National Instruments Power and I/O Accessory User manual

USER GUIDE
Power and I/O Accessory
For NI 177x Smart Cameras
The Power and I/O Accessory for NI 177x Smart Cameras (Power and I/O Accessory) is a
terminal block that simplifies power and I/O signal configuration for the NI 177x Smart Camera.
This document describes what you need to get started, installation and operation instructions,
and features of the Power and I/O Accessory.
Figure 1. Power and I/O Accessory for NI 177x Smart Cameras
The Power and I/O Accessory has the following features:
• 25-pin D-SUB connector and a 17-pin M12 to 25-pin D-SUB cable
• Spring terminals for each NI 177x Smart Camera I/O signal
• Spring terminal for 24 V output
• Safe mode switch
• User-replaceable fuses for open collector and current controlled outputs, RS-232, and
accessory power
1 IN0–IN3 connectors
2 TRGIN connector
3 RS-232 connector
4 24V IN connector
5 SAFE MODE switch
6 24V OUT connector
7 LED DRV connector
8 OUT0–OUT3 connectors
9 CAMERA connector
NATIONAL
INSTRUMENTS
OUT0T0
IN0IN0 IN1IN1 IN2 IN3
1
14
14
13
25
TRGINTRGIN 2 4V ININ
SAFEAFE
MODEMODE
RS-232RS-232
CAMERACAMERA
INPINPUTS
OUT1T1 OUT 2 OUT3
LEDLED DRVRV 24V OUT24V OUT
1
3
4
9
2
6 5
7
8

NI 177x Power and I/O Acessory User Guide 2ni.com
• RS-232 connector for serial communication
• Built-in DIN rail clips for easy mounting
What You Need to Get Started
❑Power and I/O Accessory kit, including the accessory and 17-pin M12 to 25-pin D-SUB
cable
❑NI 177x Smart Camera
❑NI 177x Smart Camera power supply (782032-01)
❑(Optional) NI 9-pin female D-SUB to 9-pin female D-SUB null modem RS-232 cable
(part number 182238-xx)
❑12–28 AWG wire
❑Wire cutter
❑Wire insulation stripper
Related Documentation
The NI 177x Smart Camera User Manual, available from ni.com/manuals, contains
information you may find helpful as you set up and use the Power and I/O Accessory.
Installing the Power and I/O Accessory
Complete the following steps to install the Power and I/O Accessory:
1. Install the NI 177x Smart Camera and required software.
Caution Never touch the exposed pins of connectors.
2. Connect the included cable to the CAMERA connector on the Power and I/O Accessory
and the I/O connector on the NI 177x Smart Camera.
3. Connect signal wires to the spring terminals on the Power and I/O Accessory:
a. Strip 1/4 in. of insulation from the signal wire.
b. Depress the lever of the spring terminal.
c. Insert the wire into the terminal.
Refer to the spring terminal labels and the Signal Descriptions section for a description of
each signal.
Caution Do not connect input voltages greater than 24 VDC to the Power and I/O
Accessory. Input voltages greater than 24 VDC can damage the accessory, all devices
connected to it, and the host computer. National Instruments is not liable for damage
or injury resulting from such misuse.

©National Instruments Corporation 3 NI 177x Power and I/O Acessory User Guide
4. Connect the power supply to the 24 V IN connector on the Power and I/O Accessory.
5. Connect the power supply to a power source.
Testing and Replacing Fuses
The Power and I/O Accessory has seven replaceable fuses. For fuse and spare fuse locations,
refer to Figure 2. For a description of the included fuses, refer to Table 1.
Figure 2. Fuse Locations
You can use a handheld DMM to verify the continuity of a fuse.
Complete the following steps to replace a blown fuse:
1. Unplug the power supply.
2. Remove all signal wires and cables from the Power and I/O Accessory.
3. Remove a side panel. Use a Phillips head screwdriver to remove the 2 retaining screws.
4. Slide the circuit board out.
5. Replace any blown fuses with an equivalent replacement fuse. Replacement fuses are
labelled as SPARE on the circuit board.
Table 1. Power and I/O Accessory Fuses
Protected Signal
Replacement
Fuse Quantity
Littelfuse
Part Number Fuse Description
24 V IN 10448002.MR 2 A, 125V lead-free very fast-acting
NANO2subminiature ceramic surface
mount fuse, 6.10 × 2.69 mm
RS232, LED DRV,
OUT0, OUT1,
OUT2, OUT3
30448001.MR 1 A, 125V lead-free very fast-acting
NANO2subminiature ceramic surface
mount fuse, 6.10 × 2.69 mm
2
4V IN
4V IN
2A
2A
P
CB476R0
CB476R0
S
PARE FUSES
PARE FUSES 1A
A
I
I – 5 – 0
9
4V-0
4V-0
27-11
R
S232 1A
S232 1A
S
PAR E
PARE
2A
2A
L
ED DRV 1A
ED DRV 1A
O
UT3 1A
UT3 1A
O
UT2 1A
UT2 1A
O
UT1 1A
UT1 1A
O
UT0 1A
UT0 1A

NI 177x Power and I/O Acessory User Guide 4ni.com
Signal Descriptions
Refer to the NI 177x Smart Camera User Manual for detailed signal descriptions.
Table 2. I/O Connector Signals
Signal Name Function
IN0 Opto-coupled auxiliary input signal 0.*
IN1 Opto-coupled auxiliary input signal 1.*
IN2 Opto-coupled auxiliary input signal 2.*
IN3 Opto-coupled auxiliary input signal 3.*
TRIGIN Opto-isolated trigger input signal.
24 V IN Supplies power to the accessory and smart camera.
OUT0 Open collector ouput signal 0.
Provides an exposure signal generated using exposure timer 1 or trigger signal bypass.
OUT1 Open collector output signal 1.
Provides an exposure signal, trigger signal bypass, or programmable unmodulated
strobe signal generated using exposure timer 2.
OUT2 Open collector output signal 2.
OUT3 Open collector output signal 3.
LED DRV Controlled-current output, designed to be connected to a LED lighting device (0 to
500 mA, generated using exposure timer 2).
24 V OUT Power supply output.
SAFE MODE Initializes the camera in safe mode.
* The negative component of this signal is internally connected to the power supply GND.

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373579A-01 Sep11
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