Relay Modules for Compact FieldPoint
NEW
NI cFP-RLY-421, NI cFP-RLY-423
• 4 or 8 electromechanical relays
• 8 form A (SPST), RLY-421
• 4 form C (SPDT), RLY-423
• Switch 250 VAC, 120 VDC
• Switch 1.5 A, maximum
• 2,300 Vrms bank isolation for transient
overvoltage protection
• Hot swappable with autoconfiguration
• -40 to 55 °C operating range
(cFP-RLY-421)
• -40 to 60 °C operating range
(cFP-RLY-423)
Separate Ground
Plane
per Channel
Isolation
Maximum
Output Current Rating
Module
cFP-RLY-421
cFP-RLY-423
Output Channels
Output Types
120 VDC, 250 VAC
120 VDC, 250 VAC
(See Specifications)
The cFP-RLY-42x modules feature optical bank isolation with
2,300 Vrms of breakdown isolation. In addition, the modules provide
double insulation for up to 250 Vrms of operational isolation. Compact
FieldPoint can safely be used in applications where hazardous voltages
8
4
1.5 A
1.5 A
✓
✓
Overview
The National Instruments cFP-RLY-42x devices are versatile relay are present with the cFP-CB-1 connector block. These Compact
modules for Compact FieldPoint that can be used to control digital FieldPoint modules do not have channel-to-channel isolation.
signals ranging from low voltage to 120 VDC and to 250 VAC. These
modules are commonly used to control indicator lights, motors, and Power Requirements
power circuits. All the modules include onboard diagnostics to ensure Because the cFP-RLY-42x are high power consumption modules,
trouble-free installation and maintenance. Similar relay modules are they could limit the number of I/O modules that you can connect to
available for FieldPoint, see page 572 for more information.
a single network interface module. Controllers and network interface
modules supply up to 9 W to power I/O modules. The RLY-421
requires up to 2.5 W and the RLY-423 requires up to 1.5 W.
Relay Modules
NI cFP-RLY-42x modules provide built-in module-to-module
isolation to protect your Compact FieldPoint system and controller Field I/O Connections
from high voltage levels. Each channel on the RLY-42x uses
Each input channel on the cFP-RLY-421 has two terminals:
electrically isolated output relays so that each relay output has a 1. Relay common terminal (IC)
separate ground plane and each channel can be used with a different 2. Normally open terminal (NO)
voltage potential. Thus, you can connect one channel to a 24 VDC
and another channel on the same module to a 250 VAC.
Each channel of the cFP-RLY-423 has three terminals:
1. Normally open terminal (NO)
All the channels on the relay modules feature LEDs that indicates the 2. Normally closed terminal (NC)
output state of each channel. The modules all feature a maximum 3. Relay common terminal (IC)
switching frequency of 10 Hz (20 operations). Overall data throughput
depends on software loop speeds and network speeds.
5秒后页面跳转
常用8脚开关电源芯片型号大全
74HC04芯片引脚图及功能、应用电路图讲解
CR6842芯片参数、引脚配置、应用电路图详解
国产PoE供电芯片选型替代指南，你想要的都在这里！
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，
