PXIe-2512 Specifications

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Last Modified: April 7, 2017

This document lists specifications for the PXIe-2512 ( PXIe-2512) fault insertion unit (FIU) switch module. All specifications are subject to change without notice. Visit ni.com/manuals for the most current specifications.

Topology

Independent

Refer to the NI Switches Help for detailed topology information.

Caution

The protection provided by the PXIe-2512 can be impaired if it is used in a manner not described in this document.

About These Specifications

Specifications characterize the warranted performance of the instrument under the following operating conditions:

The PXI/PXIe chassis fan speed is set to High.
The fan filters are clean.
The empty slots contain filler panels.

For more information, refer to the Maintain Forced-Air Cooling Note to Users document available at ni.com/manuals.

Typical specifications are specifications met by the majority of the instruments under the stated operating conditions. Typical specifications are not warranted.

Data provided in this document are specifications unless otherwise noted.

Input Characteristics

All input characteristics are DC, AC_rms, or a combination unless otherwise specified.

Maximum switching voltage

50 VDC, 30 V AC_rms, CAT I^[1]

Caution

Steady state voltages applied to the PXIe-2512 between any two I/O connector pins in excess of the maximum switching voltage specification may damage this module.

Caution

This module is rated for Measurement Category I and intended to carry signal voltages no greater than 30 V_rms/42 V_pk/50 VDC. 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 or 230 VAC.

Note

Signal connections through the PXIe-2512 are intended to go through the DUTn pin connections. Signal paths that do not use the DUTn pin connections may exceed the module’s thermal capabilities. Refer to the connector pinout in the Diagrams section of this document for DUTn pin connections.

Maximum continuous current	10 A (per channel or common, switching or carry)
Maximum pulsed current	50 A (for 600 μs max)

Caution

The maximum switching power is limited by the maximum switching current and the maximum voltage, and must not exceed 500 W.

Maximum switching power (per channel)

500 W

Use the following equation to determine the Maximum Possible Pulse Width (seconds) for a given Maximum Inrush Current “peak” amplitude (Amps) and Steady State Current (Amps).

MaxPulseWidth = \frac{1.512 - 0.01 \cdot (I_{SteadyState})^{2}}{(I_{PeakInrush})^{2}}

DC path resistance
Typical	16 mΩ
Maximum	35 mΩ

Typical bandwidth (50 Ω system)

>800 kHz

Overcurrent Detection

Overcurrent detection limit	10.5 A typical
Overcurrent detection delay	20 ms

Note

After a switch operation, an overcurrent error condition occurs when both the overcurrent limit of the module is exceeded, and the overcurrent delay time has expired.

Overtemperature Detection

To help protect against fault conditions, the PXIe-2512 incorporates circuitry to detect overtemperature conditions.

Note

Exceeding the module’s thermal limit induces an overtemperature condition.

Note

Overtemperature conditions are created when excessive power is dissipated in the channel paths such as when switching large impulses created by switching into capacitive or inductive loads or when switching a signal at a higher rate than the module dissipates the generated heat. Refer to the figures below for information about the maximum cycle rate.

The Switching Current Waveform graph indicates where on the inrush waveform you can find the parameters necessary for determining maximum cycle rate.

Figure 1. Switching Current Waveform

Figure 2. Maximum Cycle Rate

Figure 3. Maximum Cycle Rate Derating Factor by Pulse Width

Determining the Maximum Cycle Rate

Complete the following steps and use the figures above to determine the maximum cycle rate at which a channel can be switched when the peak impulse current value and duration are known.

Using the Maximum Cycle Rate graph, choose the graph line that meets or exceeds the peak inrush current value of the signal being switched. Find the point on the trace that equates to the steady state current being switched by the load.
Find the corresponding intersection on the y-axis which indicates the maximum cycle rate allowed for a signal with a 50 μs maximum inrush pulse duration.
Find the point on the Maximum Cycle Rate Derating Factor by Pulse Width graph that corresponds to the measured pulse width of the inrush current pulse. Find the corresponding derating factor.
Then calculate the maximum cycle rate using the following equation:
$MaxCycleRate = C R 50_{μ s} \cdot D F (H z)$

where CR₅₀_μs = max cycle rate for a 50 μs wide inrush current pulse in Hz

DF = derating factor

Note
If the peak impulse current does not exceed 10 A, do not derate the maximum cycle rate below 220 Hz.

For switching a steady state current of 4 A into a load with peak inrush current of 45 A that lasts for 400 μs, choose the 50 A graph line in the Maximum Cycle Rate graph. Find the y-axis value that corresponds to the 4 A load current (650 Hz). Then find the derating factor in the Maximum Cycle Rate Derating Factor by Pulse Width graph that corresponds to 400 μs (0.1).

The maximum cycle rate at which this signal can be switched by the module is calculated as follows:

MaxCycleRate = 650 H z \cdot 0.1 ≅ 65 H z

Dynamic Characteristics

Relay Operate Time
Typical	8 μs
Maximum	35 μs

Note

Certain applications may require additional time for proper settling. Refer to the NI Switches Help at ni.com/manuals for more information about including additional settling time.

Typical relay life

Unlimited, when operated within specified limits

Trigger Characteristics

Input trigger
Sources	PXI trigger lines <0...7>
Minimum pulse width	150 ns

Note

The PXIe-2512 can recognize trigger pulse widths less than 150 ns if you disable digital filtering. Refer to the NI Switches Help at ni.com/manuals for information about disabling digital filtering.

Output trigger
Destinations	PXI trigger lines <0...7>
Pulse width	Programmable (1 µs to 62 µs)

Physical Characteristics

Relay type

FET

Front panel connector

2 DSUB, 8 positions, male

Power requirement

PXI
3.3 V	1.0 W
5 V	13.0 W

PXI Express
+12 V	14.7 W
3.3 V	1.4 W

Dimensions (L × W × H)

3U, two slots, PXI/cPCI module, PXI Express compatible 21.6 cm × 4.1 cm × 13.0 cm (8.5 in. × 1.6 in. × 5.1 in.)

Weight

403 g (14.2 oz)

Environment

Operating temperature	0 °C to 50 °C
Storage temperature	-40 °C to 70 °C
Relative humidity	5% to 85%, noncondensing
Pollution Degree	2
Maximum altitude	2,000 m

Indoor use only.

Shock and Vibration

Operational Shock

30 g peak, half-sine, 11 ms pulse (Tested in accordance with IEC 60068-2-27. Test profile developed in accordance with MIL-PRF-28800F.)

Random Vibration
Operating	5 Hz to 500 Hz, 0.3 g_rms
Nonoperating	5 Hz to 500 Hz, 2.4 g_rms (Tested in accordance with IEC 60068-2-64. Nonoperating test profile exceeds the requirements of MIL-PRF-28800F, Class 3.)

Compliance and Certifications

Safety

This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

IEC 61010-1, EN 61010-1
UL 61010-1, CSA 61010-1

Note

For UL and other safety certifications, refer to the product label or the Online Product Certification section.

Electromagnetic Compatibility

This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:

EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
EN 55011 (CISPR 11): Group 1, Class A emissions
EN 55022 (CISPR 22): Class A emissions
EN 55024 (CISPR 24): Immunity
AS/NZS CISPR 11: Group 1, Class A emissions
AS/NZS CISPR 22: Class A emissions
FCC 47 CFR Part 15B: Class A emissions
ICES-001: Class A emissions

Note

In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia, and New Zealand (per CISPR 11), Class A equipment is intended for use only in heavy-industrial locations.

Note

Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.

Note

For EMC declarations, certifications, and additional information, refer to the Online Product Certification section.

CE Compliance

This product meets the essential requirements of applicable European Directives, as follows:

2014/35/EU; Low-Voltage Directive (safety)
2014/30/EU; Electromagnetic Compatibility Directive (EMC)

Online Product Certification

Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.

Environmental Management

NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

For additional environmental information, refer to the Minimize Our Environmental Impact web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

Waste Electrical and Electronic Equipment (WEEE)

EU Customers

At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit ni.com/environment/weee.

电子信息产品污染控制管理办法（中国RoHS）

中国客户

National Instruments符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于National Instruments中国RoHS合规性信息，请登录 ni.com/environment/rohs_china。(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)

¹ Measurement Categories CAT I and CAT O (Other) are equivalent. These test and measurement circuits are not intended for direct connection to the MAINs building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Table Of Contents

About These Specifications

Input Characteristics

Overcurrent Detection

Overtemperature Detection

Determining the Maximum Cycle Rate

Dynamic Characteristics

Trigger Characteristics

Physical Characteristics

Environment

Shock and Vibration

Compliance and Certifications

Safety

Electromagnetic Compatibility

CE Compliance

Online Product Certification

Environmental Management

Waste Electrical and Electronic Equipment (WEEE)

电子信息产品污染控制管理办法（中国RoHS）

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