National Instruments FP-RLY-420 ユーザーズマニュアル
FieldPoint ™ is a trademark of National Instruments Corporation. Product and company names
mentioned herein are trademarks or trade names of their respective companies.
mentioned herein are trademarks or trade names of their respective companies.
321904B-01
© Copyright 1998, 1999 National Instruments Corp. All rights reserved. June 1999
OPERATING INSTRUCTIONS
FP-RLY-420
8-Channel, SPST Relay Module
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.
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.
Features
The FP-RLY-420 is a FieldPoint relay output module with the
following features:
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
Power Requirement
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.
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
module, you must calculate the power consumption. First refer
to the specifications section in the user manual for your network