Beck, R&J ELECTRIC ACTUATORS FOR INDUSTRIAL PROCESSCONTROL 11-1_9 用户手册

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PRODUCT DESCRIPTION
 
Beck control drives are engineered for precise, 
reliable operation of dampers, quarter-turn valves 
and  fluid drives.  The cool, stable operation of 
Beck’s control motors coupled with the powerful 
gear train provide the tight, responsive control 
required by modern control loops to optimize output 
while keeping operating costs low.
 
The unique all spur gear construction used in 
the Beck control drive is designed for long term 
durability.  Gear modules and motors can be 
interchanged in the field to alter the torque and 
timing as needed if the application requirements 
change.  Mechanical stops in the gear train prevent 
overtravel.
 
An easy to turn, spoke-free Handwheel is 
incorporated into the design to allow manual 
operation during installation or power outages.  
The Handwheel can be used to move dampers and 
valves to any position smoothly and easily under 
full load conditions.
 
Dampers and valves may also be operated 
at their individual locations with built-in electric 
Handswitches.
 
The heavy-duty crank arm (if applicable) of 
these control drives can be field-adjusted to travel 
anywhere in the 360° range.  The forged rod end 
fitting may be field-adjusted to any point in the cast 
slot of the crank arm.  Special linkage arrangements 
allow total application versatility for connection 
directly on or remote from the driven load.
 
Beck’s Digital Control Module (DCM-2) 
provides precise drive control in response to a 
modulating Demand input signal.  It also provides 
intelligent calibration, easy drive setup changes, 
and diagnostic information.  A local interface 
provides quick pushbutton setup and diagnostics 
without the need for a handheld or remote device.  
A HART
®
 communications interface allows 
remote access of all features and information.  A 
serial interface also allows for drive configuration 
changes, drive information reporting and to assist 
in troubleshooting.
 
Beck’s CPS-2 Contactless Position Sensor 
provides accurate position measurement in 
demanding environmental conditions, with 
no contacting or wiping surfaces to wear or 
intermittently lose contact.  The CPS-2 provides 
infinite resolution with linearity error of less than 
±1% of span over full control drive travel.
 
Beck electronic control drives are designed 
with individual weatherproof enclosures to protect 
the main components.  The cutaway illustration 
below is intended to provide the user with a basic 
orientation to the product.
D
IGITAL
 C
ONTROL
 M
ODULE
(DCM-2)
P
OSITION
 S
ENSING
 
D
EVICE
O
VER
-
TRAVEL
 
L
IMIT
 
AND
 A
UXILIARY
 
S
WITCHES
W
IRING
 T
ERMINAL
 B
LOCK
C
RANK
 A
RM
 / L
INKAGE
G
EAR
 T
RAIN
 
AND
M
OTOR
 H
OUSINGS