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DNR-DIO-462

DNR-DIO-462
Guardian™ 12-Channel Form C Relay Output Board
 
The DNA-DIO-462 and DNR-DIO-462 are 12 channel, electromechanical relay boards designed for use with “Cube” and RACKtangle® chassis respectively. Electronically, they are identical. Relays are in a Form C (SPDT) configuration and are rated for continuous operation at 2 A at 30 VDC, or 0.75 Amp at 125 VAC. Contacts are rated for 100 million operations. The board provides an on resistance of less than 200 milliohms and update rates up to 125 Hz. 

The DIO-462 is part of Guardian series. It not only controls the relay outputs, it provides a powerful output monitoring capability. An on-board A/D converter allows you to monitor DC output voltages (relative to the common terminal) and AC or DC output current. This allows the application to detect short and open circuits as well as other “suspicious behavior”. The monitoring capability is also a powerful diagnostic tool allowing a repair technician to quickly and accurately identify damaged, or mis-wired channels. 

The Guardian advantage also includes programmable overcurrent protection. The user may select the overload current while the duration of overload required before the channel is shut down is one second. Each board provides 350 VDC isolation between channels, as well as between the board, cube and other installed I/O boards. 

All connections are made through 37-pin D connectors ensuring mating cables or connectors are readily available. Users may also use the DNA-STP-37 screw terminal panel via DNA-CBL-37 or -37S series cables. 

The DNx-DIO-462 includes software drivers supporting all popular operating systems including: Windows, Linux, QNX, VXWorks, RTX, and other popular Real-Time Operating Systems. Our UEIDAQ Framework provides Windows users a simple and complete software interface to all popular programming languages and data acquisition and control applications (e.g. LabVIEW, DASYLab, MATLAB).
 
Characteristics:
  • The Guardian Advantage
    • Programmable overcurrent protection (50 mA to 2 A)
    • Programmable overcurrent duration limits
    • Monitors each channel’s output voltage and current allowing Automatic detection of shorts/open and other system failures
  • 2 A continuous output current at 30 VDC
  • 750 mA continuous output current at 150 VAC
  • 200 milliohm on resistance
  • Output throughput rate of 125 updates per second
 
Technical Specifications
Output specifications
Rated Load 2 A at 30 VDC, 0.75 A at 125 VAC continuous
Max Switching Capacity 94 VA, 90 W
Max Operating Voltage 220 VDC, 250 VAC
Min Permissible Load 10 µA, 10 mVDC
Contact Material Ag (Au clad)
Contact ON impedance 200 mOhm max (at the I/O connector)
Contact OFF impedance >18 MOhm
Off Leakage Current < 100 µA
Turn-On Time 4 mS max, 2.5 mS typ
Turn-Foff Time 4 mS max, 1.5 mS typ
Max Operating Freq 125 operations/second (36000/hour limit)
Service Life Mechanical 100 000 000 min
Electrical 100 000 at 2 A 30 VDC or 0.75 A and 125 VAC
Monitor/circuit breaker specs
Resolution 16 bit
Range +150/-30 VDC
±2 A DC
0.3-2 A AC
-55/+100 °C
Accuracy
DC Voltage 5% of measurement + 0.25% of the full scale
DC Current 5% of measurement + 0.25% of the full scale
AC Voltage 15% of measurement + 1% of the full scale
Relay Temperature ±2 °C typ
Protection (only one type activated per channel)
DC Voltage ±5 V to ±220 V
DC Current 50 mA to 2 A
AC Current 400 mA to 2 A
Relay Temperature 0-85 °C
Disconnection Time 1 sec
General
Power up / reboot state Off (NC Energized)
Power dissipation < 3.5 W
Isolation 350 Vrms
Operating Temp. Range Tested -40 to +85 °C
Operating Humidity 95%, non-condensing
Vibration IEC 60068-2-6 5 g, 10-500 Hz, sinusoidal
IEC 60068-2-64 5 g (rms), 10-500 Hz, broad-band random
Shock IEC 60068-2-27 50 g, 3 ms half sine, 18 shocks @ 6 orientations
30 g, 11 ms half sine, 18 shocks @ 6 orientations
MTBF 260,000 hours