User guide

iv Rev. 5
Table of Contents
2.6 Special Configurations.........................................................................17
2.7 Superconducting Magnets with No Persistent Switch ......................17
2.8 Short-Circuit or Resistive Load...........................................................17
2.9 Power-Up and Test Procedure ............................................................18
Operation............................................................................................21
3.1 System Power On/Off Sequence .........................................................21
3.1.1 Model 430 Programmer Power On/Off....................................21
3.1.2 Energizing Power Supply ........................................................22
3.2 Model 430 Programmer Default Display............................................22
3.2.1 Field / Current Display ............................................................23
3.2.2 Voltage Display ........................................................................24
3.2.3 Status Indicator .......................................................................24
3.2.4 Main Display ............................................................................25
3.3 Entering Numeric Values....................................................................25
3.4 Using Fine Adjust Knob to Adjust Numeric Values ..........................26
3.5 Entering Picklist Values......................................................................27
3.6 Single-key Commands / Menu.............................................................28
3.6.1 Persistent Switch Control Key ................................................29
3.6.2 Target Field Setpoint Key ......................................................31
3.6.3 Ramp / Pause Key ....................................................................31
3.6.4 Ramp To Zero Key....................................................................31
3.7 SHIFT-key Commands / Menus..........................................................32
3.7.1 Ramp Rate SHIFT-key ............................................................33
3.7.2 Voltage Limit SHIFT-key ........................................................36
3.7.3 Reset Quench SHIFT-key ........................................................37
3.7.4 Increment Field SHIFT-key ....................................................37
3.7.5 Field <> Current SHIFT-key...................................................38
3.7.6 Decrement Field SHIFT-key ...................................................38
3.7.7 Field Units SHIFT-key ............................................................38
3.7.8 Persistent Switch Heater Current SHIFT-key.......................39
3.7.9 Stability SHIFT-key.................................................................39
3.7.10 Vs <> Vm SHIFT-key...............................................................39
3.7.11 Volt Meter SHIFT-key .............................................................39
3.7.12 Fine Adjust SHIFT-key............................................................39
3.7.13 Persist. Switch Control SHIFT-key ........................................39
3.8 LED Indicators.....................................................................................40
3.8.1 Power-on Indicator...................................................................40
3.8.2 Magnet Status Indicators ........................................................40
3.8.3 SHIFT Indicator.......................................................................41