Veeco MPS-3000 CE, Technical Manual

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11
Keylock (4)
The KEYLOCK switch enables or disables the MODE switch.
• In the disable position, the MODE switch will not function, and
the active mode will be locked in.
• The KEYLOCK switch must be in the enable position to change
the mode of operation.
Mode (5)
The MODE switch selects the power supply’s operation mode.
• The KEYLOCK switch must be in the Enable position to change
from one mode to another.
Manual
All parameters, except beam current, may be adjusted from the front
panel.
• Operating conditions may be stored or recalled from memory.
• All switches on the front panel are active in this mode.
• The word MANUAL appears indicating that Manual mode has
been selected.
Local
Only the following parameters may be adjusted: beam voltage, beam
current, accelerator voltage, and A/B Ratio when in Local mode. All
remaining parameters may not be changed from the front panel.
• The micro-processor controls the non-adjustable parameters
to obtain the programmed values.
• Operating conditions may be stored in or recalled from mem-
ory.
• All the front panel switches are active in this mode.
• The word LOCAL appears above the MODE switch indicating
that Local mode has been selected.
Local Restricted
No parameter may be adjusted in this mode. However, parameters may
be recalled from memory.
• The enunciators above the FUNCTION and MODULE
switches will be dark when in Local Restricted mode.
• The letters LOC RES appear above the MODE switch.
• All switches, except the FUNCTION and MODULE switches,
are active in this mode.