American Magnetics 05200PS-430-601 High Stability Integrated Power Supply System - Manual (Page 51)

Rev. 5 33
Operation
Single-key Commands
selector will move to the last picklist value. An example of a picklist entry
in progress (picklist entry active) is illustrated below:
When the item selector is pointing at the desired picklist value, press the
ENTER key to accept the picklist value. Values are not applied to the
operation of the Model 430 Programmer until the ENTER key is pressed
and the asterisk disappears from the display.
If the ESC key is pressed while picklist entry is active, the setting will
revert to the previous value and picklist entry will be made inactive. Note
that if the ESC key is pressed when numeric entry is not active, the
current submenu will be exited and the next higher level submenu will be
entered (if it exists).
3.6 Single-key Commands / Menu
All ramping controls ( PERSIST. SWITCH CONTROL , TARGET FIELD
SETPOINT , RAMP / PAUSE and RAMP TO ZERO ) are accessed with a
single keystroke. See section 3.12 on page 79 for details of ramping
controls. Below is a brief summary of the function of each of these keys.
3.6.1 Persistent Switch Control Key
Pressing the PERSIST. SWITCH CONTROL key toggles the Model 430
Programmer persistent switch heater control function.
If the persistent switch heater is energized and this key is pressed, the
persistent switch heater is de-energized. The power supply is then
maintained for the time set by the PSwitch Cooled Time variable before
being ramped down to zero at the rate set by the PSw P/S Ramp Rate
variable (default rate is 10 A/sec).
If the persistent switch heater is de-energized and this key is pressed, the
power supply is ramped to the current present in the magnet when the
+50.00 A - Field Units*
+0.50 Vs Kilogauss Tesla
Figure 3-4. Single Input Keys