Red Lion GMSG1 Strain Gage Input Module - Manual

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 STRAIN GAGE MODULE FOR THE GRAPHITE SERIES
 PID CONTROL WITH REDUCED OVERSHOOT
 LOAD CELL, PRESSURE AND TORQUE BRIDGE INPUTS
 SELECTABLE LOW LEVEL INPUTS (20 mV, 33 mV or 200 mV
FULL SCALE)
 SOFTWARE SELECTABLE 5 VDC or 10 VDC BRIDGE
EXCITATION
 DIGITAL TARE (re-zero), BATCH TOTALIZER, AND PEAK/VALLEY
(max/min) RECORDING
 ON DEMAND AUTO-TUNING OF PID SETTINGS
 DC ANALOG OUTPUT
 WINDOWS ® CONFIGURATION SOFTWARE
GENERAL DESCRIPTION
The Model GMSG is a full featured single loop PID controller designed for
use with the Graphite Series. The module accepts low level signals from a
variety of bridge-type transducers, such as load cells, pressure transducers,
torque transducers, etc. An optional second signal input is available, providing
math capabilities between the two input channels (average, differential, etc.).
Each input channel provides a software selectable 5 V or 10 V stable bridge
excitation voltage, capable of driving up to four 350 Ω bridges (combined total
per module). The inputs are selectable for ±20 mV, ±33 mV, or ±200 mV full
scale. With solid state or relay outputs, plus an analog output, the GMSG
module can perform virtually any combination of time-proportioning or linear
control. The discrete outputs may also be assigned to one of seven internal soft
alarms; and the linear output can be assigned to transmit virtually any internal
variable. In addition, digital tare (re-zero), batch totalizer, and peak/valley (max/
min) are provided.
The modules connect and communicate via proprietary USB connection to
the various Graphite host devices. Those devices, equipped with serial ports as
well as Ethernet port(s), allows the system to share data with PCs, PLCs, and
SCADA systems.
Caution should be used when adding modules to Graphite. Some modules,
depending on usage, may consume high levels of power. This may limit the total
number of modules that can be installed on a single Graphite host. Check the
Graphite module and Graphite host data sheets for specific usage and power
requirements.
The GMSG modules are available with relays, or open drain MOSFET
outputs. For applications requiring large loads to be controlled, several DIN rail
mount relays are available.
The modules can operate in On/Off, P, PI, or PID control mode, and use an
on-demand Auto-Tune that establishes the tuning constants. The PID constants
may be fine-tuned through the serial or Ethernet interface. The modules employ
a unique overshoot suppression feature, which allows the quickest response
without excessive overshoot. The modules can also be operated in manual mode,
providing the operator with direct control of the output.
CONFIGURATION
The Graphite Series is configured with Windows ® compatible Crimson ®
software. The software is an easy to use, graphical interface which provides a
means of configuration and commissioning of new systems, as well as routine
module re-calibration.
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Do not use the controller to directly command motors, valves, or other
actuators not equipped with safeguards. To do so can be potentially harmful to
persons or equipment in the event of a fault to the controller.
MODEL GMSG1 – GRAPHITE SERIES STRAIN GAGE MODULE
Bulletin No. GMSG1-A
Drawing No. LP0952
Effective 02/14
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
4.65
(118)
1.25 (32) 2.97 (76)
DIMENSIONS In inches (mm)
CAUTION: Risk of Danger.
Read complete instructions prior to
installationand operation of the unit.
CAUTION: Risk of electric shock.