American Magnetics 03300PS-430-601 High Stability Integrated Power Supply System - Manual (Page 62)

44 Rev. 5
Operation
Shift Key Commands : Fine Adjust
3.7.12 Fine Adjust SHIFT-key
The FINE ADJUST SHIFT-key is used to enable the use of the front panel
fine adjust knob to adjust numeric values. See section 3.4 on page 31 for
details.
3.7.13 Persist. Switch Control SHIFT-key
Refer to section 3.6.1 on page 33.
3.8 LED Indicators
The Model 430 Programmer has six front panel LED indicators. See figure
with Table 1-1 on page 5 for the location of these indicators.
3.8.1 Power-on Indicator
The green power-on LED indicates that the Model 430 Programmer is
powered on.
3.8.2 Magnet Status Indicators
Four LEDs are grouped together to show the magnet status.
3.8.2.1 Field At Target Indicator
The green FIELD AT TARGET LED indicates that the current is at
the target value. If the magnet is not in persistent mode (persistent
switch heater is on), then this is an indication that the magnet field
has reached the target value. If the magnet is in persistent mode,
then this is an indication that the current being supplied to the
magnet system has reached the target value.
3.8.2.2 Magnet In Persistent Mode Indicator
Caution
If the Model 430 Programmer power is turned off while the
persistent switch is heated, persistent switch heating will be lost and
the magnet will enter persistent mode. The Model 430 will not have
Figure 3-6. Magnet Status LED Indicators.