National Instruments NI 9683 Specifications

USER GUIDE AND SPECIFICATIONS

NI 9683

General Purpose Inverter Controller RIO Mezzanine Card

This document provides pinouts, connectivity information, and specifications for the National
Instruments 9683 General Purpose Inverter Control (GPIC) RIO Mezzanine Card (RMC).

Caution National Instruments makes no product safety, electromagnetic

compatibility (EMC), or CE marking compliance claims for the NI 9683. The
end-product supplier is responsible for conformity to any and all compliance
requirements.

Caution The NI 9683 must be installed inside a suitable enclosure prior to use.

Hazardous voltages may be present.

Caution Exercise caution when placing the NI 9683 inside an enclosure. Auxiliary

cooling may be necessary to keep the device under the maximum ambient
temperature rating for the NI 9683. Refer to the Specifications section for more
information about the maximum ambient temperature rating.

Caution The NI 9683 is designed for low voltage signals. You must ensure that all

signals connected to the NI 9683 are isolated and no unsafe voltages are present at
the NI 9683 inputs. Voltages that exceed the specifications could result in damage to
the NI 9683.

Caution Use the NI 9683 with only NI sbRIO-9605/9606 devices. The NI 9683 is

not electrically or mechanically compatible with other NI sbRIO devices.

Caution Do not operate the NI 9683 in a manner not specified in this user guide.

Product misuse can result in a hazard. You can compromise the safety protection built
into the product if the product is damaged in any way. If the product is damaged,
return it to National Instruments for repair.

Figure 1. NI 9683 Parts Locator Diagram

1

2

7

5

9

3

4

6

8

1 Primary Side
2 Secondary Side
3 LVTTL DIO

4 Sourcing DI
5 Sinking DO and Relay Control DO
6 Half-bridge DO

Dimensions

Figures 2 through 4 show dimensional drawings of the NI 9683.

Figure 2. NI 9683 Primary Side Dimensions in Millimeters (Inches)

114.3 (4.500)

111.1 (4.374)

109.22 (4.300)

93.32 (3.674)

91.67 (3.609)

23.57 (0.928)

21.59 (0.850)

11.81 (0.465)

0.00 (0.000)

–5.08 (–0.200)

0.00 (0.000)

–5.08 (–0.200)

–1.88 (–0.074)

32.26 (1.270)

49.05 (1.931)

71.76 (2.825)

7 Simultaneous AI
8 Scanned AI and AO
9 sbRIO Mezzanine Connector

108.59 (4.275)

145.39 (5.724)

162.05 (6.380)

169.67 (6.680)

174.75 (6.880)

2 | ni.com | NI 9683 User Guide and Specifications

Figure 3. NI 9683 Secondary Side Dimensions in Millimeters (Inches)

105.46 (4.152)

84.12 (3.312)

73.66 (2.900)

12.70 (0.500)

165.91 (6.532)

53.34 (2.100)

10.92 (0.430)

147.32 (5.800)

3.76 (0.148)

0.00 (0.000)
–5.08 (–0.200)

3.76 (0.148)

0 (0.000)

–5.08 (–0.200)

11x Ø 3.30 (0.130)

9.98 (0.393)

Figure 4. NI 9683 Maximum Height of Components in Millimeters (Inches)

Note For more information about the dimensions of the NI 9683, including

two-dimensional drawings and three-dimensional models, go to

dimensions

.

NI 9683 User Guide and Specifications | © National Instruments | 3

ni.com/

Typical NI 9683 System

Figure 5 shows a typical NI 9683 system.

Figure 5. Typical NI 9683 System

6

5

1

2

4

3

1 Enclosure. The NI 9683 must be installed inside a suitable enclosure.
2 NI sbRIO-9605/9606. Use the NI 9683 with only NI sbRIO-9605/9606 sbRIO devices.
3 NI 9683.
4 Interface board. The NI 9683 specifications assume direct board-to-board connections. Refer the Selecting

a Wire Gauge for Relay Control Digital Outputs section for information about designing ribbon cables to

meet the relay control DO specifications on the NI 9683.

5 Local ambient temperature location. The local ambient temperature is the operating temperature of the

NI 9683 inside the enclosure. Refer to the Environmental section for more information about the operating
temperature.

6 Ambient temperature location. The ambient temperature is the operating temperature outside of the

enclosure. Refer to the Environmental section for more information about the operating temperature.

4 | ni.com | NI 9683 User Guide and Specifications

Mating the NI 9683 to the NI sbRIO-9605/9606

Figure 6 shows how to mate the NI 9683 to the NI sbRIO-9605/9606. Ensure that the
NI sbRIO-9605/9606 is powered off before connecting the NI 9683.

Caution You must use the standoffs specified below when mating the NI 9683 to

the NI sbRIO-9605/9606 to properly seat the sbRIO mezzanine connectors and
prevent damaging the device.

Figure 6. Mating the NI 9683 to the NI sbRIO-9605/9606

1

2

3

4

1 4-40 × 0.250 in. Screw (×8)
2 NI sbRIO-9605/9606

Note The screws include a nylon patch to prevent them from loosening when

subject to vibration. NI recommends using a 3/16 in. socket and Phillips screwdriver
when mating the NI 9683 to the NI sbRIO-9605/9606 to ensure the screw installs in
the standoff correctly.

1

3 4-40 × 0.380 in. Standoff (×4)
4 NI 9683

NI 9683 User Guide and Specifications | © National Instruments | 5

Connecting the NI 9683

The NI 9683 provides connections for 16 simultaneous analog input channels, 8 scanned analog
input channels, 8 analog output channels, 28 sourcing digital input channels, 14 half-bridge
digital output channels, 24 sinking digital output channels, 4 relay control digital output
channels, and 32 LVTTL digital input/output channels.

Table 7 lists and describes the connectors on the NI 9683 and the part number and manufacturer
of each connector. Refer to the manufacturer for information about using and matching these
connectors.

Figure 7. NI 9683 Connector Descriptions

Connector Description Recommended Mating Connector

Simultaneous AI 40-position header On-Shore Technology, Inc. (SH2-40G-PT)

Scanned AI, AO 20-position header On-Shore Technology, Inc. (SH2-20G-PT)

Sourcing DI 34-position header On-Shore Technology, Inc. (SH2-34G-PT)

Sinking DO, Relay Control DO 40-position header On-Shore Technology, Inc. (SH2-40G-PT)

Half-Bridge DO 26-position header On-Shore Technology, Inc. (SH2-26G-PT)

LVTTL DIO 60-position header On-Shore Technology, Inc. (SH2-60G-PT)

6 | ni.com | NI 9683 User Guide and Specifications

Figure 8 shows the NI 9683 pin assignments.

Figure 8. NI 9683 Pin Assignments

AI14–

AI15–

4 3

21

AI14+

AI15+

AI12–

AI13–

8

65

7

AI12+

AI13+

AI11–

10

9

AI11+

Simultaneous AI

AI6–

AI7–

AI8–

AI9–

AI10–

18

161412

20

17

151311

19

AI6+

AI7+

AI8+

AI9+

AI10+

AI5–

AI5+

AI4–

AI4+

AI1–

AI2–

AI3–

28

262422

30

27

252321

29

AI1+

AI2+

AI3+

AI0–

31

AI0+

CS COM

CS COM

363432

33

35

CS COM

CS COM

CS COM

CS COM

38

40

37

39

CS COM

CS COM

Scanned AI & AO

AO6

AO7

AI6

AO0

AO2

GND

AO4

10

8

642

7

531

9

AI7

AO1

AO3

GND

AO5

AI4

AI5

GND

161412
151311

GND

+3.3 V
+3.3 V
DIO 31
DIO 30
GND
DIO 27
DIO 26
GND
DIO 23
DIO 22
GND
DIO 19
DIO 18
GND
DIO 15
DIO 14
DIO 13
DIO 12
DIO 11
DIO 10
DIO 9
DIO 8
DIO 7
DIO 6
DIO 5
DIO 4
DIO 3
DIO 2
DIO 1
DIO 0

AI2

18
17

AI3

AI0

20
19

AI1

LVTTL

1

3

5
7

10

9

12

11

14

13

16

15

18

17

20

19

22

21

24

23

26

25

28

27

30

29

32

31

34

33

36

35

38

37

40

39

42

41

44

43

46

45

48

47

50

49

52

51

54

53

56

55

58

57

60

59

2

GND

4

GND

6

GND

8

DIO 29
DIO 28
GND
DIO 25
DIO 24
GND
DIO 21
DIO 20
GND
DIO 17
DIO 16
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

Half-Bridge

DO0
DO1
DO2
DO3
DO4
DO5
DO6
GND
GND
GND
GND
GND
Vex t

DO

26
24
22
20
18
16
14
12
10

8

6
4
2

Sourcing DI

1

NC
VI P1
DI P1.13
DI P1.11

DO20

DO18

3

579

4

6

DO21

DO19

DO22

1
2

DO23

DI P1.9
DI P1.7
DI P1.5
DI P1.3
DI P1.1
DI P0.13
DI P0.11
DI P0.9
DI P0.7
DI P0.5
DI P0.3
DI P0.1
VI P0

25

GND

23

GND

21

GND

19

GND

17

GND

15

GND

13

DO7

11

DO8

9

DO9

7

DO10

5

DO11

3

DO12

1

DO13

Relay

Control

DO

DO2+

DO1+

DO0+

37 38

3940

DO2–

DO1–

DO0–

Sinking DO

DO8

GND

DO6

DO4

DO2

DO0

NC

NC

DO3+

NC

23

252729

NC

DO1

21

24

262830

22

DO9

GND

DO7

DO5

DO3

31
32

33

35 36

34

DO3–

DO12

DO10

151719
161820

DO13

DO11

13
14

GND

DO14

11

10

12

GND

DO15

DO16

8

DO17

2

NC

3

4

GND

5

6

DI P1.12

7

9

DI P1.10

9

10

DI P1.8

11

12

DI P1.6

13

14

DI P1.4

15

16

DI P1.2

17

18

DI P1.0

19

20

DI P0.12

21

22

DI P0.10

23

24

DI P0.8

25

26

DI P0.6

27

28

DI P0.4

29

30

DI P0.2

31

32

DI P0.0

33

34

GND

NI 9683 User Guide and Specifications | © National Instruments | 7

Simultaneous Analog Input

NI 9683

Simultaneous AI+

Simultaneous AI–

Isolated

ADC

Voltage Source

+

–

NI 9683

Simultaneous AI+

Simultaneous AI–

Isolated

ADC

Voltage Source

+

–

The NI 9683 provides connections for 16 pseudo-differential analog input channels.

Each channel has an AI+ and AI- pin to which you can connect a voltage signal. AI- is internally
connected to the isolated ground reference through a high value resistor.

Connecting Differential and Single-Ended Voltage Signals to the NI 9683

You can connect grounded or floating signal sources to the NI 9683. Connect the positive
voltage signal to AI+ and the negative voltage signal to the AI-.

Figure 9. Connecting a Differential Voltage Signal to a Simultaneous AI Channel

Figure 10. Connecting a Single-Ended Voltage Signal to a Simultaneous AI Channel

NI 9683 Circuitry

The NI 9683 analog channels share a common ground that is isolated from other parts of the
board. The NI 9683 protects each channel from overvoltages. Refer to the Specifications section
for more information about overvoltage protection. The incoming analog signal on each channel
is buffered and conditioned by the differential amplifier and then sampled by a 12-bit ADC.

Each channel has an independent track-and-hold amplifier and ADC that allow you to sample
and convert all 16 channel simultaneously.

Connecting Current Sensors to the NI 9683

You can connect current sensors to the NI 9683 using a termination resistor to convert the current
measurement to a single-ended voltage measurement.

Connect the current sensor output to AI+ and the external power supply COM to the current
sensor common pin (CS COM) on the NI 9683.

8 | ni.com | NI 9683 User Guide and Specifications

Figure 11. Connecting a Current Sensor to the NI 9683

NI 9683

Interface Board

Termination
Resistor

AI0+OUT

PS–

PS+

PS–

PS+

AI1+

CS COMCOM

Isolated

ADC

Current
Sensor

External
Powe r
Supply

R

max

5V

I_peak

max

--------------------------=

R

max

5V

0.07A

-------------- 71Ω==

To avoid the affect of common mode impedance on the measurement, connect one end of all the
termination resistors to a single, small plane. Then have a single connection from the plane to
the CS COM pin of the NI 9683.

The NI 9683 simultaneous analog inputs have ±10 V and ±5 V input ranges that can
accommodate termination resistor values in a certain range, based on the sensor peak current.
Select the highest possible termination resistor to maximize the dynamic range of the analog
input. Refer to the Specifications section for more information about the analog input range. Use
the following equation to determine the maximum value for the terminal resistor based on the
sensor peak current.

For a current sensor with a peak output current of 70 mA, the maximum termination resistor that
can be used with the NI 9683 is as follows:

Note Using the ±5 V input range can reduce the power dissipation on the

termination resistor by 50% when compared to the power dissipation of the ±10 V
input range.

Scanned Analog Input (Monitoring)

The NI 9683 provides connections for 8 single-ended scanned analog input channels.

Each channel has an AI pin to which you can connect a voltage signal. Scanned analog input and
scanned analog output channels share four GND pins on the dedicated 20-position connector.

NI 9683 User Guide and Specifications | © National Instruments | 9