National Instruments PXIe-4135 User manual

GETTING STARTED GUIDE
PXIe-4135
Single-Channel Precision System Source Measure Unit (SMU)
Note Before you begin, install and configure your chassis and controller.
This document explains how to install, configure, and test the PXIe-4135. The PXIe-4135 is a
single-channel precision system SMU.
To access PXIe-4135 documentation, navigate to Start»All Programs»National
Instruments»NI-DCPower»Documentation.
Caution Do not operate the PXIe-4135 in a manner not specified in this document.
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 NI for repair.
Contents
Electromagnetic Compatibility Guidelines...............................................................................2
Safety Guidelines for Hazardous Voltages................................................................................2
Verifying the System Requirements..........................................................................................2
Unpacking the Kit..................................................................................................................... 3
Kit Contents.............................................................................................................................. 4
Other Equipment............................................................................................................... 4
Preparing the Environment....................................................................................................... 5
Installing the Software.............................................................................................................. 5
Safety........................................................................................................................................ 6
System Safety Guidelines......................................................................................................... 6
Safety Guidelines for System Design and Implementation.............................................. 6
Safety Guidelines for System Operation...........................................................................7
Installing the PXIe-4135........................................................................................................... 8
PXIe-4135 Front Panel............................................................................................................11
Accessories..............................................................................................................................12
Configuring the PXIe-4135 in MAX...................................................................................... 12
Testing the Safety Interlock.................................................................................................... 13
Testing with an Application Development Environment................................................13
Testing with the NI-DCPower Soft Front Panel............................................................. 13
Programming the PXIe-4135.................................................................................................. 15
Troubleshooting...................................................................................................................... 15
What Should I Do if the PXIe-4135 Doesn't Appear in MAX?......................................15
Why Is the ACCESS LED Off When the Chassis Is On?...............................................16

Where To Go Next.................................................................................................................. 17
Worldwide Support and Services............................................................................................ 17
Electromagnetic Compatibility Guidelines
This product was tested and complies with the regulatory requirements and limits for
electromagnetic compatibility (EMC) stated in the product specifications. These requirements
and limits provide reasonable protection against harmful interference when the product is
operated in the intended operational electromagnetic environment.
This product is intended for use in industrial locations. However, harmful interference may
occur in some installations, when the product is connected to a peripheral device or test object,
or if the product is used in residential or commercial areas. To minimize interference with
radio and television reception and prevent unacceptable performance degradation, install and
use this product in strict accordance with the instructions in the product documentation.
Furthermore, any changes or modifications to the product not expressly approved by National
Instruments could void your authority to operate it under your local regulatory rules.
Caution To ensure the specified EMC performance, operate this product only with
shielded cables and accessories connected to the LO/Sense LO, Output HI, and
Sense HI connectors. Only twisted, shielded pair cable (i.e. Belden 83321E) should
be used to connect the signals of the LO/Sense LO connector. Any compatible
unshielded twisted-pair cable may be used for the safety interlock connector.
Caution To ensure the specified EMC performance, the length of all I/O cables
must be no longer than 3 m (10 ft).
Safety Guidelines for Hazardous Voltages
If hazardous voltages are connected to the device, take the following precautions. A hazardous
voltage is a voltage greater than 42.4 Vpk voltage or 60 VDC to earth ground.
Caution This module is rated for Measurement Category I. It is intended to carry
signal voltages no greater than 250 V DC. This module can withstand up to
500 V DC impulse voltage. Do not use this module for connection to signals or for
measurements within Categories II, III, or IV. Do not connect to MAINS supply
circuits (for example, wall outlets) of 115 V AC or 230 V AC.
Caution Isolation voltage ratings apply to the voltage measured between any
channel pin and the chassis ground. When operating channels in series or floating on
top of external voltage references, ensure that no terminal exceeds this rating.
Verifying the System Requirements
To use the NI-DCPower instrument driver, your system must meet certain requirements.
2| ni.com | PXIe-4135 Getting Started Guide

Refer to the product readme, which is available on the driver software media or online at
ni.com/manuals, for more information about minimum system requirements, recommended
system, and supported application development environments (ADEs).
Unpacking the Kit
Caution To prevent electrostatic discharge (ESD) from damaging the device,
ground yourself using a grounding strap or by holding a grounded object, such as
your computer chassis.
1. Touch the antistatic package to a metal part of the computer chassis.
2. Remove the device from the package and inspect the device for loose components or any
other sign of damage.
Caution Never touch the exposed pins of connectors.
Note Do not install a device if it appears damaged in any way.
3. Unpack any other items and documentation from the kit.
Store the device in the antistatic package when the device is not in use.
PXIe-4135 Getting Started Guide | © National Instruments | 3

Kit Contents
Figure 1. PXIe-4135 Kit Contents
43 56
1
NIPXIe-4135
PrecisionSystem SMU
2
1. PXIe-4135 Precision System SMU with triax caps
installed
2. LO/Sense LO Output Connector Assembly
3. Safety Interlock Input Connector
4. Driver Software DVD
5. PXIe-4135 Getting Started Guide (this document)
6. Maintain Forced-Air Cooling Note to Users
Other Equipment
There are several required items not included in your device kit that you need to operate the
PXIe-4135. Your application may require additional items not included in your kit to install or
operate your device.
Required Items
• A PXI Express chassis and chassis documentation. For more information about
compatible chassis options, refer to ni.com.
• A PXI Express embedded controller or MXI controller system that meets the system
requirements specified in this guide and chassis documentation.
• One or more triaxial cable assemblies.
Optional Items
• NI screwdriver (part number 781015-01).
4| ni.com | PXIe-4135 Getting Started Guide

Preparing the Environment
Ensure that the environment you are using the PXIe-4135 in meets the following
specifications.
Operating Environment
Ambient temperature range 0 °C to 55 °C (Tested in accordance with
IEC 60068-2-1 and IEC 60068-2-2. Meets
MIL-PRF-28800F Class 3 low temperature
limit and MIL-PRF-28800F Class 2 high
temperature limit.)
Relative humidity range 10% to 90%, noncondensing (Tested in
accordance with IEC 60068-2-56.)
Storage ambient temperature range -40 °C to 70 °C (Tested in accordance
with IEC 60068-2-1 and IEC 60068-2-2.)
Maximum altitude 2,000 m (800 mbar) (at 25 °C ambient
temperature)
Pollution Degree 2
Indoor use only.
Note Refer to the device specifications on ni.com/manuals for complete
specifications.
Installing the Software
You must be an Administrator to install NI software on your computer.
1. Install an ADE, such as LabVIEW or LabWindows™/CVI™.
2. Insert the driver software media into your computer. The installer should open
automatically.
If the installation window does not appear, navigate to the drive, double-click it, and
double-click autorun.exe.
3. Follow the instructions in the installation prompts.
Note Windows users may see access and security messages during
installation. Accept the prompts to complete the installation.
4. When the installer completes, select Restart in the dialog box that prompts you to restart,
shut down, or restart later.
PXIe-4135 Getting Started Guide | © National Instruments | 5

Safety
Caution Always refer to the specifications document for your device before
connecting signals. Failure to observe the specified maximum signal ratings can
cause shock, a fire hazard, or damage to the devices connected to the PXIe-4135. NI
is not liable for any damage or injuries resulting from incorrect signal connections.
System Safety Guidelines
Safety Guidelines for System Design and
Implementation
The PXIe-4135 is capable of generating hazardous voltages and working within hazardous
voltage systems. It is the responsibility of the system designer, integrator, installer,
maintenance personnel, and service personnel to ensure the system is safe during use.
• Ensure operators cannot access the PXIe-4135, cables, the device under test (DUT), or
any other instruments in the system while hazardous voltages are present.
• Operator access points can include, but are not limited to, guards, gates, sliding doors,
hinge doors, lids, covers, and light curtains.
• If using a test fixture enclosure, ensure that it is properly connected to safety ground.
• Ensure that the PXIe-4135 is properly secured to the chassis using the two front panel
mounting screws.
• Double insulate all electrical connections that are accessible by an operator. Double
insulation ensures protection if one layer of insulation fails. Refer to IEC 61010-1 for
specific insulation requirements.
Safety Interlock System Integration
The PXIe-4135 includes a safety interlock circuit that places the outputs of the SMU in a safe
state, regardless of the programmed state of the module.
• Do not short the safety interlock pins directly at the connector under any circumstances.
• Confirm on a regular basis that the safety interlock is functioning by performing a safety
interlock test.
• Install mechanical detection switches that open the safety interlock circuit when the
operator attempts to access the test fixture, disabling the hazardous voltage ranges of the
instrument.
• Ensure the mechanical detection switches close the safety interlock circuit only when the
operator has properly closed all entry points to the test fixture enclosure, enabling
hazardous voltage ranges on the instrument.
6| ni.com | PXIe-4135 Getting Started Guide

Figure 2. System Level Connection, Typical
1
2
Safety Interlock Connector
Test Fixture Enclosure
Operator Access Door
Mechanical Detection Switches
Mechanical detection switch is actuated
by operator access point
3
4
1. Safety Interlock Input
2. Safety Interlock Ground
3. Safety Interlock Pass Thru - Input
4. Safety Interlock Pass Thru - Ground
Related Information
Fore more information about the Safety Interlock, refer to the NI DC Power Supplies and
SMUs Help.
Testing the Safety Interlock on page 13
Mechanical Detection Switch Recommendations
• Use high-reliability, fail-safe, normally open mechanical detection switches on all access
points to the test fixture enclosure.
• Use two normally open switches wired in series so that a single switch failure does not
compromise safety protections.
• Isolate switches so the operator cannot trigger or bypass the switches without the use of a
tool.
• Ensure the switches' certifications meet your test application requirements. NI
recommends UL-certified safety switches to ensure reliability.
• Install the switches in accordance with the switch manufacturer specifications.
• Test the switches periodically to ensure proper implementation and reliability.
Safety Guidelines for System Operation
Caution Hazardous voltages of up to the maximum voltage of the PXIe-4135 may
appear at the output terminals if the safety interlock terminal is closed. Open the
safety interlock terminal when the output connections are accessible. With the safety
interlock terminal open, the output voltage level/limit is limited to ±40 V DC, and
PXIe-4135 Getting Started Guide | © National Instruments | 7

protection will be triggered if the voltage measured between the device HI and LO
terminals exceeds ±(42 Vpk ±0.4 V).
Caution Do not apply voltage to the safety interlock connector inputs. The
interlock connector is designed to accept passive, normally open contact closure
connections only.
To ensure a system containing the PXIe-4135 is safe for operators, components, or conductors,
take the following safety precautions:
• Ensure proper warnings and signage exist for workers in the area of operation.
• Provide training to all system operators so that they understand the potential hazards and
how to protect themselves.
• Inspect connectors, cables, switches, and any test probes for any wear or cracking before
each use.
• Before touching any of the connections to the high terminal or high sense on the
PXIe-4135, discharge all components connected to the measurement path. Verify with a
DMM before interaction with connections.
Installing the PXIe-4135
Caution To prevent damage to the PXIe-4135 caused by ESD or contamination,
handle the module using the edges or the metal bracket.
1. Ensure the AC power source is connected to the chassis before installing the module.
The AC power cord grounds the chassis and protects it from electrical damage while you
install the module.
2. Power off the chassis.
3. Inspect the slot pins on the chassis backplane for any bends or damage prior to
installation. Do not install a module if the backplane is damaged.
4. Remove the black plastic covers from all the captive screws on the module front panel.
5. Identify a supported slot in the chassis. The following figure shows the symbols that
indicate the slot types.
Figure 3. Chassis Compatibility Symbols
NI PXIe-1062Q
1
2
3
4
5
1. PXI Express System Controller Slot
2. PXI Peripheral Slot
3. PXI Express Hybrid Peripheral Slot
4. PXI Express System Timing Slot
5. PXI Express Peripheral Slot
PXIe-4135 modules can be placed in PXI Express peripheral slots, PXI Express hybrid
peripheral slots, or PXI Express system timing slots.
8| ni.com | PXIe-4135 Getting Started Guide

6. Touch any metal part of the chassis to discharge static electricity.
7. Ensure that the ejector handle is in the downward (unlatched) position.
8. Place the module edges into the module guides at the top and bottom of the chassis. Slide
the module into the slot until it is fully inserted.
Figure 4. Module Installation
2
3
NI PXIe-1075
1
1. Chassis
2. Hardware Module
3. Ejector Handle in Downward (Unlatched) Position
9. Latch the module in place by pulling up on the ejector handle.
10. Secure the module front panel to the chassis using the front-panel mounting screws.
Note Tightening the top and bottom mounting screws increases mechanical
stability and also electrically connects the front panel to the chassis, which can
improve the signal quality and electromagnetic performance.
11. Cover all empty slots using EMC filler panels or fill using slot blockers to maximize
cooling air flow, depending on your application.
12. Prepare the LO/Sense LO connector assembly.
Caution To ensure specified EMC performance, only use twisted, shielded
pair cable (for example, Belden 83321E).
a) Open the LO/Sense LO connector assembly.
b) Use an insulation strip tool to expose the LO, sense LO, and ground cable
conductors. The maximum strip length for the LO and sense LO cable is 10 mm
(0.394 in.).
c) Insert each cable into the appropriate connector terminal. The cable drain wire
should be terminated to the connector ground terminal.
d) Inspect the connection to the connector terminals to ensure no exposed metal is
visible on the LO and sense LO cables beyond the body of the connector.
e) Clamp down using the screw terminals on the connector.
f) Verify that no exposed shield foil or braid extends outside of the backshell.
PXIe-4135 Getting Started Guide | © National Instruments | 9

g) Use the cable tie to provide strain relief for the cable to the backshell.
h) Close the LO/sense LO connector assembly and tighten the retention screw to hold it
in place.
13. Attach output connections.
a) Connect the triaxial cables to the module.
b) Connect the LO/sense LO connector assembly to the module. Tighten the
thumbscrew on the connector assembly to hold it in place.
14. Ensure that the safety interlock connector is wired to a test fixture that ensures operator
safety, and prepare the safety interlock cable for insertion into the safety interlock
connector.
a) Measure and mark your strip length on the safety interlock cable.
Note The required wire strip length for the safety interlock cable is
7.5 mm (0.295 in.) minimum and 10 mm (0.394 in.) absolute maximum.
The acceptable AWG range for the safety interlock cable is 16-24.
b) Use an insulation strip tool to expose cable of the appropriate length.
c) The safety interlock connector accepts both solid and multi-strand conductor
cabling. If you are using a multi-stranded cable, twist the strands together before
insertion. For additional cabling reliability, strip and tin multi-stranded conductors
before insertion.
d) Insert the cable.
e) Inspect for loose strands and tighten any retention screws on the safety interlock
connector assembly to hold it in place.
f) Connect the safety interlock connector to the device.
15. Power on the chassis.
16. Perform the safety interlock test.
Related Information
Testing the Safety Interlock on page 13
10 | ni.com | PXIe-4135 Getting Started Guide

PXIe-4135 Front Panel
Figure 5. PXIe-4135 Front Panel
ACCESS VOLTAGE
LO
HI
GUARD
GUARD
INT.
PASS-
THRU
SENSE
LO
SENSE HI
SAFETY INTERLOCK
3.3 V MAX
OUTPUT
±200 V , 1 A,
3 A Pulse MAX
250 V MAX to
PXIe-4135
Precision System SMU
A
C
D
E
B
K
M
J
L
F
H
I G
PXIe-4135 Getting Started Guide | © National Instruments | 11

Table 1. Front Panel Connectors
Description
A Access Status LED
B Voltage Status LED
C Chassis ground
D Output LO
E Sense LO
F Triaxial connector pin Output HI
G Triaxial connector inner shield, Guard
H Triaxial connector pin, Sense HI
I Triaxial connector outer shield, Chassis ground
J Safety Interlock Input
K Safety Interlock Pass Thru - Input
L Safety Interlock Ground
M Safety Interlock Pass Thru - Ground
Accessories
Table 2. PXIe-4135 Accessories
Accessory Manufacturer Part Number
Additional Connector Kit with Interlock Connector for
PXIe-4135 SMU
NI 784484-01
Safety Interlock Connector Phoenix Contact 1790292
Configuring the PXIe-4135 in MAX
Use Measurement & Automation Explorer (MAX) to configure your NI hardware. MAX
informs other programs about which NI hardware products are in the system and how they are
configured. MAX is automatically installed with NI-DCPower.
1. Launch MAX.
2. In the configuration tree, expand Devices and Interfaces to see the list of installed NI
hardware.
12 | ni.com | PXIe-4135 Getting Started Guide

Installed modules appear under the name of their associated chassis.
3. Expand your Chassis tree item.
MAX lists all modules installed in the chassis. Your default names may vary.
Note If you do not see your module listed, press <F5> to refresh the list of
installed modules. If the module is still not listed, power off the system, ensure
the module is correctly installed, and restart.
4. Record the identifier MAX assigns to the hardware. Use this identifier when
programming the PXIe-4135.
5. Self-test the hardware by selecting the item in the configuration tree and clicking Self-
Test in the MAX toolbar.
The MAX self-test performs a basic verification of hardware resources.
Testing the Safety Interlock
To ensure safe operation of the PXIe-4135, periodically test the safety interlock for proper
functionality. The recommended test interval is at least once per day of continuous usage.
Testing with an Application Development Environment
1. Disconnect the output connector from the PXIe-4135 front panel.
2. Ensure that the safety interlock input on the test fixture is closed.
3. Set the niDCPower Output Function property or NIDCPOWER_OUTPUT_FUNCTION
attribute to DC Voltage for the PXIe-4135.
4. Set the voltage level range to 200 V, and set the voltage level to 42.4 V.
5. Set the current limit range to 1 mA, and set the current limit to 1 mA.
6. Initiate the session.
7. Verify that the Voltage Status Indicator is amber.
8. Open the safety interlock input using the test fixture.
9. Verify that the Voltage Status Indicator is red.
10. Reset the device using the niDCPower Reset VI or the niDCPower Reset function.
11. Verify that the Voltage Status Indicator is green.
Caution If the PXIe-4135 fails the safety interlock test, discontinue use of the
device and contact an authorized NI service representative to request a Return
Material Authorization (RMA).
Testing with the NI-DCPower Soft Front Panel
1. Disconnect the output connector from the PXIe-4135 front panel.
2. Ensure that the safety interlock input on the test fixture is closed.
3. In the NI-DCPower SFP, set Output Function to DC Voltage.
4. Set Voltage Level Range to 200 V, and set Voltage Level to 42.4 V.
PXIe-4135 Getting Started Guide | © National Instruments | 13

5. Set Current Limit to 1 mA, and set Current Limit Range to 1 mA.
6. Ensure that Local sense is selected.
7. Check the Output Enabled checkbox to enable the output.
8. Verify that the Voltage Status Indicator is amber.
9. Open the safety interlock input using the test fixture.
10. Verify that the Voltage Status Indicator is red and that a hazardous voltage error message
appears.
11. On the error message dialog, click OK to prompt the PXIe-4135 to attempt to clear the
error and re-initialize the session to default values.
12. Verify that the Voltage Status Indicator is green.
Caution If the PXIe-4135 fails the safety interlock test, discontinue use of the
device and contact an authorized NI service representative to request a Return
Material Authorization (RMA).
14 | ni.com | PXIe-4135 Getting Started Guide

Programming the PXIe-4135
You can generate signals interactively using the NI-DCPower Soft Front Panel (SFP) or you
can use the NI-DCPower instrument driver to program your device in the supported ADE of
your choice.
Table 3. PXIe-4135 Programming Options
Application
Programming
Interface (API)
Location Description
NI-DCPower SFP Available from the start menu
at Start»All Programs»
National Instruments»
NI-DCPower»NI-DCPower
Soft Front Panel.
The NI-DCPower SFP acquires,
controls, and presents data. The NI-
DCPower SFP operates on the PC, to
provide additional display
capabilities.
NI-DCPower
Instrument Driver
LabVIEW—Available on the
LabVIEW Functions palette at
Measurement I/O»
NI-DCPower.
NI-DCPower configures and operates
the device hardware and performs
basic acquisition and measurement
options using LabVIEW VIs or
LabWindows/CVI functions.
C or LabWindows/CVI—
Available at Program Files»
IVI Foundation»IVI»
Drivers»NI-DCPower.
Microsoft Visual C/C++—NI-
DCPower does not ship with
installed C/C++ examples.
Refer to the Creating an Application
with Microsoft Visual C and C++
topic of the NI DC Power Supplies
and SMUs Help to manually add all
required include and library files to
your project.
Troubleshooting
If an issue persists after you complete a troubleshooting procedure, contact NI technical
support or visit ni.com/support.
What Should I Do if the PXIe-4135 Doesn't Appear in
MAX?
1. In the MAX configuration tree, expand Devices and Interfaces.
2. Expand the Chassis tree to see the list of installed hardware, and press <F5> to refresh
the list.
3. If the module is still not listed, power off the system, ensure that all hardware is correctly
installed, and restart the system.
PXIe-4135 Getting Started Guide | © National Instruments | 15

4. Navigate to the Device Manager.
Operating System Description
Windows 10/8.1 Right-click the Start button, and select Device Manager.
Windows 7 Select Start»Control Panel»Device Manager.
5. If you are using a PXI or PXI Express controller, verify that a National Instruments
entry appears in the System Devices list. Reinstall NI-DCPower and the module if error
conditions appear in the list. If you are using an MXI controller, right-click PCI-to-PCI
Bridge, and select Properties from the shortcut menu to verify that the bridge is enabled.
Why Is the ACCESS LED Off When the Chassis Is
On?
The LEDs may not illuminate until the module has been configured in MAX. Before
proceeding, verify that the PXIe-4135 appears in MAX.
If the ACCESS LED fails to illuminate after you power on the PXI Express chassis, a problem
may exist with the PXI Express power rails, a hardware module, or the LED.
1. Caution Apply external signals only while the PXIe-4135 is powered on.
Applying external signals while the module is powered off may cause damage.
Disconnect any signals from the PXI Express module front panels.
2. Remove any front panel connections from the PXIe-4135.
3. Power off the PXI Express chassis.
4. Remove the module from the PXI Express chassis and inspect it for damage. Do not
reinstall a damaged module.
5. Install the module in a different PXI Express chassis slot from which you removed it.
6. Power on the PXI Express chassis.
7. Verify that the module appears in MAX.
8. Reset the module in MAX and perform a self-test.
If the ACCESS LED still fails to illuminate and failures continue, contact NI technical support
or visit ni.com/support.
Related Information
For more information about LED status indicator behavior, see the front panel topic for your
device in the NI DC Power Supplies and SMUs Help.
16 | ni.com | PXIe-4135 Getting Started Guide

Where To Go Next
custom applications with
an application programming
interface (API).
NI-DCPower Soft Front Panel
NI-DCPower Instrument Driver
about hardware features
or review device
specifications.
more about your products through ni.com.
the application
development environment (ADE)
for your application.
Getting Started
with LabVIEW
Getting Started with
LabWindows/CVI
NI DC Power Supplies
and SMUs Help*
NI DC Power Supplies
and SMUs Help*
NI-DCPower Examples*
*This item is also installed with the driver software.
Located online at ni.com/manuals Located using the NI Example Finder
EXPLORE LEARN CREATE
DISCOVER
Support
ni.com/support
Services
ni.com/services
PXIe-4135 Specifications*
NI Community
ni.com/community
Power Supplies
Solutions
ni.com/powersupplies
Worldwide Support and Services
The NI website is your complete resource for technical support. At ni.com/support, you have
access to everything from troubleshooting and application development self-help resources to
email and phone assistance from NI Application Engineers.
Visit ni.com/services for NI Factory Installation Services, repairs, extended warranty, and
other services.
Visit ni.com/register to register your NI product. Product registration facilitates technical
support and ensures that you receive important information updates from NI.
A Declaration of Conformity (DoC) is our claim of compliance with the Council of the
European Communities using the manufacturer’s declaration of conformity. This system
affords the user protection for electromagnetic compatibility (EMC) and product safety. You
can obtain the DoC for your product by visiting ni.com/certification. If your product supports
calibration, you can obtain the calibration certificate for your product at ni.com/calibration.
PXIe-4135 Getting Started Guide | © National Instruments | 17

NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas,
78759-3504. NI also has offices located around the world. For telephone support in the United
States, create your service request at ni.com/support or dial 1 866 ASK MYNI (275 6964). For
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© 2016 National Instruments. All rights reserved.
374873B-01 Aug16