a114_00General brochure.pdf

(939 KB) Pobierz
Electric Actuators
ST RANGE
ST RANGE
A114/00
802713671.044.png 802713671.045.png 802713671.046.png 802713671.047.png
TAKE ADVANTAGE OF
range
rang
YOUR INDUSTRIAL APPLICATION
DESERVES
THE RELIABILITY
THE USER FRIENDLINESS
OF
OF
combined
TRADITIONAL
21st CENTURY
with
ACTUATORS
TECHNOLOGY
2
AN ISO 9001 CERTIFIED COMPANY
802713671.001.png 802713671.002.png 802713671.003.png 802713671.004.png 802713671.005.png 802713671.006.png 802713671.007.png
THE NEW ST RANGE
More than 50 YEARS in the service of PROCESS
INDUSTRIES have taught us how severe this
environment can be and how important the
commissioning phase is.
In designing the new ST Range BERNARD has drawn
on their half century experience to offer you the best
combination between :
The DEPENDABILITY
of electromechanical
components like :
3
• Asynchronous motors
• Spring loaded torque sensors
The comfort & flexibility of USER-ORIENTED
PROGRAMMABLE
ELECTRONIC
CONTROLS .
The tremendous increase in interactive
COMMUNICATIONS offered by INDUSTRIAL
FIELDBUSES .
802713671.008.png 802713671.009.png 802713671.010.png 802713671.011.png 802713671.012.png 802713671.013.png 802713671.014.png 802713671.015.png 802713671.016.png
BERNARD ST RANGE
range
rang
ABLE
PERFORMANCE
DEPEND ABLE
DEPEND
PERFORMANCE
For extra power
ASYNCHRONOUS MOTORS
1
•
Offering the highest ratio of starting torque vs. nominal
torque.
•
Designed for repetitive starts under full load at 360
starts/hour in ON-OFF service and up to 1200 starts/hour in
MODULATING class III service.
For trouble free operation
TRANSMISSION GEARS
2
•
Heavy duty oversized transmission without any clutch type
device (except ST6). Full motor power drives the valve
without any interruption in the power drive.
For accurate information
POSITION & TORQUE SENSORS
3 4
4
9
•
Measure directly and proportionnally :
- valve travel
- torque output
8
•
The valve travel is measured through a mechanical link with
the output shaft.
7
•
The torque is measured by a dynamometric balance set at
actuator output. In this way the control system is informed
instantaneously of the actual torque transmitted to the valve.
There is no interpretation of second hand data.
1 0
•
In the INTELLI+ version, both information are converted by
use of contactless ABSOLUTE ENCODERS . In this way,
even in case of a power shortage there is no risk of loosing
the position. Therefore there is no need for a battery backup.
For the protection of your investment
6
Handwheel
ENCLOSURES
5
7
•
Enclosures are watertight to IP68 & NEMA 6 which means
they are able to withstand to the pressure of 5 m for 72
hours.
Logic board
8
Positioner board
•
For explosive atmospheres, our actuators have received the
qualification for the highest protection level :
- CENELEC EEx d II CT 4 to 6
- NEMA 7
9
Fieldbus
1 0
interactive communication
•
For the protection of the electronics, the control
compartment of the actuator is completely isolated from the
wiring compartment and local control is performed without
intrusion into the control chamber.
802713671.017.png 802713671.018.png 802713671.019.png 802713671.020.png 802713671.021.png 802713671.022.png 802713671.023.png 802713671.024.png 802713671.025.png 802713671.026.png 802713671.027.png 802713671.028.png 802713671.029.png
OFFERS BOTH
USER FRIENDLY
SER
USER FRIENDL
SER VICE
VICE
For operator convenience
MANUAL OPERATION
6
1
Motor
•
The DIFFERENTIAL GEARING of the actuator lets you
move the handwheel without any clutch action (except for
very low torques as ST6). The handwheel is totally
independant from the motor and the motor has always the
priority over the handwheel.
2
Main drive
3
Torque sensor
•
The choice of reduction for the handwheel is coherent
with the torques : from 1:1 for low torques to 2:1 and
more for higher torques.
6
4
Position sensor
5
Enclosures
For the comfort of all :
Planers & Users
1
INTEGRAL+ LOGIC
7
2
•
It allows a choice among a wide variety of operating modes
(including ESD). In addition the choice of modes is
possible at any time even after initial commissioning.
3
5
5
For performant process control
4
GAM POSITIONER
8
•
It presents all the advantages of point of control feedback
and ease of commissioning.
For wiring simplicity
BUS SYSTEMS
9
•
It offers the ideal mean of communication allowing a cost
savings on installation and takes full advantage of the very
high level of information offered by INTELLI+ versions.
and
For up to date communicability, safety and full
diagnostics capabilities
INTELLI+ VERSION
1 0
•
will offer :
- non intrusive settings
- interactive communication
- intelligent monitoring of your process
- local & remote diagnostics capabilities
802713671.030.png 802713671.031.png 802713671.032.png 802713671.033.png 802713671.034.png 802713671.035.png 802713671.036.png 802713671.037.png 802713671.038.png 802713671.039.png 802713671.040.png 802713671.041.png 802713671.042.png 802713671.043.png

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin