FLEX I/O Digital DC Output Modules 21
Publication 1794-IN094D-EN-P - July 2018
Environmental Specifications
Attribute Value
Operating temperature IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
-20…55 °C (-4…131 °F) – 1794-OB8, 1794-OB8EP, 1794-OB16, 1794-OB16P
0…55 °C (32…131 °F) – 1794-OB32P
Temperature,
surrounding air, max
55 °C (131 °F)
Temperature,
nonoperating
IEC 60068-2-1 (Test Ab, Unpackaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Unpackaged Non-operating Dry Heat),
IEC 60068-2-14 (Test Na, Unpackaged Non-operating Thermal Shock):
-40…85 °C (-40…185 °F)
Relative humidity IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):
5…95% non-condensing
Vibration IEC60068-2-6 (Test Fc, Operating):
5 g @ 10...500 Hz
Shock, operating IEC60068-2-27 (Test Ea, Unpackaged shock):
30 g
Shock, nonoperating IEC60068-2-27 (Test Ea, Unpackaged shock):
50 g
Emissions CISPR 11:
Group 1, Class A (with appropriate enclosure)
ESD immunity IEC 61000-4-2:
6 kV contact discharges
8 kV air discharges
Radiated RF immunity IEC 61000-4-3: (1794-OB8, 1794-OB8EP, 1794-OB16, 1794-OB16P only)
10V/m with 1 kHz sine-wave 80% AM from 80…2000 MHz
10V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz
10V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz
10V/m with 1 kHz sine-wave 80% AM from 2000…2700 MHz – 1794-OB8,
1794-OB16
3V/m with 1 kHz sine-wave 80% AM from 2000…2700 MHz – 1794-OB8EP,
1794-OB16P
IEC 61000-4-3: (1794-OB32P)
10V/m with 1 kHz sine-wave 80% AM from 30…1000 MHz
EFT/B immunity IEC 61000-4-4:
±2 kV @ 5 kHz on power ports – 1794-OB8, 1794-OB16, 1794-OB32P
±3 kV @ 5 kHz on power ports – 1794-OB8EP, 1794-OB16P
±2 kV @ 5 kHz on signal ports – 1794-OB8, 1794-OB16, 1794-OB32P
±3 kV @ 5 kHz on signal ports – 1794-OB8EP, 1794-OB16P
Surge transient
immunity
IEC 61000-4-5:
±1 kV line-line(DM) and ±2 kV line-earth(CM) on signal ports
Conducted RF immunity IEC 61000-4-6:
10V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz
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