NI-9350 Specifications

Definitions

Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

Typical specifications describe the performance met by a majority of models.
Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.

Specifications are Typical unless otherwise noted.

Conditions

Specifications are valid for the range -40 °C to 70 °C unless otherwise noted.

Environmental Characteristics

Temperature
Operating	-40 °C to 70 °C
Storage	-40 °C to 85 °C

Humidity
Operating	10% RH to 90% RH, noncondensing
Storage	5% RH to 95% RH, noncondensing

Ingress protection

IP40

Pollution Degree

2

Maximum altitude

5,000 m

Shock and Vibration

Operating vibration
Random	5 g RMS, 10 Hz to 500 Hz
Sinusoidal	5 g, 10 Hz to 500 Hz

Operating shock

30 g, 11 ms half sine; 50 g, 3 ms half sine; 18 shocks at 6 orientations

To meet these shock and vibration specifications, you must panel mount the system.

Functional Safety Standards

This product is designed for Functional Safety applications and meets the following standards:

IEC/EN 61508:2010; Functional Safety of Electrical Systems, Second Edition
IEC/EN 62061; Safety of Machinery
IEC/EN 61511; Safety Instrumented Systems for the Process Industry Sector

Functional Safety Certification

Safety Integrity Level

SIL3 (IEC 61508)

Hardware fault tolerance

0

Useful lifetime
At 55 °C	20 years
At 70 °C	10 years

Table 1. IEC 61508 Failure Rates in FIT^[1]¹ 1 FIT = 1 failure/10⁹ hours
Failure Categories	λ_SD	λ_SU	λ_DD	λ_DU
Common, sea level	419	10	282	10
Common, 2,000 m	858	11	720	10
Common, 5,000 m	4,100	14	3,970	13
DI common	7.0	0.1	19	0.2
DI per channel	14	2.2	15	0.5
DO per channel	39	0.7	0.2	0.2

NI-9350 Block Diagram

Input/Output Characteristics

Number of channels

8 digital input, 8 digital output

Digital Input

Input type

Sinking

Input voltage range

0 V to 30 V

Digital logic levels

OFF
Input voltage	≤6.0 V

ON
Input voltage	≥11.0 V
Input current at 24 V	1.1 mA

Hysteresis

3.0 V

Digital input sinking current

Refer to the following figure.

Input voltage protection

±30 V DC

Input Signal Response Time

Note For more information on how to calculate input signal response times, refer to the C Series Functional Safety Manual on ni.com/manuals.

Input signal response time (1 to 0)
Single or dual input	57 µs
Single or dual input with test pulses	165 µs

Note Input signal response time (1 to 0) assumes a 3 kΩ external pull-down, 50 m cable length with capacitance <180 pF/m, and the debounce filter and test pulse width set to the minimum values for the given configuration.

Input signal response time (0 to 1)
Single input	20 µs
Dual input	122 µs
Single input with test pulses	346 µs
Dual input with test pulses	649 µs

Note Input signal response time (0 to 1) assumes the debounce filter, test pulse width, and discrepancy time are set to minimum values for the given configuration.

Digital Output

Output type	Sourcing
Minimum ON time	190 μs

Caution You must enforce minimum ON time or the channel may fail to de-energize in an overcurrent or short-circuit condition. Failure to de-energize in an overcurrent or short-circuit condition may damage the module.

Caution Vous devez respecter une durée d'activation minimale, sinon la voie risque de ne pas passer hors tension en cas de surintensité ou de court-circuit. L'absence de mise hors tension en cas de surintensité ou de court-circuit peut endommager le module.

Minimum OFF time

170 μs

Caution You must enforce minimum OFF time except when the channel is configured with test pulses. Test pulse width may be smaller than the minimum OFF time.

Caution Vous devez respecter un temps d'arrêt minimum, sauf lorsque la voie est configurée avec des impulsions de test. La largeur de l'impulsion de test peut être inférieure au temps d'arrêt minimum.

Continuous output current (per channel)	250 mA, maximum
ON state voltage drop (V_sup pin to DO pin)	45 mV + (channel output current) × 0.3 Ω, maximum
OFF state leakage current	0.2 mA, maximum
Required external load	50 kΩ, maximum

Note The required external load must be present on DO configurations with internal readback or internal test pulse. A readback fault or test pulse fault may occur if the required external load is not present.

Load capacitance

0.5 μF, maximum

Cable length

200 m, maximum

Open circuit detection

11 mA

2 mA, minimum

20 mA, maximum

Protection

Voltage

0 V to V_sup, maximum

Reverse Voltage

None

Overcurrent channel disable

>250 mA, minimum

340 mA, maximum

Note Transient loads exceeding overcurrent protection will trigger an overcurrent fault. This does not apply to inrush currents required to drive the specified load capacitance and cable length.

Power Requirements

Power consumption from chassis
Active mode	60 mW, maximum
Sleep mode	200 μW, maximum

Thermal dissipation (at 70 °C)
Active mode	1.6 W, maximum
Sleep mode	1.6 W, maximum

External Power Supply Requirements

Caution You must use an appropriate power source to limit output power in case of a fault. For a list of required power supply categories, refer to the C Series Functional Safety Manual on ni.com/manuals.

Voltage input range

19 V DC to 30 V DC

Note The NI-9350 includes input power protection circuitry. If the voltage at V_sup falls outside the voltage input range, the module will power down and all channels will de-energize. You must cycle external power to the module to resume operation.

Power consumption, active or sleep mode
No DO load	1.05 W, maximum
Full DO load, 30 V input	61.6 W, maximum

Physical Characteristics

If you need to clean the module, wipe it with a dry towel.

Tip For two-dimensional drawings and three-dimensional models of the C Series module and connectors, visit ni.com/dimensions and search by module number.

Spring terminal wiring

Wire length

61 cm (24 in.), minimum

COM jumper length

61 cm (24 in.), minimum

Gauge

0.50 mm² to 1.5 mm² (20 AWG to 16 AWG) copper conductor wire, if using single wire per spring terminal; 0.34 mm² (22 AWG) copper conductor wire, if using two wires per spring terminal

Wire strip length

10 mm (0.39 in.) of insulation stripped from the end

Insulation temperature rating

90 °C, minimum

Wires per spring terminal

One solid or stranded wire per spring terminal; two stranded wires per spring terminal using a two-wire ferrule

Ferrules
Single ferrule, uninsulated	0.50 mm² to 1.5 mm² (20 AWG to 16 AWG), 10 mm barrel length
Single ferrule, insulated	0.50 mm² to 1.0 mm² (20 AWG to 18 AWG), 12 mm barrel length
Two-wire ferrule, insulated	2x 0.34 mm² (2x 22 AWG), 12 mm barrel length

Connector securement
Securement type	Screw flanges provided
Torque for screw flanges	0.25 N · m (2.2 lb · in.)

Weight^[2]² Includes 26-pin spring terminal and connector backshell.

210 g (7.4 oz)

Safety Voltages

Connect only voltages that are within the following limits:

Caution Do not connect hazardous voltages to the NI-9350. A hazardous voltage is a voltage greater than 42.4 V peak voltage or 60 V DC to earth ground.

Caution Ne pas connecter de tensions dangereuses au NI-9350. Une tension dangereuse est une tension supérieure à une tension de crête de 42,4 V ou à une tension par rapport à la terre de 60 V CC.

Maximum voltages
V_sup-to-COM	30 V DC
DI-to-COM	30 V DC
DO-to-COM	0 V DC to V_sup

Caution DO channels are not protected for negative voltages or voltages greater than V_sup.

Caution Les voies DO ne sont pas protégées des tensions négatives ou des tensions supérieures à Vsup.

Isolation voltages

Channel-to-earth^[3]³ Channels include V_sup and COM. (up to 5,000 m)
Continuous	60 V DC, Measurement Category I
Withstand	1,000 V RMS, verified by a 5 s dielectric withstand test

Measurement Category

Measurement Category I

Caution Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV.

Attention Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.

Warning Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV, or for measurements on MAINs circuits or on circuits derived from Overvoltage Category II, III, or IV which may have transient overvoltages above what the product can withstand. The product must not be connected to circuits that have a maximum voltage above the continuous working voltage, relative to earth or to other channels, or this could damage and defeat the insulation. The product can only withstand transients up to the transient overvoltage rating without breakdown or damage to the insulation. An analysis of the working voltages, loop impedances, temporary overvoltages, and transient overvoltages in the system must be conducted prior to making measurements.

Mise en garde Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de surtensions de catégorie II, III ou IV pouvant présenter des surtensions transitoires supérieures à ce que le produit peut supporter. Le produit ne doit pas être raccordé à des circuits ayant une tension maximale supérieure à la tension de fonctionnement continu, par rapport à la terre ou à d'autres voies, sous peine d'endommager et de compromettre l'isolation. Le produit peut tomber en panne et son isolation risque d'être endommagée si les tensions transitoires dépassent la surtension transitoire nominale. Une analyse des tensions de fonctionnement, des impédances de boucle, des surtensions temporaires et des surtensions transitoires dans le système doit être effectuée avant de procéder à des mesures.

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Calibration

You can obtain the calibration certificate and information about calibration services for the NI-9350 at ni.com/calibration.

Calibration interval

1 year