American Magnetics 430, Installation, Operation And Maintenance Instructions

Page: 188 / 254

172 R
EV
9
A
MERICAN
M
AGNETICS
, I
NC
. R
EMOTE
I
NTERFACE
R
EFERENCE
: C
OMMAND
R
EFERENCE
•
PSwitch?
Returns a “0” indicating the switch heater is OFF, or a “1” indicating the
persistent switch heater is ON.
•
PERSistent?
Returns the state of the
MAGNET IN PERSISTENT MODE
LED on the
front panel of the Model 430: “0” if the LED is OFF; “1” if the LED is ON.
Q
UENCH
S
TATE
C
OMMANDS AND
Q
UERIES
The quench commands control and query the quench state of the Model
430 Programmer. For further information regarding the quench detection
functions, see page 123.
•
QUench {0|1}
Clears or sets the quenched state. Sending a “0” clears any quench
condition (equivalent to using the
RESET QUENCH
front panel
SHIFT+3). Sending a “1” sets a quench condition. Setting the quench
state to “1” is equivalent to a quench detection by the Model 430
Programmer — the power supply output is forced to 0 V, the quench
output of the rear panel Quench I/O connector is asserted, and all
ramping functions are disabled.
•
QUench?
Queries the quench state. If a “0” is returned, no quench condition exists.
If a “1” is returned, a quench detect has occurred and is still in effect.
•
QUench:COUNT?
Queries the number of recorded quench events in the non-backup
quench event file.
•
QUenchFile?
Formats and sends the contents of the recorded quench events file as a
formatted ASCII text stream. This allows the user to view the state of
both the magnet and Model 430 Programmer at each recorded quench
event. The output of this query is terminated with two contiguous pairs of
<CR><LF> characters (i.e. double terminators).
•
QUenchBackup?
Formats and sends the contents of the quench events backup file as a
formatted ASCII text stream. When the number of recorded quench