American Magnetics 430, Инструкции по установке, эксплуатации и обслуживанию

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124 R
EV
9
A
MERICAN
M
AGNETICS
, I
NC
. O
PERATION
: Q
UENCH
D
ETECTION
detect condition, or until the quench condition is cleared by a remote
command.
If the
RESET QUENCH
key has been locked
58
, the user will be asked to
enter the password to clear the quench. The entry of this password will
not unlock this reset quench feature, but will only reset the current
quench event so operation may resume. Enter the password followed by
the
ENTER
key to reset the quench and continue.
When the
RESET QUENCH
key is used to clear the quench condition or
a remote clear command is issued, the Model 430 Programmer will
automatically enter the PAUSED mode and will attempt to maintain the
current present at the point the quench condition was cleared.
E
XTERNAL
Q
UENCH
D
ETECTION
The rear panel Quench I/O connector provides pins for external quench
input (contact closure — see page 199 of the
Appendix
for the connector
pinout). If the quench input is asserted, then the Model 430 Programmer
interprets this input as indication of a quench condition and the Model
430 automatically sets the power supply output voltage to zero and will
not respond to further input until the
RESET QUENCH
key is used to
clear the quench detect condition, or until the quench condition is
cleared by a remote command. The rear panel input cannot be disabled;
however, it may be left disconnected without the possibility of a
generating a false quench condition.
NOTE
If the external quench detection circuit continues to assert the
quench detection input of the Model 430 Programmer, the
RESET QUENCH (
SHIFT+3) key will be unable to clear the
quench condition.
D
ISABLING
I
NTERNAL
Q
UENCH
D
ETECTION
The internal quench detection feature may be disabled in the Load
submenu
59
. However, the rear panel Quench I/O connector output
remains active at all times.
58. See page 99.
+44.36 A Enter Password*
0.00 Vs _
59. See page 89.