1746-NO8V Analog Output Module - Allen-Bradley

Allen-Bradley 1746-NO8V Analog Output Module

• Brand: Allen-Bradley
• Series: SLC 500 programmable controller system
• Model Number: 1746-NO8V
• Module Type: 8-channel analog voltage output
• Output Coding: -32,768 to +32,767 counts
• Output Ranges: ±10.25V DC, 0-10V DC, 0-5V DC, 1-5V DC
• Resolution: 16-bit (320 µV per count)
• DAC Method: Built-in R-2R ladder network

Technical Performance Specifications

• The 1746-NO8V offers eight single-ended output channels in one module
• It maintains excellent 0.1% full-scale accuracy at normal room temperature
• Accuracy changes to 0.2% of full scale when operating at 60°C
• Total update time for all channels is very fast at 540 microseconds
• Output step response reaches 95% of scale in only 1 millisecond
• The module provides 500V DC isolation between field and backplane wiring
• Status indicator LEDs show module health and channel activity
• Configuration options include scaling for PID and engineering units

Electrical and Environmental Ratings

• Module operation requires a load impedance of 1 kΩ or higher
• Maximum output current per channel is limited to 10 mA
• Output impedance remains very low at less than 1 ohm
• Operating temperature range is 0°C to 60°C (32°F to 140°F)
• It handles relative humidity from 5% to 95% without condensation
• The module withstands vibration up to 5G (10-500 Hz frequency)
• It can survive operational shock forces as high as 30G
• Certifications include CUL and CE for Class I, Division 2 locations

Installation and Power Requirements

• Install the module in any 1746 chassis slot except slot 0
• Backplane current needs are 120 mA at 5V DC from the chassis
• Power use from the 24V backplane depends on the J4 jumper setting
• Set J4 to 'RACK' for 160 mA backplane power at 24V DC
• Set J4 to 'EXT' when using external 24V DC field power supply
• Total backplane power consumption measures approximately 5.6 watts
• Field wiring connections use standard removable terminal blocks
• Follow proper grounding practices for optimal noise immunity

Frequently Asked Questions

• What systems use the 1746-NO8V module?
  The module works with Allen-Bradley SLC 500 fixed and modular controllers.
• How accurate is this analog output module?
  The 1746-NO8V provides 0.1% full-scale accuracy at 25°C operating temperature.
• Can I use different voltage ranges on each channel?
  Yes, you can configure each of the eight channels for different output ranges independently.
• What is the minimum load for proper operation?
  Each output channel needs at least a 1,000 ohm load resistance for correct voltage signals.
• How fast does the module update its output values?
  All eight channels refresh their output values together every 540 microseconds.
• Does the module need external power?
  You can power it from the backplane or use an external 24V DC supply with jumper setting.
• What comes in the package?
  You receive the 1746-NO8V module with documentation in factory sealed packaging.

Contact Information:
For technical specifications or purchasing information:
Email: sales@nex-auto.com
Phone/WhatsApp: +86 153 9242 9628

Partner: NexAuto Technology Limited