Metso NELES NDX Series Operating and maintenance manual

For full information go to our website:
www.metso.com/ndx
7 NDX 71 en - 4/2019
Installation,
Maintenance and
Operating Instructions
NDX
Intelligent valve controller

TABLE OF CONTENTS
GENERAL 2
1 FOR YOUR SAFETY 5
1.1 BEFORE YOU BEGIN 5
2 SAFETY PRECAUTIONS 6
3 PRODUCT SUMMARY 8
3.1 INTRODUCTION TO NELES®
NDX INTELLIGENTVALVE CONTROLLER 8
3.2 KEY FEATURES 8
3.3 OPERATION PRINCIPLE 9
3.4 OPTIONS 9
3.4.1 Internal position transmitter 9
3.4.2 Digital output (namur) 10
3.4.3 Gauge block 10
3.5 MARKINGS 10
3.6 EXPLODED VIEW 12
3.7 TOOLS 14
SPECIFICATIONS 15
4 TECHNICAL DESCRIPTION 15
4.1 GENERAL 15
4.2 ENVIRONMENTAL INFLUENCE 15
4.3 ELECTROMAGNETIC PROTECTION 15
4.4 ENCLOSURE 15
4.5 PNEUMATICS 15
4.6 ELECTRONICS 15
4.7 APPROVALS 16
LOGISTICS 17
5 TRANSPORTATION AND STORAGE 17
6 RECYCLING AND DISPOSAL 18
MOUNTING 19
7 LINEAR MOUNTING 19
7.1 INSTALLATION TO NELES GLOBE 19
7.1.1 Installation to Neles Globe (VD29) 19
7.2 INSTALLATION TO IEC MOUNTING FACE 21
7.3 INSTALLATION TO ANY LINEAR ACTUATOR 23
8 ROTARY MOUNTING 25
8.1 INSTALLATION TO NELES BSERIES
ACTUATORS  MAGNET MOUNTING 25
8.2 INSTALLATION TO NELES BSERIES
ACTUATORS  BRACKET MOUNTING 25
8.3 INSTALLATION TO ANY ROTARY ACTUATOR 26
9 PNEUMATICS PIPING 27
10 ELECTRICAL INSTALLATION 34
11 INSTALLATION OF DEVICE OPTIONS 36
11.1 PRESSURE GAUGE BLOCK INSTALLATION 36
START UP 38
12 LOCAL USER INTERFACE (LUI) 38
12.1 OVERVIEW 38
12.2 LUI  USER ACCESS CONTROL 38
12.3 CALIBRATION REQUIRED PRIOR TO START 39
12.4 MONITORING VIEWS 40
12.5 ACTIVE ALERTS 40
12.6 EXCEPTIONS 41
12.7 REMOTE ACTIONS 41
12.8 MENU 41
12.8.1 Guided start-up 42
12.8.2 Calibration 43
12.8.3 Parameters 44
12.8.4 Linearization 49
12.8.5 Manual control 50
12.8.6 User Guide 50
12.8.7 About 50
OPERATION 51
13 DEVICE TYPE MANAGER (DTM) 51
13.1 INTRODUCTION TO DTM 51
13.1.1 Field Device Tool 51
13.1.2 FDT Functions 51
13.1.3 For More Information on the FDT Standard 51
13.2 GETTING STARTED 51
13.2.1 Software requirements 51
13.2.2 Installing DTM 51
13.2.3 Updating DTM installation 51
13.3 USER INTERFACE INFORMATION 52
13.4 USING DTM 53
13.4.1 DTM settings 53
13.4.2 Frame application functions 53
13.4.3 Import/Export 53
13.4.4 Printing 53
13.5 NDX DTM 53
13.5.1 Parameterize Oine 53
13.5.2 Parameterize Online 54
13.5.2.1 Performance 54
13.5.2.2 Device Information 54
13.5.2.3 Commissioning 55
13.5.2.4 Status Conguration 55
13.5.3 Diagnosis 69
13.5.3.1 Performance 69
13.5.3.2 Online Valve Signature 69
13.5.3.3 Event log 69
13.5.3.4 Oine Testing 70
13.5.3.5 Oine Test Results 70
13.5.3.6 Counters 71
13.5.3.7 Trends 71
13.5.3.8 Valve Position Histogram 72

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
GENERAL INFO
SPECIFICATIONS
LOGISTICS
MOUNTING
START UP
OPERATION
MAINTENANCE
DIMENSIONS
HOW TO ORDER
GENERAL INFO
MAINTENANCE 73
14 MAINTENANCE 73
14.1 GENERAL 73
14.2 ORDERING SPARE PARTS 73
14.3 REPLACING PARTS 73
14.3.1 Prestage 73
14.3.2 Removal of prestage 73
14.3.3 Installation of prestage 74
14.3.4 Relay valve 75
14.3.5 Removal of relay valve 75
14.3.6 Installation of relay valve 76
14.3.7 Local User Interface 77
14.3.8 Electronics module 77
14.4 REPLACING OPTIONS 79
14.4.1 Pressure Gauge Block 79
DIMENSIONS 80
15 DIMENSION DRAWINGS 80
15.1 NDX1510 80
15.2 NDX_511_ 81
15.3 NDX_512_ 82
15.4 POSITION FEEDBACK MAGNETS FOR LINEAR
AND ROTARY ACTUATORS 83
15.5 PRESSURE GAUGE BLOCK 83
EC DECLARATION OF CONFORMITY 85
16 EC DECLARATION OF CONFORMITY 85
HOW TO ORDER 86
17 HOW TO ORDER INTELLIGENT VALVE CONTROLLER NDX 86

4
WARNING
Showing information about
possible hazards (etc.)
NOTE
Comments about how to get most out
of the product (etc.)
CAUTION
Information about being careful when
using the products in dierent scenes (etc.)
READ THESE INSTRUCTIONS FIRST!
These instructions provide information about the safe handling and operation of the intelligent valve controller.
If you require additional assistance, please contact the manufacturer or manufacturer’s representative.
Addresses and phone numbers are printed on the back cover.
See also www.metso.com/valves for the latest documentation.
SAVE THESE INSTRUCTIONS!
Subject to change without notice.
All trademarks are property of their respective owners.

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
5
NDX VALVE CONTROLLER
READ THESE INSTRUCTIONS FIRST!
These instructions provide information about the safe hand-
ling, installation, commissioning, operation, troubleshoot-
ing, maintenance and replacement of the intelligent valve
controller. These instructions do not contain all detailed
information on every possible aspect of installation, oper-
ation or maintenance.
If you are uncertain about the use of the controller or its
suitability for your intended use or if you require additional
assistance, please contact the manufacturer or manufac-
turer’s representative.
Addresses and phone numbers are printed on the back cover.
See also www.metso.com/NDX for the latest
documentation.
SAVE THESE INSTRUCTIONS FOR LATER USE!
1.1 BEFORE YOU BEGIN
Do not install, operate or maintain intelligent valve con-
troller without being fully trained and qualied in valve,
actuator and accessory installation, operation and main-
tenance. To avoid personal injury or property damage, it
is important to carefully read, understand, and follow all
contents of this user guide, including all safety cautions and
warning. It is also important to be authorized by the plant
operator before operating the intelligent valve controller.
Note, that there are additional safety regulations which
are plant and/or hazardous area related. Those are not
covered in this manual.
1 FOR YOUR SAFETY
GENERAL INFO

6
NDX VALVE CONTROLLER
NOTE
Avoid grounding a welding machine in close
proximity to a valve controller. Damage to
the equipment may result.
CAUTION
Do not exceed the permitted values!
Exceeding the permitted values marked on
the valve controller maycause damage to the
controller and to equipment attached to the
controller and could lead to uncontrolled pres-
sure release in the worst case. Damage to the
equipment and personal injury may result.
CAUTION
Do not remove or dismantle a pressurized
controller!
Removing or dismantling pressurized pneu-
matic components of a valve controller leads to
uncontrolled pressure release. Always shut o
the supply air and release the pressure from the
pipelines and equipment before removing or
dismantling the controller. Otherwise personal
injury and damage to equipment may result.
WARNING
During automatic or manual calibration the
valve operates between open and closed po-
sitions. Make sure that the operation does not
endanger people or processes!
WARNING
Do not operate the device with cover removed!
- Environmental inuence (water, dust etc.)
Ex NOTE
Follow the standards EN/IEC 60079-14 when
installing the equipment and EN/IEC 60079-25
when connecting Ex i interfaces.
Ex Note
For ordinary locations and Class I Div 2 instal-
lations of NDX_ _ _2 have to be supplied by a
Class 2 or Limited Energy Source in accordance
with CSA 61010-1-12/UL 61010-1.
Ex WARNING
Electrostatic charge hazard!
The cover is non-conductive. Clean with
a damp cloth only! Spark hazard!
Protect the aluminum housing from impacts
and friction!
Ex WARNING
For use in the presence of combustible dust.
· Ignition protection relies on the enclosure.
Protect the cover of the valve controller from
impacts.
· When temperature is higher than 70 °C /
158°F the temperature rating of the cable
shall be higher than the ambient temperature.
· Device shall not be subjected to a prolic
charge generating mechanism.
· Accumulation of dust shall be avoided!
Intrinsic Safety (Ex i) WARNING
· Ensure that the complete installation and
wiring is intrinsically safe before operating
the device!
· The equipment must be connected via a
certied Zener barrier placed outside the
hazardous area.
· Temperature rating of selected connection
cable shall be greater than 83 °C.
Ex n WARNING
At an ambient temperature ≥ +70 °C / 158 °F,
the temperature rating of selected connection
cable shall be in accordance with the maximum
ambient temperature range. Selected cable
gland shall not invalidate the type of protection.
Ex d WARNING (NDX Ex d version)
Do not open the device when energized!
Explosion protection is lost.
Ex d WARNING (NDX Ex d version)
After de-energizing, delay one minute
before opening!
2 SAFETY PRECAUTIONS

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
7
NDX VALVE CONTROLLER
Ex d WARNING (NDX Ex d version)
Tightening torque for the housing cover screws
is 15Nm.
Ex d WARNING (NDX Ex d version)
Use a cable gland and blind plug with suitable
Ex d certication.
For ambient temperature over 70 °C / 158 °F
use a heat resistant cable and cable gland
suitable for at least 92 °C / 196 °F.
Ex d WARNING (NDX Ex d version)
Ex d certied cable glands needs to be used.
Maximum of two cable glands installed into
NDX 1/2”NPT ports are allowed.
Ex d WARNING (NDX Ex d version)
If device is installed to Ex d area, it can’t be
installed to Ex i area anymore, and If device is
installed to Ex i area, it can’t be installed to Ex d
area anymore.
Ex d WARNING (NDX Ex d version)
Cover and housing and their ange surfaces
are Ex d critical parts. Extra caution needs to be
taken when handling them. If there are scratches
in ange surfaces or if the cover is dropped, the
cover and/or device needs to be changed.
2 SAFETY PRECAUTIONS
GENERAL INFO

8
NDX VALVE CONTROLLER
3.1 INTRODUCTION TO NELES® NDX INTELLIGENT
VALVE CONTROLLER
Metso’s Neles NDX is the next generation intelligent valve
controller working on all type of control valves and in all
industry areas. It guarantees end product quality in all
operating conditions with incomparable performance,
unique diagnostics, and years of reliable service. The NDX
is a future-proof investment with life-time support for
asset management.
3.2 KEY FEATURES
• Reliable and robust design
• Industry leading pneumatic capacity
• Benchmark control performance
• Simple and fast installation and commissioning
• Local / remote operation
• Wide language support
• Expandable architecture
• HART 6/7 communication as standard
• Advanced device diagnostics including
 Self-diagnostics
 Online diagnostics
 Performance diagnostics
 Communication diagnostics
 Extended o-line tests
 Performance view
 Online Valve Signature
• Extended o-line test capabilities
• Worldwide support for hazardous area approvals
Total cost of ownership
• Fast and reliable installation process
• Low energy and air consumption
• Easy to use diagnostics simplify determining when
valve maintenance is required
• Inherent high air capacity eliminates additional
instrumentation
• One positioner that ts to all control valves; small
and big, rotary and linear, single and double acting
• Available for intrinsically safe and ameproof
applications
Minimized process variability
• Linearization of the valve ow characteristics
• Excellent dynamic and static control performance
• Fast response to control signal change
• Accurate internal measurements
Fig.1
Easy installation and conguration
• Simple / fast conguration and calibration using one
of the following:
 Standard Local User Interface (LUI) accessible
without opening the device cover
 LUI can be rotated according to mounting
position
 Distributed Control System (DCS) asset
management program
• Backwards compatible with retrot kits for easy
replacement of Metso NE700 and ND9000 positioners.
• Easy retro-t to an extensive list of 3rd party valves
• Installation to all common control systems
Open solution
• Metso is committed to delivering products that
freely interface with software and hardware from a
variety of manufacturers; NDX is no exception. This
open architecture allows the NDX to be integrated
with other eld devices to give an unprecedented
level of controllability.
• FDT and EDD based multi-vendor support
conguration
• Support les for NDX are available for free download
from www.metso.com/ndx
NDX mounting on actuators and valves
• Supports all single and double acting pneumatic
actuators
• Both rotary and linear valves
• Guided startup and automatic/manual/1-point
calibration
3 PRODUCT SUMMARY

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
9
NDX VALVE CONTROLLER
Product reliability
• Designed to operate in harsh environmental
conditions
• Rugged modular design
• Excellent temperature characteristics
• Vibration and impact tolerant
• IP66/NEMA4X enclosure
• Protected against humidity
• Resistant to dirty air
• Wear resistant and sealed components
• Fully contactless position measurement
• Fully encapsulated electronics
Predictive maintenance
• Easy access to collected data with any FDT/DTM
software and drivers
• Intelligent diagnostics analysis to visualize control
valve health and performance
• Patented on-line valve signature
• Historical trend and histogram collection
• Diagnostics collected continuously while the
process is running
• Extensive set of o-line tests with accurate key
gure calculations
• Clear notications with on-line alarms
• Condition monitoring tools available
3.3 OPERATION PRINCIPLE
The NDX is a 4–20 mA powered microcontroller based
intelligent valve controller. The device contains a local user
interface enabling conguration and operation without
opening the device cover. Conguration and operation
can also be made remotely by PC with asset management
software connected to the control loop.
After connections of electric signal and pneumatic supply,
the micro controller (C) continuously reads measurements:
• Input signal
• Valve position with contactless sensor (α),
• Actuator pressure (I, II)
• Supply pressure (S)
• Device temperature
Advanced self-diagnostics guarantee that all measurements
operate correctly.
Powerful microcontroller calculates a control signal for I/P
converter (prestage). I/P converter controls the operating
pressure to the pneumatic relay (output stage). Pneumatic
relay moves and actuator pressure changes accordingly. The
changing actuator pressure moves the control valve. The
position sensor measures the valve movement.The control
algorithm modulates the I/P converter control signal until
the control valve position matches the input signal.
Service
Port mA
HART DO
µC
Pos 50.2
P1
P2
Pos
T
S
EXH1
EXH2
PCB
LUI
Prestage
Output stage
Pneumatic actuator
PT/DO
Ps
Fig. 2 Operating principle of double acting valve controller (NDX2512_).
3.4 OPTIONS
Following options are available for NDX valve controller:
• Internal position transmitter
• Digital output (namur)
• Gauge block
3.4.1 Internal position transmitter
Optional position transmitter connection is part of the
electronics module. Position transmitter is connected to
the 2-pole OUT terminal as shown in gure 4. Position
transmitter requires an external power supply.
Fig. 3
3 PRODUCT SUMMARY
GENERAL INFO

10
NDX VALVE CONTROLLER
3.4.2 Digital output (namur)
There are up to two congurable namur type digital outputs
(DO). They can be congured to activate based on valve
position measurement (as a limit switch) or any device status.
Configuration can be done via HART by using Valve
Manager (DTM) or EDD.
Output options can be following:
• One PT and one DO
• Two DOs
3.4.3 Gauge block
Fig. 4
Optional gauge block is available in the following three
options:
1/4 NPT with gauges (block with 1/4NPT threads + gauges)
G1/4 without gauges (block with G1/4 threads)
G1/4 with gauges (block with G1/4 threads + gauges)
3.5 MARKINGS
The valve controller is equipped with three identication
plates.
Identication plate
Identication plate includes following markings
• Contact details of the manufacturer
• Input signal (voltage range)
• Transmitter input signal (voltage range)
• Supply pressure range
• Output
• Enclosure type
• Manufacturing serial number*
• Build number
• H/C-code
• Type code (7 signs)
• Gauge block options
*) Manufacturing serial number explained:
TT= device and factory sign
YY= year of manufacturing
WW = week of manufacturing
NNNN = consecutive number
Example: PH15360001 = controller, year 2015, week 36,
consecutive number 1
Approval and type code plate
Approval and type code plate includes following markings
• Type code (15 signs)
• C-code
• CE mark
• Approvals (max. two)
• Operational temperature
• Input resistance
Fig. 5 Identication plate Fig. 6 Approval and type code
plate
EESF 18 ATEX 014X / IECEx EESF 18.0007X
[ ] II 1 G Ex ia IIC T6...T4 Ga
[ ] II 1 D Ex ia IIIC T85°C...T115°C Da
Tamb T6: -40...+50 °C, T5: +65 °C, T4: +80 °C
EESF 18 ATEX 015X / IECEx EESF 18.0008X
[ ] II 3 G Ex nA IIC T6...T4 Gc
[ ] II 3 G Ex ic IIC T6...T4 Gc
[ ] II 3 D Ex ic IIIC T85°C...T115°C Dc
Tamb T6: -40...+50 °C, T5: +65 °C, T4: +85 °C
See certicate for connection values
Class I, Div 1, Gps A, B, C, D; T4/T5/T6
Ex ia IIC T4/T5/T6 Ga
Class I, Zone 0 AEx ia IIC T4/T5/T6 Ga
Class I, Div 2, Gps A, B, C, D; T4/T5/T6
Ex ic IIC T4/T5/T6 Gc/Ex nA IIC T4/T5/T6 Gc
Class I, Zone 2 AEx ic IIC T4/T5/T6 Gc
AEx nA IIC T4/T5/T6 Gc
INSTALL PER DRAWING / INSTALLER
SUIVANT PLAN F82699 NDX
CONTROL WIRING DIAGRAM
TYPE: NDX2512TG-XU0N0000-000Y
ID: C0000001
Gauge block: [ ] 0 [ ] 1 [ ] 2 [ ] 3
3 PRODUCT SUMMARY

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
11
NDX VALVE CONTROLLER
Warnings plate
Warnings plate includes explosion hazard warnings.
Fig. 7 Warnings plate
3 PRODUCT SUMMARY
GENERAL INFO

12
NDX VALVE CONTROLLER
3.6 EXPLODED VIEW
47
37
140
49 1 4
191 201
207 220
15 25
376
372
374 87 378
379 373
47 42
130
100
32
375
3
Fig. 8 NDX1510_ exploded view
1
3
4
15
25
30
191
37
47
87
100 130
140
191
201
207
220
221
372
373
374
375
376
378
379
94
Fig. 9 _NDX_511_exploded_view
3 PRODUCT SUMMARY

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
13
NDX VALVE CONTROLLER
47
37
140
1
30
130
191
201
221
207 220 15
25
27
100
4
3
32
379
373
378
372
94
374
87
375
376
375
Fig. 10 NDX_512_ exploded view
Linear Magnet Holder Assembly1(VD48-55)
Fig. 11
1The magnet holder assembly model depends on the
actuator type. It will be included in the bracket setup.
It will not be included in bareshaft NDX.
NDX part list
Pos Description 1510 _511 _512 Tools
1 Housing assem. x x x
3 Grounding screw, ext. x x x SLOT8
4 Grounding screw, int. x x x PH2
15 Cover assem. main * x x x
25 Cover screw x x - PH2
25 Cover screw - - x HEX6
27 Lock washer - - x
30 O-ring x x x
32 Prestage bottom filter assem. * x - -
32 O-ring - x x
37 Cover assem. relay * x x x
42 Cover assem. prestage * x - -
47 Countersunk screw x x x TX20
49 Prestage channel filling piece x - -
87 Exhaust cover x x x
94 Check valve, double act only * - x x
100 Prestage unit assem. * x x x
130 Pan head screw x x x TX20
140 Relay valve assem. * x x x
191 Electronics module * x x x
201 Countersunk screw x - - TX20**
201 Socket head screw - x x HEX3***
207 Local user interface * x x x
220 Round head screw x x x TX7
221 Pan head screw - x x TX8
372 Gauge block (x) (x) (x)
373 Gasket (x) (x) (x)
374 Socket head screw (x) (x) (x) HEX5
375 Pressure gauge, supply (x) (x) (x)
376 Pressure gauge, actuator (x) (x) (x)
378 Gauge block frame (x) (x) (x)
379 Cross rec head screw (x) (x) (x) PH2
* Sparepart, see details in Maintenance chapter.
** 60 mm / 2,5 inch reach required.
*** 75 mm / 3 inch reach required.
*Sparepart. See detailed instructions in Maintenance chapter.
3 PRODUCT SUMMARY
GENERAL INFO

14
NDX VALVE CONTROLLER
3.7 TOOLS
Following tools are needed for the product installation and maintenance:
Fig. 12
NOTE
Other tools are dependent on the actuator
which the NDX is installed upon.
PH2 TX 7
TX 8
TX 10
TX 20
3 mm
8 mm 3 mm 5 mm
6 mm
10 mm
13 mm and 21/22 mm with linear actuators.
8 mm and 24 mm with rotary actuators.
3 PRODUCT SUMMARY

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
15
NDX VALVE CONTROLLER
4.1 General
Loop powered 4-20 mA, no external power supply required.
Suitable for linear and rotary valves.
Actuator connections in accordance with VDI/VDE 3845 and IEC
60534-6 standards.
Action: Single acting or double acting, direct or reverse
Travel range: Linear: 5-120 mm / 0.2-4.7 in
Rotary: 30-160 degrees
4.2 Environmental Inuence
Standard
temperature range: -40° – +85 °C / -40° – +185 °F
Inuence of temperature
on valve position: Rotary: 0.5 % / 10 °C
Linear: 0.1 mm / 10 °C
LUI usable range: -30° - +60 °C
Temperature cycling/
Dry heat: Acc. to IEC 60068-2-2
Humidity Limits: Acc. to IEC 61514-2
Magnetic Fields: Negligible at 30 A/m
Acc. to IEC 61000-4-8
Vibration:
Tested acc. to ANSI/ISA-75.13.01-2013
4.3 Electromagnetic Protection
Emission acc. to IEC 61000-6-4
Immunity acc. to EN 61000-6-2
4.4 Enclosure
Housing Material: Epoxy coated anodized aluminum
alloy, EN1706 AC - AlSi12 (b)
Cover Material: Compact: Polycarbonate
Standard: Polycarbonate
Explosion Proof: same as housing
and glass window
Magnet holder: Glass ber reinforced polyamide,
PA66GF20
Protection class: IP66, NEMA 4X
IP67 optional for storage and
transport
Pneumatic ports:
Supply air: 1/4 NPT, G1/4 with
additional block
Actuator: 1/4 NPT, G1/4 with
additional block
Exhausts: 2 or 3 pcs. 3/8 NPT, G3/8 with
additional block
Cable entry: 2 pcs. 1/2 NPT (M20 with adapter)
Weight: 2.0 kg / 4.4 lbs (Compact)
2.8 kg / 6.2 lbs (Standard)
3.8 kg / 8.4 lbs (Explosion proof)
Gauge block 0.9 kg / 2.0 lbs
4.5 Pneumatics
Supply Pressure: 1.4–8 bar / 20–116 psi (single
acting)
2.0–8 bar / 29–116 psi
(double acting)
Pressure range up to 10 bar with
limited life time
Supply Media: Air, nitrogen, sweet natural gas
Eect of supply pressure
on valve position: < 0.1 % at 10% dierence in inlet
pressure
Air quality: Acc. to ISO 8573-1
Solid particles: Class 7 (40 m ltration)
Humidity: Class 1 (at minimum dew point 10 °C/
18 °F below minimum temperature
is required)
Oil class: 3 (or < 1 ppm)
Air Capacity1: 80 Nm3/h / 47.1 scfm
Air Consumption in
steady state position: 0.1 Nm/h / 0.06 scfm
1rated at 4 bar / 60 PSI supply pressure
If natural gas is collected from the exhaust, make sure there
are no back-pressure in the exhaust side. This applies also to
so called re-breather application where the exhaust is piped to
the actuator spring side.
4.6 Electronics
HART Protocol rev. 6 / 7
Supply power: Loop powered, 4–20 mA
Min. signal: 3.8 mA
Min. control signal: 3.95 mA
Current max: 120 mA
Load voltage: 9.7 VDC at 20 mA
9.0 VDC at 4 mA
Impedance at 20mA: 485 
Maximum Voltage: 30 VDC
Rev. Polarity protection: -30 VDC
Over current protection: active over 35 mA
Wire size: 0.5-2.5 mm (14-20 AWG)
Performance with moderate constant-load actuators
Dead band: ≤ 0.2 %
Hysteresis: < 0.5 %
Linearity error: < 0.5 %
Repeatability: < 0.2 %
Position transmitter (optional)
Output signal: 4–20mA(galvanicisolation;600VDC)
Supply Voltage: 12–30 VDC
Linearity: < 0.05 % FS
Temperature eect: < 0.35 % FS
Failsafe output: 3.5 mA or 22.5mA (acc. to NE 43)
Maximum External load: 690 for I.S.
4 TECHNICAL DESCRIPTION
SPECS

16
NDX VALVE CONTROLLER
Digital output (optional)
Output signal: NAMUR
<1.0mA = state ’0’,
>2.2mA = state ’1’
These can be inverted by
conguration parameter
Supply voltage: 5…16VDC
4.7 Approvals
Approval EC Type examination Electrical values Temperature ranges
II 1 G Ex ia IIC T6...T4 Ga
II 1 D Ex ia IIIC T85 °C...T115 °C Da
EESF 18 ATEX 014X
EN 60079-0/A11:2013 /
IEC 60079-0:2017
EN 60079-11:2012
Input: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1 W, Ci ≤ 22 nF, Li ≤ 100 H.
Output: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1 W, Ci ≤ 22 nF, Li ≤ 100 H,
external load resistance 0–690 
Digital output: Ui ≤ 16 V, Ii ≤ 25 mA, Pi ≤ 100 mW, Ci ≤ 22 nF, Li
≤ 100 H
T4: -40 °C ... +80 °C;
T5: -40 °C ... +65 °C;
T6: -40 °C ... +50 °C
II 2 G Ex ib IIC T6...T4 Gb
II 2 D Ex ib IIIC T85 °C...T115 °C Db
II 3 G Ex nA IIC T6...T4 Gc
II 3 G Ex ic IIC T6...T4 Gc
II 3 D Ex ic IIIC T85 °C...T115 °C Dc
EESF 18 ATEX 015X
EN 60079-0/A11:2013 /
IEC 60079-0:2017
EN 60079-11:2012
EN 60079-15:2010
Input: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1 W, Ci ≤ 22 nF, Li ≤ 100 H.
Output: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1 W, Ci ≤ 22 nF, Li ≤ 100 H,
external load resistance 0–690 
Digital output: Ui ≤ 16 V, Ii ≤ 25 mA, Pi ≤ 100 mW, Ci ≤ 22 nF, Li
≤ 100 H
T4: -40 °C ... +85 °C;
T5: -40 °C ... +65 °C;
T6: -40 °C ... +50 °C
Ex ia IIC T6...T4 Ga
Ex ia IIIC T85 °C...T115 °C Da
IECEx EESF 18.0007X
IEC 60079-0:2017
IEC 60079-11: 2011
Input: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1 W, Ci ≤ 22 nF, Li ≤ 100 H.
Output: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1 W, Ci ≤ 22 nF, Li ≤ 100 H,
external load resistance 0–690 
Digital output: Ui ≤ 16 V, Ii ≤ 25 mA, Pi ≤ 100 mW, Ci ≤ 22 nF, Li
≤ 100 H
T4: -40 °C ... +80 °C;
T5: -40 °C ... +65 °C;
T6: -40 °C ... +50 °C
Ex ib IIC T6...T4 Gb
Ex ib IIIC T85 °C...T115 °C Db
Ex nA IIC T6...T4 Gc
Ex ic IIC T6...T4 Gc
Ex ic IIIC T85 °C...T115 °C Dc
IECEx EESF 18.0008X
IEC 60079-0:2017
IEC 60079-11: 2011
IEC 60079-15:2010
Input: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1 W, Ci ≤ 22 nF, Li ≤ 100 H.
Output: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1 W, Ci ≤ 22 nF, Li ≤ 100 H,
external load resistance 0–690 
Digital output: Ui ≤ 16 V, Ii ≤ 25 mA, Pi ≤ 100 mW, Ci ≤ 22 nF, Li
≤ 100 H
T4: -40 °C ... +85 °C;
T5: -40 °C ... +65 °C;
T6: -40 °C ... +50 °C
II 2GD Ex db IIC T6...T4 Gb
Ex tb IIIC T85 °C...T113 °C Db
Sira 17ATEX1283X
EN 60079-0: 2012
(+A11:2013)
EN 60079-1: 2014
EN 60079-31:2014
Input: 4-20 mA, Ui ≤ 30 V
Output: 4-20 mA, Ui ≤ 30 V
T4: -40 °C ...+85 °C;
T5: ≤+72 °C;
T6: ≤+57 °C
Ex db IIC T6...T4 Gb
Ex tb IIIC T85 °C...T113 °C Db
IECEx SIR 17.0069X
IEC 60079-0 : 2011
IEC 60079-1 : 2014-06
IEC 60079-31 : 2013
Input: 4-20 mA, Ui ≤ 30 V
Output: 4-20 mA, Ui ≤ 30 V
Approval CSA certicate number Electrical values Temperature ranges
Class I, Division 1, Groups A, B, C, and D; T4/T5/T6
Ex ia IIC T4/T5/T6 Ga
Class I, Zone 0 AEx ia IIC T4/T5/T6 Ga
Class I, Division 2, Groups A, B, C, and D; T4/T5/T6
Ex ic IIC T4/T5/T6 Gc
Class I, Zone 2 AEx ic IIC T4/T5/T6 Gc
70030683
CSA C22.2 No. 0-M91
CSA C22.2 No. 60079-0:15
CSA C22.2 No. 60079-11:14
UL 60079-0:13
UL 60079-11:13
CAN/CSA 61010-1-12
ANSI/UL 61010-1-2012
CSA C22.2 No. 213-17/
UL 121201
CAN/CSA-C22.2 No. 60079-
15:16
UL 60079-15:13
Input: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1.0 W, Ci ≤
22 nF, Li ≤ 100 H
PT loop: Ui ≤ 28 V, Ii ≤ 120 mA, Pi ≤ 1.0 W, Ci ≤
22 nF, Li ≤ 100 H
DO loop: Ui ≤ 16 V, Ii ≤ 25 mA, Pi ≤ 100 mW,
Ci ≤ 22 nF, Li ≤ 100 H
For NDX_510_
T4: -40 °C ...+70 °C
T5: -40 °C ...+65 °C
T6: -40 °C ...+50 °C
For NDX_512_
T4: -40 °C ...+80 °C
T5: -40 °C ...+65 °C
T6: -40 °C ...+50 °C
Class I, Division 2, Groups A, B, C, and D; T4/T5/T6
Ex nA IIC T4/T5/T6 Gc
Class I, Zone 2 AEx nA IIC T4/T5/T6 Gc
Input: Ui ≤ 28 V
PT loop: Ui ≤ 28 V
DO loop: Ui ≤ 16 V
NOTE
See latest up-to-date information of
approvals on metso.com/ndx
4 TECHNICAL DESCRIPTION

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
17
NDX VALVE CONTROLLER
The valve controller is a sophisticated instrument and it shall
be handled with care. Products must be stored in a clean,
dry environment. Device is delivered in IP67 packaging for
storage and transportation.
• Check the controller for any damage that may have
occurred during transportation.
• Store the uninstalled controller preferably indoors,
keep it away from rain and dust.
• Do not unpack the device until installing it.
• Do not drop or knock the controller.
• Keep the ow ports and cable glands plugged until
installing.
• Follow instructions elsewhere in this manual.
5 TRANSPORTATION AND STORAGE
LOGISTICS

18
NDX VALVE CONTROLLER
Most valve controller parts can be recycled if sorted accord-
ing to material. A valve controller may also be returned to
manufacturer for recycling and disposal.
6 RECYCLING AND DISPOSAL

GENERAL INFOSPECSMOUNTINGSTART UPOPERATIONMAINTENANCEDIMENSIONSHOW TO ORDER LOGISTICS
19
NDX VALVE CONTROLLER
7.1 Installation to Neles Globe
NOTE
The enclosure of NDX meets the IP66 pro-
tection class according to EN 60529. Cable
entry needs to be plugged according to IP66
and it is not allowed to mount NDX in a po-
sition where the cable entry is pointing up-
wards. Based on good mounting practice, the
recommended mounting position is electrical
connections placed downwards. This recom-
mendation is shown in our mounting position
coding for control valves.
If these requirements are not fullled, and the
cable gland is leaking and the leakage is dam-
aging NDX, our warranty is not valid.
MODEL VD25
MODEL VD29
MODEL VD37
MODEL VD48 AND 55
Fig. 13
7.1.1 Installation to Neles Globe (VD29)
1. Mount the magnet holder with magnet to the
actuator coupler, tighten the xing screw.
Fig. 14
2. Mount the bracket to the actuator, leaving the screws
loose.
Fig. 15
5 mm
6 mm
13 mm or 21/22 mm
Depends on
actuator size
NOTE
Similar mounting steps apply also with other
Neles Globe actuator sizes.
NOTE
The bracket can be rotated 180° or ipped
front/backside. If the bracket is ipped, the
magnet needs to be ipped correspondingly.
If needed, check the magnet installation toler-
ances from the picture in section 7.3“Installa-
tion to any linear actuator”
3. Attach the magnet alignment tool to the magnet.
Adjust the position of the bracket so that the
magnet slides smoothly in the magnet alignment
tool groove and tighten the magnet alignment tool
xing bolts.
7 LINEAR MOUNTING
MOUNTING

20
NDX VALVE CONTROLLER
Fig. 16
4. Tighten the bracket screws from step 2. Remove the
magnet alignment tool.
5. Mount the NDX to the bracket.
Fig. 17
Bracket Orientation Table – Neles Globe
Neles Actuator Size Stroke (mm) Bracket Model / Orientation
VD
#25 20
#29 40
#37 20, 40
#48 40, 50, 60
#55 80, 90
7 LINEAR MOUNTING