Digital Sweep Instruction Manual
TECHNICAL DATA
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Rev 1.0.0
I/O control
Analog Interface
25 Dsub female connector, 9 Inputs: 75V reverse
breakdown
Passive Mode (contact closure)
Outputs: 3 relay contacts NO @ max 1A, 24 DC or AC
2.5 Features
The Sweep outputs user adjustable patterns to EB sources. A Sweep is needed for
positioning and moving the e-beam around the source's crucible pocket in a defined
pattern. The beam movement helps heat (and evaporate) the crucible pocket’s
material more evenly. Sweeping is accomplished by running current through
magnetic coils next to the crucible pocket. One output runs to each of two coils
(latitude and longitudinal), which are placed perpendicularly to each other. Their
magnetic fields affect the position/motion of the electron beam.
A simple front panel touch screen color LCD (liquid crystal display) and handheld
joystick interface is used to configure and run EB sweep patterns. The LCD display
allows for easy visualization of each pattern. The LCD panel prompts the user
through the various steps of a normal operation.
2.6 Interfaces
2.6.1 Input/Output Interface
Connector:
D-Sub 25 male connector
Refer to chapter 3.6.5 for details
No of Digital Inputs:
9
–
Inputs are contact closure to sweep reference. Input
voltages greater than 5VDC may damage the Digital Sweep.
Response time:
100 ms max
No of Digital Outputs:
3
–
Relay; 50V maximum compliant
Response time:
100 ms max
