Overview

Current-source Analog Output Blocks provide six output circuits for devices requiring 4-20mA signals. Additionally, outputs 5 and 6 can be configured for voltage applications. Two models are available based on power requirements:

• 115 VAC Current-source Analog Output Block (IC66*BBA105)
• 24/48 VDC Current-source Analog Output Block (IC66*BBA025)

Both blocks are identical in functionality, differing only in their power supply specifications.

Block Specifications

• Size:

  • Height: 8.83” (22.44 cm)
  • Width: 3.34” (8.48 cm)
  • Depth: 3.91” (9.93 cm)

• Weight: 4 lbs. (1.8 kg)

• LEDs (I/O Block):

  • Unit OK
  • I/O Enabled

• Block to Block Isolation: 1500V for one minute

• Heat Dissipation: 12 Watts maximum

• Block Power (nominal):

  • 115 VAC
  • 125 VDC
  • 24/48 VDC

• Power Supply Voltage:

  • Maximum Current:
    • 98-132 VAC: 250mA
    • 105-145 VDC: 140mA
    • 18-56 VDC: 600mA
  • Frequency/Ripple:
    • 47-63 Hz, 10% max. ripple
  • PS Dropout Time:
    • 1 cycle (for AC)
    • 10 ms min. (for DC)

Output Specifications

• Output Accuracy at 25° C: 0.15% of full scale reading

• Output Resolution: 6 µA

• Output Update Frequency: 25 ms

• Range:

  • 4 mA to 20 mA
  • Overrange capacity: 0 mA to 24 mA

• Output Diagnostics:

  • Underrange
  • Overrange
  • Feedback error

• Output Load:

  • 0 Ohms to 850 Ohms (current application)
  • 0 to 10 mA: 0 to 5-volt application
  • 0 to 10 mA: 0 to 20-volt (maximum) voltage application

• Thermal Drift (from 25°C): 35 PPM per degree C typical

Environmental Specifications

• Operating Temperature: 0° C to +60° C (+32° to +140° F)

• Storage Temperature: -40° to +100° C (-40° to +212° F)

• Humidity: 5% to 95% (non-condensing)

• Vibration:

  • 5-10 Hz: 0.2” (5.08 mm) displacement
  • 10-200 Hz: 1G