LINK Systems OmniLink 5000 - Manual (Page 15)

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Section 2.6 Input Status
In the Die Protection menu display, the column on the right labeled "Status" indicates the present
status of each individual input. If the die condition which the input is monitoring is satisfactory
(sensor is seeing the proper inputs within the desired timing restrictions) then the message for the
input will be "OK". If the sensor input is not satisfactory, the message "ERROR" will be displayed
for the input. In the event of an internal fault on the die protection module itself, all the input
channels will display the "ERROR" message. If an input channel displays the "ERROR" message,
it will be necessary for the operator to position the cursor to the channel that is in error. A status
message explaining the error will appear at the bottom of the screen. Figure 2.1 indicates that Die
Protection Channel 03 has an error condition, while the other channels displayed are all "OK".
If the Die Protection function has been bypassed, all the input channels will display the message
"BYPASS" (see the topic “BYPASS ON/OFF key” in Section 2 for more information).
Section 2.7 Input State
The column labeled "State" on the Die Protection Menu allows the operator to view the present logic
state of each input, i.e., whether the input is HIGH or being held LOW by its external wiring and/or
sensor. Using this information the operator can see what the Die Protection Module views the
voltage level of its inputs to be without using a voltmeter to actually measure each input. Note that
all inputs are active LOW and that all unconnected inputs will automatically read HIGH (see
“Wiring” in Section 4). Since the update rate of the display may not be fast enough to catch some
input changes that occur, a momentary change in the state of an input may not be seen on the
display. In a case such as this it will be necessary for the operator to use the Capture Input feature
of the View Channel screen to see the change on that input (see the topic “Input Capture Capability”
in Section 2).
(Note: If a communication failure occurs between the Operator Terminal and the Module, all input
states will be displayed as LOW regardless of their actual states).
Section 2.8 RESET ERRORS key
The RESET ERRORS softkey is used to unlatch errors that have been discovered by the Die
Protection Module. Any error which occurs on a die protection input channel causes a stop signal
to occur and the error to be latched. To resume using the machine the operator must first correct the
condition which caused the error to occur (i.e. out of material, part did not eject from die, etc.).
To perform a die protection reset, the user must first obtain access control. Access control is
described in Section 2.3. If the user obtains access control by using the password system, the user
must be configured to have access to reset die protection faults. Once the machine is again ready
to run, the RESET ERRORS softkey can be pressed to unlatch the error in the Module and return
all inputs to a status of "OK".