American Magnetics 4Q1010PS-430 Integrated Power Supply System - Manual (Page 56)

38 Rev. 5
Operation
Shift Key Commands : Field <> Current
3.7.5 Field <> Current SHIFT-key
The FIELD <> CURRENT SHIFT-key is used to toggle between the use of
field units, either kG (kilogauss) or T (tesla), and the use of current units
(A) 1 . If the Model 430 Programmer is using field units (either kG or T) and
the FIELD <> CURRENT SHIFT-key is used, the Model 430 Programmer
will begin using current units (A). Conversely, if the Model 430 is using
current units (A) and the FIELD <> CURRENT SHIFT-key is used, the
Model 430 will begin using field units (either kG or T).
Note
The Model 430 Programmer cannot use field units unless a valid
coil constant has been entered
2
.
3.7.6 Decrement Field SHIFT-key
The DECR. FIELD SHIFT-key is used to manually decrease the current/
field. This is done at the defined ramp rate.
When the DECR. FIELD SHIFT-key is used, the current/field begins
ramping down. If the DECR. FIELD SHIFT-key is used again (while the
current/field is manually ramping down), the ramping will be paused.
Alternately, the RAMP / PAUSE key may be pressed to pause manual
ramping. Manual ramping will continue until paused or the Current
Limit 3 or Magnet Current Rating is achieved.
Note
If the current/field is negative, using the DECR. FIELD SHIFT-key
to decrease (make less positive) the current/field, the magnitude of
the current/field increases.
3.7.7 Field Units SHIFT-key
Use of the FIELD UNITS SHIFT-key provides a shortcut to the picklist
menu 4 for defining whether the field is specified and displayed in units of
kilogauss (kG) or tesla (T). The selected option also applies to remote
interface commands. The default setting is kilogauss.
1. The value is always displayed in current (A) when an installed persistent switch is in
the cooled state since the value represents power supply current only, independent
of magnet current/field.
2. Refer to section 3.10.2.2 on page 50.
3. Refer to section 3.10.2.4 on page 52.
4. Refer to section 3.10.3.4 on page 60.
+50.00 A - Field Units
+0.50 Vs Kilogauss Tesla