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IO424

LVDT/RVDT, Synchro and Resolver Measurement I/O Module

The IO424 is a digital, 16-bit, 4-channel I/O module to interface with high-precision position sensors. It supports linear (LVDT) and rotary (RVDT, Resolver, Synchro) displacement measurement. It is ideal for applications that demand precise, interference-resistant feedback, such as motor and actuator control, aerospace systems, and industrial test benches.

The IO424 is software-configurable and allows seamless switching between LVDT, RVDT, Resolver, and Synchro. You can combine the IO424 with the IO425 I/O module, which provides LVDT/RVDT/Resolver signal emulation, for complete closed-loop testing of control designs.

Key Features

  • Provides four channels for LVDT, RVDT, and Resolver measurement. Synchro version also available
  • Provides high-precision 16-bit digital measurement data
  • Offers software-configurable sensor adaptation
  • Has onboard excitation to power your sensors without requiring additional power sources
  • Input from 0 V to 12 V and frequencies from 1 kHz to 20 kHz
 
Physical  
Form factor PMC
Power requirements 180 mA typical @+5V (no load on excitation outputs)
600 mA @+5V (all 4 EXC outputs driving 3 VRMS @20 mA)
1800 mA @+5V (all 4 EXC outputs driving 12 VRMS @80 mA)
Connectors 50-pin MDR
Environmental  
Operating temperature -40ºC to +85ºC
Relative humidity 5% to 95%, non-condensing
I/O Interface
  
Number of channels 4
Supported sensor configuration Resolver
LVDT/RVDT: Differential 4-wire, Ratiometric 6-wire or 5-wire
Synchro (only for IO424-RS)
Excitation output 0–12 VRMS up to 100 mA
Excitation output frequency 1-20 kHz
Excitation input RDC/LVDT channels: 0-12 VRMS
Synchro channels: 0-28 VRMS
Excitation input frequency RDC/LVDT channels: 1-20 kHz
Synchro channels: 0.4 - 20 kHz
Sensor input voltage RDC/LVDT channels: 0-12 VRMS
Synchro channels: 0-28 VRMS
Resolution Angle/stroke: 16-bit
Velocity: 14-bit
Tracking rate 1/4 excitation frequency
Accuracy RDC: Up to 1.5 arcmin
RDC velocity: Up to ±0.5 %
LVDT/RVDT: Up to ±0.06 %
Synchro: Up to 4 arcmin
Reliability  
Mean time between failure (MTBF)* IO424-R: 682,000 hours
IO424-RS: 463,000 hours
Item ID Product Name Components
2C424 IO424-R
  • IO424 4-Channel Resolver or LVDT/RVDT-to-Digital Converter
2D424 IO424-RS
  • IO424 2 Channel Resolver or LVDT/RVDT-to-Digital Converter, 2 Channel Synchro-to-Digital Converter


Pricing information
We don't publish pricing information on our website. Upon request by e-mail or phone we can provide a complete price list covering our entire product portfolio in various currencies. We recommend that you get in touch with us to discuss your specific needs. We can then quickly provide you with a tailored quotation including technical and pricing information.

 
IO424 module

Included in the Delivery

Common Applications

Supported target machines

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