NI NI-9477 C Series 32-Channel 60V Sinking Digital Output Module

Technical Specifications

Model:NI-9477

Brand:NI

Part No:779517-01

Product type:C Series Sinking Digital Output Module

Channels:32 sinking digital output channels

Voltage range:5VDC ~ 60VDC

Response/update time:8μs

Channel current:1A per channel,max 20A total for whole module

Isolation:60VDC channel-to-earth isolation

Connector:37pin D-SUB

Dimension:90mm50mm19mm

Weight:150g

Operating temperature:-40℃ ~ +70℃

Storage temperature:-55℃ ~ +85℃

Relative humidity:10~90% non-condensing

Certification:CE,UL,ATEX

System compatibility

NI-9477 belongs to NI C series DAQ platform.It works with CompactRIO and CompactDAQ chassis,supported by NI-DAQmx and LabVIEW,widely used for driving industrial relays,solenoid valves and small actuators in factory automation and test systems.It is spare part for legacy test equipment overhaul.

Function

NI-9477 is rugged high-voltage sinking digital output C-series module.It directly switches industrial DC loads up to 60V.Each channel can sink up to 1A current and channels can be paralleled for higher total current.Isolation design suppresses ground noise and protects backplane from field voltage interference.

Installation

Insert NI-9477 into CompactRIO or cDAQ chassis slot,tighten front panel screw.Connect relay or solenoid wiring to 37pin D-SUB connector.Install NI-DAQmx driver.Take ESD protection before installation.

Interface

‑37pin D-SUB digital output connector

‑C series backplane edge connector

‑Module status LED indicators

Feature

NI-9477 classic NI high current sinking digital output module.Typical faults:output channel burnout,D-SUB pin corrosion,internal circuit damage.Inspect load wiring before replacement.

Diagnostic

Fault phenomenon:channel cannot turn on/off,overheat,output no switching.Check external power supply,actuator wiring,chassis backplane connection and module status LED.

Product Brief

NI-9477 is NI C series 32-channel sinking digital output module supporting 5~60VDC industrial loads,8μs fast update,60VDC isolation,for relay,solenoid and actuator control in CompactRIO and cDAQ automation systems.Mainly used for maintenance and replacement of old test equipment.ESD protection must be followed during handling.