Справочник Пользователя для National Instruments FP-RLY-420

FieldPoint ™ is a trademark of National Instruments Corporation. Product and company names 
mentioned herein are trademarks or trade names of their respective companies.

© Copyright 1998, 1999 National Instruments Corp. All rights reserved. June 1999

These operating instructions describe the installation, features, and 
characteristics of the FP-RLY-420. For details on configuring and 
accessing the FP-RLY-420 over a network, refer to the user manual 
for the particular FieldPoint network module you are using with 
the FP-RLY-420.

The FP-RLY-420 is a FieldPoint relay output module with the 
following features:

•

Eight Single-Pole Single-Throw (SPST) relay channels

•

Switching capacity 3 A at 35 VDC or 250 VAC

•

On/Off LED indicators

•

Hot plug and play operation

•

3,000 V input to output isolation

•

Double insulated for 250 V safe working voltage

•

–40 to +70 °C operation

The FP-RLY-420 is powered via the local backplane bus from the 
FieldPoint network module. The FP-RLY-420 is a high-power 
consumption module and requires more than the nominal power 
allocated to an I/O module from the network module. In some 
applications, this could limit the number of I/O modules that you 
can connect to a single network module.

When defining a FieldPoint system that uses an FP-RLY-420 
module, you must calculate the power consumption. First refer 
to the specifications section in the user manual for your network