8 persistent switch heater current shift-key, 9 stability shift-key, 10 vs <> vm shift-key – American Magnetics 4Q1010PS-430 Integrated Power Supply System User Manual

Page 57: 11 volt meter shift-key, 12 fine adjust shift-key, 13 persist. switch control shift-key, Operation

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Rev. 5

39

Operation

Shift Key Commands : Persistent Switch Heater Current

3.7.8

Persistent Switch Heater Current SHIFT-key

Use of the

P. SWITCH HTR. CUR.

SHIFT-key provides a shortcut to the

menu

1

for setting persistent switch heater current. The value can be set to

between 0.0 and 125.0 mA. The default value is 10.0 mA unless preset by

AMI to match a specific superconducting magnet.

3.7.9 Stability

SHIFT-key

Use of the

STAB.

SHIFT-key provides a shortcut to the menu for defining

the Model 430 stability setting. The stability setting is specified in percent

and controls the transient response and stability of the system. The valid

input range is from 0.0 to 100.0%. The default value is 0.0% unless preset

by AMI to match a specific superconducting magnet.

See section 3.10.2.1 on page 48 for details of how to determine the stability

setting to use.

3.7.10 Vs <> Vm SHIFT-key

The

Vs <> Vm

SHIFT-key is used to toggle the voltage display between

display of the voltage across the magnet (Vm) and the power supply output

voltage (Vs). See section 3.2.2 on page 24 for details.

3.7.11 Volt

Meter

SHIFT-key

The

VOLT METER

SHIFT-key is used to toggle the main display between

display of a voltmeter indicating magnet voltage (Vm) or supply voltage

(Vs), and display of ramp mode and persistent switch heater state. See

section 3.2.4 on page 25 for details.

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 26 for

details.

3.7.13 Persist. Switch Control SHIFT-key

Refer to section 3.6.1 on page 29.

1. Refer to section 3.10.2.8 on page 55.

+50.00 A — PSwitch Current (mA)

+0.50 Vs

10.0

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