NICFP-2020 NI [National Instruments Corporation], NICFP-2020 Datasheet

NICFP-2020

Manufacturer Part Number

NICFP-2020

Description

Relay Modules for Compact FieldPoint

Manufacturer

NI [National Instruments Corporation]

Datasheet

1.NICFP-2020.pdf (3 pages)

Current page: 1 of 3
Download datasheet (652Kb)

Overview

The National Instruments cFP-RLY-42x devices are versatile relay

modules for Compact FieldPoint that can be used to control digital

signals ranging from low voltage to 120 VDC and to 250 VAC. These

modules are commonly used to control indicator lights, motors, and

power circuits. All the modules include onboard diagnostics to ensure

trouble-free installation and maintenance. Similar relay modules are

available for FieldPoint, see page 572 for more information.

Relay Modules

NI cFP-RLY-42x modules provide built-in module-to-module

isolation to protect your Compact FieldPoint system and controller

from high voltage levels.

electrically isolated output relays so that each relay output has a

separate ground plane and each channel can be used with a different

voltage potential. Thus, you can connect one channel to a 24 VDC

and another channel on the same module to a 250 VAC.

output state of each channel. The modules all feature a maximum

switching frequency of 10 Hz (20 operations). Overall data throughput

depends on software loop speeds and network speeds.

Module

cFP-RLY-421

cFP-RLY-423

All the channels on the relay modules feature LEDs that indicates the

NI cFP-RLY-421, NI cFP-RLY-423

• 4 or 8 electromechanical relays

• Switch 250 VAC, 120 VDC

• Switch 1.5 A, maximum

• 2,300 V

• Hot swappable with autoconfiguration

• -40 to 55 °C operating range

• -40 to 60 °C operating range

•

overvoltage protection

(cFP-RLY-421)

(cFP-RLY-423)

8 form A (SPST), RLY-421

4 form C (SPDT), RLY-423

Output Channels

rms

bank isolation for transient

120 VDC, 250 VAC

Output Types

Maximum

Each channel on the RLY-42x uses

Relay Modules for Compact FieldPoint

Output Current Rating

(See Specifications)

1.5 A

Separate Ground

per Channel

Plane

✓

Isolation

The cFP-RLY-42x modules feature optical bank isolation with

2,300 V

double insulation for up to 250 V

FieldPoint can safely be used in applications where hazardous voltages

are present with the cFP-CB-1 connector block. These Compact

FieldPoint modules do not have channel-to-channel isolation.

Power Requirements

Because the cFP-RLY-42x are high power consumption modules,

they could limit the number of I/O modules that you can connect to

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.

Field I/O Connections

1. Relay common terminal (IC)

2. Normally open terminal (NO)

1. Normally open terminal (NO)

2. Normally closed terminal (NC)

3. Relay common terminal (IC)

Each input channel on the cFP-RLY-421 has two terminals:

Each channel of the cFP-RLY-423 has three terminals:

rms

of breakdown isolation. In addition, the modules provide

rms

NEW

of operational isolation. Compact

Related parts for NICFP-2020

NICFP-2020 Summary of contents

Page 1

Relay Modules for Compact FieldPoint NI cFP-RLY-421, NI cFP-RLY-423 • 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 ...

Page 2

Relay Modules for Compact FieldPoint SUP NO Sourcing Load IC COM To next channel cFP-RLY-421 Load + IC – Load V SUP COM cFP-RLY-423 Figure 1. Wiring Schematics for RLY Modules Specifications ...

Page 3

NI has the services and support to meet your needs around the globe and through the application life cycle – from planning and development through deployment and ongoing maintenance – and tailored for customer requirements in research, design, validation, and ...

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