Group 42 Long Stroke Linear Actuators
Beck Control Electronics
Group 42 Beck drives offer the benefit of a total control package,
utilizing reliable electronics to match the speed and precision of your
process instrumentation.
Standard Group 42 modulating drives (control option 9) are equipped
with Beck’s Digital Control Module (DCM-2), which controls the position
of the drive according to the input signal it receives. A position feedback
signal is delivered to the DCM from the position sensing device (Beck’s
Contactless Position Sensor (CPS-4)). This signal is continuously
compared to the demand input signal. A change in the input signal
results in an immediate repositioning of the drive to balance the two
signals.
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Digital Control Module (DCM-2)
(used on model 42-109) |
Beck’s DCM-2 provides modulating
control in response to standard
control system signals. Notable
features include:
- Convenient user interface for
calibration and drive status.
- HART® compatibility.
- Compatible with common asset
management systems.
- Receives control signals
directly, eliminating the need
for contact protection devices,
relays, switches and reversing
starters.
- Designed to operate
continuously at temperatures
from -40º F to 185º F (-40° to
85° C).
- Initiates shaft movement in steps ranging from 0.10% to 0.25%
of span, depending on the timing of the gear train.
Download the Brochure for additional details
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Contactless Position Sensor (CPS-4)
(used on model 42-109) |
Beck’s patented CPS technology has
been providing reliable control
feedback with infinite resolution in
our products for many years.
- Utilizes a unique ferrite
magnetic design with no
contacting or wiping surfaces
to wear or intermittently lose
contact.
- The ferrite rotor is driven
directly by the output shaft
through anti-backlash gearing.
- A 4–20 mA position feedback signal is available for remote
indication.
The 42-107 electronics package
has a 4-20 mA modulating control
board with position feedback.
The 42-107 has time-proven
analog electronics on-board for
simple, reliable, no-frills
positioning and feedback of the
drive.
A stall alarm contact and two
auxiliary limit switches for position
indication are integral features for the model 42-107.
The 42-105 is equipped with similar analog electronics to the 42-107,
but requires 120 VAC pulsed control instead of 4-20 mA. It allows direct
AC control of the drive's motor for either PAT type modulation or simple
multi-position control. The 42-105 provides a 4-20 mA position feedback
and is equipped with two auxiliary limit switches for position indication.
The 42-103 is intended for simple open/close operation. Direct AC to the
motor will drive the unit to it fully open or fully closed position. Limit
switches at each end of travel will stop the drive and may also be used
for external signaling.
Factory Calibration
All Beck drives are set-up and calibrated to the customer specification. No electrical adjustments are required before installation.
Additional Features available on select Beck Control Electronics
- Pre-Determined Action Upon Loss of Input Signal
- Stall Protection
- Split Signal Operation for Control of Multiple Drives
- Temperature Sensing with alarm
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