Operation and Maintenance Manual Rev M(ii) 4/03
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Appendix A – Definitions
Auto Cycle – Machine state where cycles are running.
Auto Purge – A machine function that automatically purges material after a predefined period of time or
during solvent cups procedures.
Calibration Position – The location in the workspace where the X, Y, Z and W locations for the needle(s)
is normalized.
Cycle Stop – Machine state where no action is occurring and the machine is at the standby position.
Depress – Press and hold for the duration of the operation.
Dispense / Spray Path – A continuous motion profile. The valve is on (dispensing / spraying) during the
entire motion profile. Also known as a Path or Motion Sequence.
DMC – Language used to program the motion controller in the workcell.
End Effector – The dispense / spray head assembly. The end effector is moved by the axes.
Function Keys – A set of eight membrain buttons located on the OIT used to select various modes and
functions of the workcell.
Head – Dispensing / spraying valve.
Home Position – The (0, 0, 0, 0) location of the workspace. This position is determined by the location of
the home sensors. It is NOT the same as the Standby Position.
Jog – Moving any combination of axes continuously at a set rate of speed until commanded to stop.
Light Tower – The light tower consists of three stacked lights, red, amber and green (top to bottom). It is
used to indicate the status of the machine.
Main program file – Text file containing the code that runs the workcell during normal operations.
Motion Sequence – A continuous motion profile. The valve is on (dispensing) during the entire motion
profile. Also known as a Dispense / Spray Path or Path.
OIT – Operator Interface terminal.
Path – A continuous motion profile. The valve is on (dispensing / spraying) during the entire motion
profile. Also known as a Dispense / Spray Path or Motion Sequence.
PathMaster® – Windows® programming software. Used to create, maintain and download program files
for the workcell.
Press – Press and release.
Program – A collection (or series) of motion sequences.
Project – File containing the code for one or more programs (typically 30 programs).
Purge Position – The location in the workspace where the head moves to perform all auto purge
operations.
PVA – Precision Valve & Automation, Inc.
Solvent Cups – Reservoirs containing a compatible solvent used to maintain the dispense / spray valves
when the workcell is not processing product.
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