Metso's Neles ND9000 is designed to operate on every control valve
actuator and in all industry areas. ND9000 is a smart, reliable and
future-proof positioner with life-time support. Its superior design
features and unique diagnostics provide a solid foundation for
performance optimization and proactive maintenance.
Features
- Benchmark control performance on rotary and linear valves
- Superior diagnostics and data storage capabilities
- Local and remote configuration
- Easy interpretation of diagnostics data with Metso FieldCare
software
- Efficient mounting program for all types of actuators
- Low power consumption
- Available for HART, PROFIBUS-PA and FOUNDATION Fieldbus networks
- Reliable and robust design
- Device self diagnostics
- On-line, performance and communication diagnostics
- Hot swap support: possibility to install also on valves that are in
process with 1-point calibration feature
- SIL 2 approved device
Benefits
- Minimize variability
- Open solution based on FDT technology
- Supports Electronic Device Description Language (EDDL) technology
- Total cost of ownership
- Easy to use
- Open solution
- Product reliability
- Easy installation and configuration □ Same device can be used for
linear and rotary valves, double and single-acting actuators □
Simple fast calibration and configuration □ using Local User
Interface (LUI) □ using FieldCare software in a remote location □
using Distributed Control System (DCS) asset management tools □
Extensive selection of mounting kits for 3rd party actuators □ Low
power comsumption enables 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; ND9000 is no exception. This open architecture
allows the ND9000 to be integrated with other field devices to give
an unprecedented level of controllability. □ FDT and EDD based
multi-vendor support configuration □ Support files for ND9000 are
available from our internet pages, at www.metso.com/valves - choose
the link: download cente
- Neles ND9000 in fieldbus networks □ Approved interoperability □
Host interoperability ensured □ FOUNDATION fieldbus ITK version
6.1.2 certified □ Profibus PA profile version 3.0 PNO certified □
Easy to upgrade; by replacing the HART communication board with a
fieldbus communication board □ Excellent maintainability with
firmware download feature □ Advanced communication diagnostics □
Digital communication via the fieldbus includes not only the set
point, but also the position feedback signal from the position
sensor. No special supplementary modules for analog or digital
position feedback are needed when using the fieldbus valve
controller. □ Back up LAS functionality available in FOUNDATION
fieldbus enviroment □ Input selector and output splitter blocks
available in FOUNDATION fieldbus devices allowing advanced
distributed control □ Standard function blocks enables the freedom
to use the ND9000 intelligent valve controller in either continuous
or onoff control applications □ Open and close information is
directly available via the fieldbus □ Open and close detection is
based on either position measurement (soft limit switch) or
mechanical limit switch information ND9000 mounting on actuators
and valves □ Mounted on single and double acting actuators □ Both
rotary and linear valves □ Ability to attach options to electronics
and mechanics later □ 1-point calibration feature enables mounting
without disturbing the process Product reliability □ Designed to
operate in harsh environmental conditions □ Rugged modular design □
Excellent temperature characteristics □ Vibration and impact
tolerant □ IP66 enclosure □ Stainless steel enclosure (ND9300 and
ND9400) □ Protected against humidity □ Maintenance free operation □
Resistant to dirty air □ Wear resistant and sealed components □
Contactless position measurement Predictive maintenance □ Easy
access to collected data with Metso FieldCare software □ Unique
Online Valve Signature to detect valve friction even more
accurately. □ Performance view with report, which gives guidelines
for recommended actions. □ Logical trend and histogram collection □
Information collected during process uptime □ Extensive set of
off-line tests with accurate key figure calculations □ Fast
notifications with on-line alarms □ Condition monitoring tool
available □ Real time monitoring of valve control parameters
TECHNICAL DESCRIPTION The ND9000 is a 4–20 mA or fieldbus powered
microcontrollerbased intelligent valve controller. The device
contains a Local User Interface (LUI) enabling local configuration.
A PC with FieldCare software can be connected to the ND9000 itself
or to the control loop. The powerful 32-bit microcontroller
controls the valve position. The measurements include: □ Input
signal □ Valve position with contactless sensor □ Actuator
pressures, 2 independent measurements □ Supply pressure □ Spool
valve position □ Device temperature Advanced self-diagnostics
guarantees that all measurements operate correctly. After
connections of electric signal and pneumatic supply, the micro
controller (μC) reads the input signal, position sensor (α),
pressure sensors (Ps, P1, P2) and spool position sensor (SPS). A
difference between input signal and position sensor (α) measurement
is detected by control algorithm inside the μC. The μC calculates a
new value for prestage (PR) coil current based on the information
from the input signal and from the sensors. The changed current to
the PR changes the pilot pressure to the spool valve. Reduced pilot
pressure moves the spool and the actuator pressures change
accordingly. The spool opens the flow to the driving side of the
double diaphragm actuator and opens the flow out from the other
side of the actuator. The inc
- Prevention and prediction
| Brand | Mesto |
| Type | ND9103HN |
| Color | silver |
