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4 field units, 5 quench rate, 6 settings protection – American Magnetics 4Q06125PS-430 Integrated Power Supply System User Manual

Page 78: Operation

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60

Rev. 5

Operation

Setup Menu : Misc

3.10.3.4

Field Units

This picklist value specifies whether the field is specified and

displayed in units of kilogauss (kG) or tesla (T). The units selected

also applies to remote interface commands. The default setting is

kilogauss.

3.10.3.5

Quench Rate

This picklist value specifies the sensitivity of the quench detection

algorithm. The default value (1.5) will be appropriate for most

magnets. Occasionally, some magnets quench very slowly and the

value of this parameter may need to be adjusted to a lower value so

that the Model 430 Programmer detects the slow quench. The

available range for this parameter is 0.1 to 2.0. The value can be set

by using either the numeric keypad per section 3.3 on page 25 or

the fine adjust knob (section 3.4 on page 26). If the magnet

quenches and the Model 430 Programmer does not select the

quench, the value should be lowered until all quenches are

detected.

3.10.3.6

Settings Protection

Settings Protection allows virtually

1

every command and menu/

submenu setting to be protected from alteration or use. If a setting

is locked, it cannot be used from the front panel without first

unlocking the setting, which requires entering the correct

password. Note that settings protection only applies to front panel

access, and not to remote access (via Ethernet or RS-232).

The use of settings protection allows specific commands and/or

settings to be locked by a magnet system “administrator,” so that

1. The one exception is the

RAMP TO ZERO

button which cannot be locked. Also,

Magnet Inductance and Net Settings are not subject to locking due to their “read-
only” nature.

+50.00 A — Field Units

+0.50 Vs

Kilogauss

Tesla

+50.00 A

P Quench Rate (default 1.5)

+0.50 Vs

1.5

+50.00 A — Settings Protection

+0.50 Vs

Edit Settings