Agilent Technologies U1840A Medalist sj5000 Hardware Manual page 55

Powering Up to Restore From an Emergency Stop
Machine Cycle
Agilent U1840A Medalist sj5000 Hardware Manual
To power up the sj5000 to restore from an emergency stop,
perform the following:
1
Ensure that the front access door is fully closed.
2
Pull out all the E-Stop buttons.
Press the ES RESET switch.
3
If the sj5000 software is running, also click the Okay button in
4
the E-Stop alarm window.
The sequence of events during a board load—inspect—eject
cycle is as follows:
• The upstream machine provides a 'Board Available' signal to
the sj5000 via the SMEMA interface.
• When ready to accept a board, the sj5000 gives the upstream
machine a 'Machine Not Busy' signal through SMEMA.
• If a hardware barcode reader is used, it is normally triggered
at the same time as the 'Machine Not Busy' signal. It is
possible to configure the system to trigger the reader first
and await a good read before sending 'Machine Not Busy' —
this would typically be used when integrating with a factory
management system.
• When both 'Board Available' and 'Machine Not Busy' are
true, the upstream machine passes a board to the sj5000.
• Once the board is inside (that is, seen by the Entry sensor)
the sj5000 disables the 'Machine Not Busy' signal to the
upstream machine.
• The board stops are activated once the conveyor starts to
move (as a result of a board entering the machine).
• When the board is detected by the In-Position sensor.
• The conveyor slows down and halts such that the board is
resting against the board stops.
• The board is clamped in position.
• When the clamps are successfully raised, the Programmable
Logic Controller (PLC) gives a board present signal to the PC.
• The board is inspected.
• When inspection is complete, the PC informs the PLC that
the board has passed or failed inspection.
Starting Up the Medalist sj5000
4
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