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MSI 5A
5A Current input adapter
Technical Reference Manual
v 1.0
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MSI 5A
Table of Contents
1
Technical data .................................................................................................................................. 3
1.1
2
Electrical specifications ........................................................................................................... 3
Connectors ....................................................................................................................................... 4
2.1
Input connector pinout ............................................................................................................. 4
2.2
Output connector pinout .......................................................................................................... 4
3
Safety instructions ............................................................................................................................ 5
4
Operation .......................................................................................................................................... 5
4.1
4.1.1
5
MSI adapters / TEDS sensor support ...................................................................................... 6
Manual operation ................................................................................................................. 7
Documentation Version .................................................................................................................... 8
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MSI 5A
1
Technical data
1.1
Electrical specifications
Input current
5.00A (dc or acrms continuous) (1)
Pulse load
25.00A @ 5.0sec, 120sec interval, continuous
Shunt resistor
10.0mΩ
Resistance Tolerance
Calibrated to ±0.1%, calibration in TEDS
Temperature Coefficient
< ±30ppm/ºC typical (+20ºC to +60ºC)
Resistor dielectric
withstanding voltage
1000Vac
Input connector type
MSTB 2,5/ 3-STF-5,08
Phoenix Contact, mates with MSTB 2,5/ 3-GF-5,08
Connector info
2.5mm2 Nominal cross section
TEDS
MSI Compatible
(1)
Do not exceed absolute maximum rating!
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MSI 5A
2 Connectors
2.1
Input connector pinout
Wire connector, 3pin plug
-
+
G
Pin
1
2
3
Name
+
G
I/O
I, Power
I, Power
I, Signal
Description
Current Input Current Input +
Analog Ground
Illustration 1: 3pin plug
Illustration 2: The figure shows a 10-position version of the plug
2.2
Output connector pinout
DSUB 9 connector
Pin
1
2
3
4
5
6
7
8
9
Name
OE+
Out+
OEsnsAGND
Reser.
OEsns+
OutOETEDS
I/O
I, Power
O, Signal
I, Power
I
I/O
I, Signal
O, Signal
I, Power
I/O, Signal
Description
Output enable +
Signal Output +
Output enable Analog Ground
Reserved / Not Connected
Output Enable +
Signal Output Output enable TEDS
Illustration 3: 9 pin DSUB plug
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MSI 5A
3 Safety instructions
Your safety is our primary concern! Please be safe!
WARNING
Use MSI 5A adapter only with SIRIUSi - Isolated version.
Signal Outputs are disconnected from DSUB connector contacts until adapter and its DSUB connector
is connected to DAQ to protect the user from possible high voltage present on the contacts when current
source input is already connected to the input 3pin plug.
Protective switch is powered by DAQ Exc. Voltage.
Illustration 5: MSI 5A Adapter partial schematic
4 Operation
Signal output enable
indicator
Illustration 4: MSI 5A Adapter
Signal output enable indicator LED is turned ON (green) when output signal is present on the Signal
Output pin 2 and 7.
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MSI 5A
4.1
MSI adapters / TEDS sensor support
Since there is an inbuilt TEDS device in the adapter itself and if  MSI adapters/TEDS sensors under
Hardware setup is selected, adapter will be recognised and parameters will be set automatically.
Please check if you are using the latest software where MSI 5A Adapter is supported.
Illustration 6: Setting – Hardware setup
Illustration 7: MSI adapters/TEDS sensors checkbox
Illustration 7: MSI 5A adapter is recognized and set automatically
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MSI 5A
4.1.1
Manual operation
If MSI adapters/TEDS sensors is left unchechked under Hardware setup then sensor supply and
range has to be set manualy.
Illustration 9: MSI adapters/TEDS sensors checkbox is left unchecked
Under Channel setup for channel N, set Excitation voltage to 12V.
Signal Output Enable indicator LED will be turned on to indicate that measured signal is present on
the signal outputs.
Illustration 10: Excitation voltage setting
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MSI 5A
5 Documentation Version
Doc-Version
Date
[dd.mm.yyyy]
Notes
0.9
09.05.2014
Pre-release version
1.0
21.05.2014
Initial version, amended electrical specs., new safety instructions,
new schematic.
___________________
For support please contact support [at] dewesoft.com
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MSI 5A
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