American Magnetics 430, Installation, Operation And Maintenance Instructions

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94 R
EV
9
A
MERICAN
M
AGNETICS
, I
NC
. O
PERATION
: S
ETUP
S
UBMENU
D
ESCRIPTIONS
: P
ROTECTION
S
UBMENU
magnet will also be ramped to zero field/current
if the
temperature exceeds
T
max
.
A
UX
-I
N
3: T S
CALE
This value controls the scaling of the voltage measured via the
Auxiliary Input channel 3 (see page 202). The measured voltage
is multipled by this scale factor in Kelvin/Volts. The value is
determined by the specific output scaling applied by the external
temperature measurement device.
NOTE
The correctness of this scaling parameter is critical to the accurate
operation of the protection afforded by the Operational Limits
function.
A
UX
-I
N
3: T O
FFSET
This value controls the offset in Kelvin of the temperature
measured via the Auxiliary Input channel 3 (see page 202). The
measured voltage is first multipled by the
T Scale
factor and then
the
T Offset
is added to determine the voltage-to-temperature
conversion. The value is determined by the specific output offset
applied by the external temperature measurement device.
NOTE
The correctness of this offset parameter is critical to the accurate
operation of the protection afforded by the Operational Limits
function.
E
NABLE
E
XTERNAL
R
AMPDOWN
The External Rampdown function of the Model 430 Programmer
can be used to allow an external contact-signal to cause the
magnet to be ramped to zero field (even if it is in persistent
mode) should a fault or alarm occur in a magnet system. Signals
+50.00 A — Aux-In 3: T Scale (K/V)
4.50 K +1.000
+50.00 A — Aux-In 3: T Offset (K)
4.50 K 0.000
0.00 A — External Rampdown Enabled?
0.00 Vs
NO YES