American Magnetics 430, Installation, Operation And Maintenance Instructions

Page: 218 / 254

202 R
EV
9
A
MERICAN
M
AGNETICS
, I
NC
. A
PPENDIX
: A
UXILIARY
I
NPUTS
C
ONNECTOR
A
UXILIARY
I
NPUTS
C
ONNECTOR
The Aux Inputs connector provides pins for external voltage inputs,
reserved for future use. The shell lugs of the connector are connected to
the Model 430 Programmer chassis ground. The Aux Inputs connector is
a high density 15-pin D-sub female connector.
Each input pin has a 1 megohm resistor to analog circuit common. The
inputs are differential inputs. Aux Input 1 and Aux Input 2 have a ± 1 V
nominal input voltage range. Aux Input 3, Aux Input 4, Aux Input 5 and
Aux Input 6 have a ±10 V nominal input voltage range.
Aux Inputs Connector Pin Definitions
Pin Function Pin Function
1
Aux Input 1 + (Vm +)
a
a. Auxiliary Input 1 is consumed by the magnet voltage input internally connected to the
Magnet Station connector (pins 11+ and 12–) for Model 430 units that ship with version
3.00 firmware or later . It is used for the magnet voltage-based switch transition detection
logic and is not available for general use. See page 85 for more information.
9 Aux Input 4 –
2 Aux Input 1 – (Vm –) 10 not used
3
Aux Input 2 + (Vss +)
b
b. Auxiliary Input 2 is used for the sample voltage taps (Vss) for the optional Short-Sample
operational mode. See page 229 for more information.
11 Aux Input 5 +
4 Aux Input 2 – (Vss –) 12 Aux Input 5 –
5 not used 13 Aux Input 6 +
6
Aux Input 3 + (Tmax +)
c
c. Auxiliary Input 3 is optionally used for the Tmax 0 to 10VDC signal from an external tem-
perature monitor. See page 93 for more information.
14 Aux Input 6 –
7 Aux Input 3 – (Tmax –) 15 not used
8 Aux Input 4 +