
14 DIN4 Digital Input 4
15 DIN5 Digital Input 5
16 DIN6 Digital Input 6
17 CMB Digital input common for DIN4,
DIN5, and DIN6
18 AO1 +
19 AO1 –
Analogue output 1, default range:
0–20 mA/RL, max. 500 Ω
20 DO1 Open collector Output
21 RO1
22 RO1
23 RO1
Relay 1
NO/NC
25 RO2
26 RO2
Relay 2
NO
28 TI+
29 TI-
Thermistor Input;
Rtrip = 4.7 kΩ(PTC)

NXS VARIABLE FREQUENCY DRIVES
EN0B-0620GE51 R1107 10
FEATURES / FUNCTIONS
•Easy to set-up and operate features
Alphanumeric keypad is included as standard
-Clear text display with multi-language support
-Possibility to use real units in monitoring
-Possibility to monitor 3 values simultaneously with Multimonitor
view
-Password protection possible
Keypad equipped with memory and backup function
-Keypad equipped with memory for uploading and downloading
parameters. Possibility to copy parameters from unit to unit with
standard keypad
-Keypad can be used as a backup for parameter settings
Application adapting Start-Up Wizard
-Real text-based wizard which guides the user through setup of
all applications easily
-Start-up wizard adapts to the application selected and guides
the operator to make the settings which are relevant for just the
application in question
Application adapting Quick Menu
- Quick menu called “Basic Parameters- group” adapts to the application
selected
-
Includes always the relevant parameters for just the application in
question in to the group
“Keypad – Remote” Operation
-Single button operation to change the control to manual (keypad)
and back
-Useful function when commissioning and testing HVAC
applications.
-Consistency: all Honeywell VFDs behave in similar way
•Compact and Robust design
Press
LEFT ARROW for 3 s to
change control place

NXS VARIABLE FREQUENCY DRIVES
11 EN0B-0620GE51 R1107
Features Functions Benefits
Enclosure Class
•NXS available with both IP21 and IP54
•Smallest and lightest inverter available in
the market (especially IP54)
•Consumes less space
•Easy to install
Modular design
•Separated cooling channel (no electronics
in air flow)
•Power electronics fully enclosed in metal
•Easily replaceable cooling fans
•Increased reliability
•Easy maintenance
Built in input AC choke
and RFI filter
•Protection against input voltage surges
•Lower total harmonic distortion THD
•Fulfills all EMC requirements in buildings
•Compact
•No additional costs
•Uninterruptible operation and energy saving functions
Features Functions Benefits
Overtemperature ride
through
Automatically adjusts switching frequency to
adapt to unusual increase in ambient
temperature
•Uninterruptible operation
Power ride through Automatically lowers motor speed to adapt to
sudden voltage drop such as power loss •Uninterruptible operation
Tripless output switching
Ensures tripless operation when an output
switch (e.g. safety switch) is operated between
the motor and the VFD. Truly intelligent and
highly reliable function to ensure better
functionality than with any other VFD
•Uninterruptible operation
Auto restart function
Auto restart function can be configured to
make VFD restart automatically once fault is
addressed
•Uninterruptible operation
Energy Saving Function
“Flux Optimization”
Flux Optimization automatically minimizes
energy consumption.
•Even 5% increase in energy
savings.

NXS VARIABLE FREQUENCY DRIVES
EN0B-0620GE51 R1107 12
•VFD and motor control features
Features Functions Benefits
Best in performance
Flying start
Ability to get an already spinning fan under
speed control
•Important in clean room
production to ensure the
standard conditions
Automatic torque boost
function Boosts initial voltage to start high inertia fans
•Avoids tripping and enables
smooth starts also to high
inertia loads
Motor auto identification Performs measurements to find out motor
internal variables such as stator resistance. •Increases reliability
High Switching
Frequency
Honeywell NXS has higher switching
frequency than the most of the competition as
standard (= no derating required)
•Less audible noise from the
motor
Prohibit frequency Overriding the critical frequencies to avoid
resonance
• Elimination of resonance
Temperature-controlled
fans Fan stops operating when not needed
•Less audible noise from VFD
itself
•Increase of energy savings
•HVAC control features
Features Functions Benefits
Inbuilt PID controllers
•Normal and Inverse Regulation
•Delta P regulation with 2 standard pressure
transmitters
•Volume flow control
•Less wiring since sensor normally close to
inverter
•Cost savings
•Faster response in process
closed loop
Sleep Mode Shutting down the motor, when no demand •Saves energy
Fire override mode Keeps fan/pump running in case of fire •Legal requirement
PFC (Pump and Fan
Cascade) -Controller
Controls total pumping system with several
parallel pumps by equally sharing the load
•Longer lifetime of the system
•Lower investment cost for
pumping system
•Special application software
Features Functions Benefits
Multimaster PFC
•The best available fully controlled pump
cascade VFD system in the market
•System with a VFD for each pump
•Only 2 wires needed for the connection
between inverters – no additional hardware
•Full control over the total pumping system
•Equal usage of each pump
• Fully redundant system
•Longer lifetime of the system
•Increased reliability
•Increased energy savings
with optimized usage of
pumps
• Fully independent pump
control system can be
created for pumping stations

NXS VARIABLE FREQUENCY DRIVES
13 EN0B-0620GE51 R1107
•“ALL-IN-ONE” MULTIPURPOSE software
Flexible “ALL-IN-ONE” multipurpose software offers predefined applications as described below for different kind of
needs. This flexible package really makes it possible to answer any needs from the application with Honeywell NXS.
Basic application
-The most typical choice for HVAC - covers most of the applications
-Everything needed for basic speed control
-Includes only one small group of parameters with default values to create simple selection
-Very simple commissioning
-The control signals of this application are fixed with default functions (not configurable)
-The Basic Application is set as the default when the drive leaves the factory.
Standard application
-The 2nd most typical choice for HVAC - extended version of the basic application
-For more demanding cases where more functionality is required
-The Standard Application has the same I/O-configuration and control logic as the Basic application
(i.e. no rewiring needed).
-All inputs and all outputs are freely configurable
-More functions, e.g. dynamic braking, DC braking, Prohibit Frequency for resonance elimination
Fig. 8. Basic speed control – the typical use of basic and standard application
Variable Frequency Drive Control System
Motor
Sensor
Pump
or
Fan
Load
Speed Signal
V signal to AI1
mA signal to AI2

NXS VARIABLE FREQUENCY DRIVES
EN0B-0620GE51 R1107 14
Local/Remote application
-The Local/Remote Control Application can be used in applications where the drive must be
controlled from two different locations. Control logic as the Basic application - i.e. no rewiring
needed.
-The control locations (A&B) are programmable and can be selected via digital inputs.
-There can be separate references for operation and Start/Stop-inputs
-All inputs and all outputs are freely configurable
Multi-Step Speed Application
-The Multi-Step Speed Control Application can be used in applications where multiple fixed speeds
are required.
-A total of 15 +2 speeds are available:
oone basic speed (analogue voltage or current)
o15 multi-step speeds
oone jogging speed.
-Selection of the speeds is via digital inputs.
-Mechanical brake control available.
-All inputs and outputs are freely configurable
PID-Control Application
-The PID Control Application can be used where there is a need to keep a constant temperature or
pressure etc.
-2 control locations available (by-pass of regulator possible)
-Source A is PID-controller
oanalogue input or a mathematical function of the analogue inputs
-Source B is a direct speed reference
oanalogue input, a motorized potentiometer or control panel
-Stable control for a variety of tasks
-All inputs and outputs are freely configurable
Fig. 9. PID – Control with Variable frequency drive
Variable Frequency Drive Control System
Motor
Load
Fan
or
Pump
Sensor
Setpoint Signal
Actual value

NXS VARIABLE FREQUENCY DRIVES
15 EN0B-0620GE51 R1107
Multi-Purpose Control Application
-The most flexible application
-The frequency reference can be an analogue input, joystick, motor potentiometer or a
mathematical function of the analogue inputs.
-Multi-step speeds or jogging speed can also be programmed.
-More programmable digital inputs
-Best option with difficult applications – all Honeywell NXS capabilities accessible through this
application
PFC (Pump and Fan Cascade) Control Application
-Used for controlling a group of pumps or fans.
-The internal PID regulator controls the speed of one motor and provides start/stop commands for 1
to 4 auxiliary motors (connected directly to mains)
-Provides redundancy and high efficiency.
-Four auxiliary pumps or fans can be connected
-Autochange (if activated) allows to set the starting and stopping order of the drives, controlled by
the pump and fan automatics (including the main drive)
Fig. 9. PFC- controller application with autochange
EXTERNAL
CONTACTORS

NXS VARIABLE FREQUENCY DRIVES
EN0B-0620GE51 R1107 16
•Optional application software
Several special application software are available for download form Honeywell support web
site free of charge. And also special features can be created with the built in PLC if required.
In below there is presented one of the most commonly used special applications Multimaster
PFC.
Multimaster PFC (Pump and Fan Cascade) Application
-Dedicated solution for parallel pumping applications
-Unique on the market
-Replaces traditional contactor systems and can perfectly work as a stand alone system
-Fully integrated in VFD
-Only 2-wire connection required between inverters - no additional hardware
-Recommended for main pumping, booster stations, watering systems, sewage water pumping
stations
-Adds reliability, minimizes risk for interruptions, fully redundant
-Functionality: PID, Autochange anytime, Sleep function
Fig. 10. Multimaster PFC system
-One NXS Converter for each pump
-Integrated control of 2-3 pumps
-Redundant system
-Higher Efficiency at low consumption hours
-Automatic alternation without pressure spikes
-Individual or common pressure sensor
-Fewer parts than normal PFC application
-Uses Interlocks to take out pumps for service

NXS VARIABLE FREQUENCY DRIVES
17 EN0B-0620GE51 R1107
OPTIONAL ACCESSORIES
Field bus option boards
Fieldbus Order type
code
RS485 (Modbus RTU, N2) NXOPTC2
Profibus DP NXOPTC3
LonWorks NXOPTC4
Profibus DP (D9 type connector) NXOPTC5
CANopen (slave) NXOPTC6
Devicenet NXOPTC7
RS485 ( Modbus and N2; with D9 connector) NXOPTC8
Modbus/TCP (Ethernet) NXOPTCI
BACnet NXOPTCJ
I/O expander option boards
Additional I/O Order type code
6 Digital Inputs/Outputs (programmable) NXOPTB1
2 Relays, 1 Thermistor NXOPTB2
1 Analogue Input (mA), 2 Analogue Output (mA) NXOPTB4
3 Relays NXOPTB5
3 Pt100 inputs NXOPTB8
1 Relay, 5 Vac inputs (42-240 Vac) NXOPTB9
Additional RS-232 connection (e.g. for 2nd keypad) NXOPTD3
Other typical accessories
Option Order type code Note
DRA02B NXS Door installation set for display panel, 2m cable
DRA-04B NXS Door installation set for display panel, 4m cable
Panel door installation sets
DRA15B NXS Door installation set for display panel, 15m cable
Keypad NXPANG NXS graphical keypad (for Chinese and Cyrillic letters)
RS232C2M 2m RS232 serial link cable for PC connection
RS232C-4M 4m RS232 serial link cable for PC connection
RS232 Cables*
RS232C15.0M 15m RS232 serial link cable for PC connection
* NXS has standard RS232 connection, so no additional adapters are required

NXS VARIABLE FREQUENCY DRIVES
Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative:
Automation and Control Solutions
Honeywell GmbH
Böblinger Straße 17
D-71101 Schönaich
Phone: [phone]
Fax: [phone]
http://ecc.emea.honeywell.com
Subject to change without notice. Printed in Germany
EN0B-0620GE51 R1107
SPARE PARTS
Type Order type code Note
NXOPTA1 Standard I/O replacement for:
6 DI, 1 DO, 2 AI (mA/V), 1 AO (mA/V)
Standard I/O spare parts
NXOPTA3 Standard I/O replacement for:
1 RO (NO/NC), 1 RO (NC), Therm
Keypad spare parts NXPANA NXS standard alphanumeric keypad
NX-FAN-4 FR4 (NXS0003-0012) main cooling fan assembly
NX-FAN-5 FR5 (NXS0016-0031) main cooling fan assembly
NX-FAN-6 FR6 (NXS0038-0061) main cooling fan assembly
Main cooling fans
NX-FAN-7 FR7 (NXS0072-0105) main cooling fan assembly