Low-Cost Industrial Digital I/O – 150 V
NI 6521
• 8, ±30 VDC digital inputs with 60 V
channel-to-channel isolation
Recommended Software
• LabVIEW
• LabWindows/CVI
• Measurement Studio
• 8 nonlatching mechanical relay outputs
• 150 V AC/DC maximum switching voltage
with maximum switching current of 2 A
and maximum switching power of 60 W
Other Compatible Software
• C, C++
• Microsoft Visual Studio .NET 2003
• UL listed: UL 61010-1 (IEC 61010-1)
• High-reliability industrial feature set
includes isolation, programmable
power-up states, digital filtering,
watchdog timers, and change detection
• NI measurement services software for
highest productivity and performance
Measurement Services
Software (included)
• NI-DAQmx driver, Version 7.5 or later
Safety
Operating Systems
• Windows 2000/NT/XP
• LabVIEW Real-Time
INPUT
OUTPUT
Low
Threshold
±± VDC
High
Threshold
±11 VDC
Mechanical
Relay Outputs
8
Industrial
Feature Set
ꢀ
Product
Bus
Inputs
Isolation
Max Voltage
150 V AC/DC
Max Current
Max Power
60 W
NI 6521
PCI, PXI
8
60 V channel-to-channel
2 A
Overview and Applications
many helpful features such as DAQ Assistant, automatic code
generation, and high-performance multithreaded streaming technology.
The National Instruments 6521 products are industrial digital I/O devices
with eight channel-to-channel isolated digital inputs and eight nonlatching
mechanical relay outputs. You can use the eight differential, isolated,
±30 VDC digital inputs to read the status of sensors, actuators, and logic
devices. You can use the bipolar digital input channels to read from both
sinking and sourcing devices. NI 6521 devices register a logic low if the
voltage is between ±± V, and register a logic high if the voltage is less
than -11 V or greater than +11 V.
Safety
• UL listed: UL 61010-1 (IEC 61010-1)
• Keyed connector
• Insulation covers
• Complete software configuration
• High-voltage accessories
NI 6521 devices are UL listed and require the use of a keyed connector
to prevent high-voltage signals from accidentally being connected to a
low-voltage device. For added safety, PCI-6521 includes insulation covers
on both sides of the board to prevent the user from coming in contact
with high-voltage traces. Complete software configuration means that
the user at no point is required to come in the vicinity of high-voltage
traces. Several low-cost, high-voltage accessory options are available
to ensure safe operation.
NI 6521 devices offer three single-pole double-throw (SPDT) Form C
relays and five single-pole single-throw (SPST) Form A relays. You can
use NI 6521 relay outputs to switch devices requiring up to 150 V AC/DC.
NI 6521 relay outputs have maximum current rating of 2A and maximum
switching power of 60 W.
Note: The switching current is limited by the maximum switching
power and maximum voltage. (current = power/voltage)
NI 6521 devices offer completely programmable configuration and do not
require setting up jumpers or DIP switches. These devices are ideal for use
with a programmable automation controller (PAC) for automotive test,
industrial monitoring, and control applications. With high-current drive, high-
voltage outputs, and isolation, you can connect the digital I/O module directly
to a wide array of industrial electronic devices, sensors, and actuators.
NI 6521 devices take advantage of NI-DAQmx measurement services
software (Version 7.5 or later) to speed up application development with
Isolation
Channel-to-channel . . . . . . . . . . . . . . . . . . . . . . .60 VDC continuous1
Channel-to-bus . . . . . . . . . . . . . . . . . . . . . . . . . .150 VDC continuous2
Channel-to-earth . . . . . . . . . . . . . . . . . . . . . . . . .150 VDC continuous3
1 Verified by 620 Vrms dielectric withstand test, 5 s
2 Verified by 1400 Vrms dielectric withstand test, 5 s
3 Verified by 850 Vrms dielectric withstand test, 5 s
5秒后页面跳转
三星深化印度制造布局，供应链本地化进程加速
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
纳微科技震撼发布GaNSlim革新氮化镓功率芯片
意法半导体发布第四代SiC技术，助力电动汽车电驱
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
