The Helman Group 1769 WEIGH SCALE MODULE HM1525 User Manual
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Chapter
1
Overview
You have just purchased the most advanced load monitoring solution
available. HELM INSTRUMENT COMPANY, INC. manufactures a
complete line of load monitoring control solutions for use on metal
stamping, forging, compaction and assembly presses; cold forming, cold
heating, injection molding and die cast machines.
Standard or custom transducers and load cells are available for in-die
monitoring of transfer or progressive tooling.
At HELM, quality is inherent not only in the design of our products but in
the attitudes of our employees as well. We’re working together to give
you the best. After all, that’s what our business is all about - providing
innovative instrumentation to help make your manufacturing process
more productive and your operation more effective.
The Helm Weigh Scale combines machine and tooling monitoring with
programmable limit switch function. User programmable high and low
limits protect the machine and tooling to ensure part quality.
Critical setup information can be stored and uploaded as part of a die
recipe program. An optional resolver input module is used to compare
machine/press tonnage to crank angle for real time signature analysis.
Components
The Helm Weigh Scale module is attached to the controller or to an
adjacent I/O module on the din rail. The system is comprised of two
parts; the input module and two Helm Strain gage based sensors.
Strain Gain
Transducer
Operation
The primary part of the load monitoring system centers around the
measurement. The basic function of the Helm Strain Gain sensor is to
detect the amount of deflection imposed on the press or die as parts are
being formed. All Strain Gain sensors are matched to within 1% and
therefore can be replaced without recalibration of the machine.
The Helm Strain Gain sensors can be mounted to strategic high stress
areas of the machine frame or strategically located in tooling or applied
to stop blocks. Signals from these sensors are routed to the Weigh
Scale module for processing. The Helm Strain Gage is capable of
measuring either a tension or compression
signal.
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