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Messages Displayed When a Sensor Signals a Fault
Fault messages for green sensors
"Green sensor missed"
Explanation:
A green or green quick check sensor did not turn on during the ready
signal and it did not come on late (within 50 milliseconds after the ready
signal). No stroke angle is displayed with this error message since the
sensor never turned on.
Remedy:
Check for the malfunction that the sensor was supposed to detect (part
ejection problem, misfeed, transfer problem, etc.). If that is not the cause,
check to be sure that the ready signal is set properly for this sensor. Check
that a sensor is actually plugged into this input on the remote connection
box. Remember, if no sensor is connected to a sensor input, that input
must be set to "unused." Check connections between sensors and
controller.
"Green sensor actuated late"
Explanation:
A green or green quick check turned on late after its ready signal was
completed. That is, it turned on within 50 milliseconds after the end of the
ready signal. If a green or green quick check sensor does not come on
during its ready signal, SmartPAC 2 continues to look for the sensor
signal. If it saw the sensor come on within 50 milliseconds after the ready
signal, the angle where the sensor turned on is shown in the message.
Remedy:
Check for the malfunction the sensor was supposed to detect (like a part
ejection problem or misfeed, etc.). Check that the ready signal is set
properly. You may just have to adjust the ready signal.
"Green sensor failure"
Explanation:
For a green or green constant sensor, the sensor has stayed on from the
end of one ready signal to the beginning of the next ready signal for the
next stroke. No stroke angle is shown with this fault.
Remedy:
Check for a shorted sensor. Make sure the ready signal has been set
correctly. Check to see if a press or equipment malfunction is causing the
sensor to stay on—for instance, a part wedged against a sensor or a
pinched wire.
Page 414
SmartPAC 2 with WPC Integration
Chapter 7
SmartPAC 2 Fault Messages
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