Rev. 5
81
Operation
Ramping Functions : Ramping to Zero
will begin when the
RAMP / PAUSE
key is pressed to take the Model 430
Programmer out of PAUSED mode. The ramp rate will be controlled by the
preset ramp rate variables as described in section 3.7.1 on page 37.
3.12.4 Ramping to Zero
Pressing the
RAMP TO ZERO
key activates an immediate ramp to zero
field/current. See section 3.6.4 on page 36 for details.
3.12.5 Fine Adjust of Field / Current in Holding Mode
If the target field/current menu is active
and
the Model 430 Programmer is
in HOLDING mode (indicated by a “–” Status Indicator), the fine adjust
knob can be used to manipulate the output current. While at the target
field/current menu, press
SHIFT
, followed by
FINE ADJUST
. This will
allow fine adjustment of the field/current (see section 3.4).
When the fine adjust knob is turned the Model 430 Programmer will follow
the target current as it is adjusted, at the defined ramp rate for the
segment in which it is operating. Adjustment of the current is prevented
from exceeding the Current Limit specified in the Load setup menu (see
section 3.10.2.4 on page 56). The
resolution
of the adjustment is 15 digits,
which is greater than the resolution of the display.
When the field/current is adjusted to the desired value, press the
ENTER
key to keep that value as the target field/current. If any other operation is
performed before
ENTER
is pressed, the target field/current value will
revert back to what it was before adjustment using the fine adjust knob
was initiated, and the current will immediately begin ramping back to that
value.
3.13 Persistent Switch Control
The Model 430 Programmer includes an integral persistent switch heater
that provides the capability of controlling the persistent mode of the
magnet either locally from the front panel of the Model 430 Programmer
using the
PERSIST. SWITCH CONTROL
key
1
, or remotely through a
communications interface. The persistent mode of the magnet is indicated
by the
MAGNET IN PERSISTENT MODE
LED
2
.
1. Refer to section 3.6.1 on page 33.
2. Refer to section 3.8.2.2 on page 44.
+20.02 A -
Target Current (A)
+0.20 Vs
+20.0239
Содержание 05100PS-430-601
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Страница 10: ...x Rev 5 List of Figures ...
Страница 12: ...xii Rev 5 List of Tables ...
Страница 18: ...xviii Rev 5 Foreword Safety Summary ...
Страница 30: ...12 Rev 5 Introduction Operating Characteristics ...
Страница 42: ...24 Rev 3 Installation Power Up Procedure ...
Страница 114: ...96 Rev 5 Operation Summary of Operational Limits ...
Страница 119: ...Rev 5 101 Remote Interface Reference SCPI Command Summary LOCK ABsorber LOCK BRIGHTness LOCK NETsetup ...
Страница 156: ...138 Rev 5 Remote Interface Reference Error Messages ...
Страница 168: ...150 Rev 5 Service Return Authorization ...
Страница 190: ...172 Rev 5 Appendix Power Supply Details Figure A 3 Model 08150PS Dimensions Top and Side Views ...
Страница 220: ...202 Rev 5 Appendix Persistent Switch Operation Flowchart Figure A 17 Persistent Switch Operation Flowchart Page 3 ...
Страница 226: ...208 Rev 5 Index ...