Allen-Bradley|1794-OF4I|Analog Output Module

AB 1794-OF4I Analog Output Module

Description The AB 1794-OF4I is a high-performance analog output module providing four isolated outputs for devices using voltage in the range of ±10V or 0...20mA current.

Features Compact design, high accuracy, and versatile connectivity options.

Technical Specifications

• Power Dissipation:

  • Max: 4.0 W @ 31.2V DC
  • Max: 4.3 W @ 24V DC
  • Max: 4.6 W @ 18V DC

• Thermal Dissipation:

  • Max: 14.7 BTU/hr @ 24V DC

• Wire Size:

  • 0.34 - 2.5 mm² (22...12 AWG) solid or stranded shielded copper wire with insulation max. 0.8 mm (0.031") or greater 1.2 mm (0.047") insulation max.

• Dimensions:

  • Approx. 48 x 94 x 58 mm (1.8 x 3.7 x 3.1 in.)
  • Installed: 94 x 94 x 89 mm (3.7 x 3.7 x 2.7 in.)

• Output Resolution:

  • 15 bit + sign
  • 0.003% Full Scale /cnt
  • 0.320 mV/cnt

• Data Format:

  • 2's complement
  • 2's complement percent binary
  • offset binary

• Output Conversion Rate:

  • 2.5/5.0 ms

• Step Response to 63% of FS, output:

  • Current or voltage output: <25 µs

• Current Load on Voltage Output, max:

  • 3 mA

• Output Current, Resistive Load:

  • 0...750 Ω

• Accuracy:

  • Current input: 0.1% Full Scale @ 25°C (77°F)
  • Voltage input: 0.1% Full Scale @ 25°C (77°F)

• Accuracy Drift w/temp:

  • Current input: 0.0025% Full Scale /°C
  • Voltage input: 0.0012% Full Scale /°C

• Isolation Voltage:

  • 120V (continuous), when used with 1794-TBZ, 1794-TB3, 1794-TBS3, 1794-TBST, or 1794-TBSTS
  • 250V (continuous), when used with 1794-TBN
  • Type tested at 1500V AC for 60 s, and 2550V DC for 1 s, channel to channel, I/O to system