Doc #: L-2600-1023 Page 23 Rev. 02
3.3 Die Protection
The System 2600 features 6 built-in die protection channels which are designed for use in monitoring
various material and tool conditions that are important to the correct operation of the process. This is
accomplished by installing appropriate sensors and probes in or near the die and connecting these
sensors to the die protection channel inputs of the operator terminal. The channels are then programmed
through the operator terminal to perform the desired monitoring function for the connected input. In the
event that improper conditions occur, the machine can be stopped, avoiding excessive delay in the
production process or damage to the tooling and/or press.
Either solid state (NPN or PNP) sensors or probes and mechanical sensors may be used to drive the
inputs. This is configurable on a per-channel basis so using a variety of sensors is a valid option. Once
configured, these settings will be automatically recalled with each job.
The System 2600 can be programmed to monitor each individual die protection input in the manner
necessary to ensure that the process is operating in the intended manner. Each channel can be
programmed to function as one of several logic types as described in the following sections.
If the monitor detects a process fault, a stop signal will be sent to the press control. There are two types
of stops than can be assigned to an individual channel - Immediate Stop or Top Stop (See Section 2.1 for
a description of how each of these stops work).
The system has the capability of displaying extensive channel diagnostics. The current state of each of
the channel inputs is displayed. In addition, a numerical and graphical representation of the channel
input’s history is available. The last 64 transitions (a transition is either a change in sensor state from on
to off or from off to on) of the channel input are stored. This information can be displayed numerically
in a table format or graphically.
3.3.1 Die Protection Channel Types
Each die protection channel can be programmed for any one of 11 different die protection types: “Not
Used”, “Static”, “Cyclic”, “Transfer”, “In Position”, “In Position Inhibit”, “1 Part Detector Edge”, “1
Part Detector Pass”, “2 Part Detector Edge”, “2 Part Detector Pass”, and “Part Detect Anywhere”.
Although these names best describe the applications for which they are normally used, their use should
not be limited by their assigned name. For example, if a channel requires the logic of a “1 Part Detector
Pass” and the sensor is not actually detecting a part out, “1 Part Detector Pass” logic should still be used.
Each channel can have its own description. Although the “1 Part Detector Pass” logic is employed, the
assigned description can indicate the precise use of the channel.
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