1794-OE4 4-Channel Analog Output - Allen-Bradley

1794-OE4 Analog Output Module Overview

Key Technical Specifications of the 1794-OE4

• Brand: Allen-Bradley - 1794-OE4 Flex IO Analog Output Module.
• Part Number: 1794-OE4 - Four-channel analog output module.
• Output Channels: Four (4) single-ended, non-isolated channels.
• Output Signal Types: 0-20 mA, 4-20 mA, ±10VDC, and 0-10VDC.
• Conversion Type: Pulse width modulation for accurate analog conversion.
• Resolution: 12 bits plus sign for precise output control.
• Voltage Resolution: 2.56 mV per count for fine voltage adjustments.
• Current Resolution: 5.13 µA per count for precise current control.
• Conversion Rate: 1.024 ms maximum for all channels simultaneously.

Electrical and Power Characteristics

• External DC Supply Nominal: Requires 24V DC for normal operation.
• External DC Supply Range: Accepts 10.0…31.2V DC including 5% AC ripple.
• FlexBus Current Draw: Consumes 20 mA from the backplane.
• External DC Current: Draws 70 mA at 24V DC during normal operation.
• Power Dissipation: Reaches 4.5W maximum at 31.2V DC.
• Thermal Dissipation: Dissipates 13.6 BTU/hr at 31.2V DC maximum.
• Isolation Voltage: Provides 50V continuous isolation between I/O and system.

Accuracy and Drift Specifications

• Current Output Accuracy: 0.425% of full scale at 25°C.
• Current Accuracy Drift: 0.0069% of full scale per °C with temperature.
• Voltage Output Accuracy: 0.133% of full scale at 25°C.
• Voltage Accuracy Drift: 0.0045% of full scale per °C with temperature.
• Data Format: Left justified, 16-bit 2's complement format.
• Step Response Time: 24 ms to reach 63% of full scale setting.

Environmental and Mechanical Specifications

• Operating Temperature Range: Works from 0 to 55°C (32 to 131°F).
• Storage Temperature Range: Withstands -40 to 85°C (-40 to 185°F).
• Vibration Resistance: Withstands 5g at 10 to 500 Hz frequency range.
• Mounting Method: Installs easily on a standard DIN rail.
• Physical Dimensions: Measures 94.0 x 94.0 x 53.3 mm (3.7 x 3.7 x 2.1 inches).
• Wire Size: Depends on the specific terminal base you install.

Compatibility and Installation Requirements

• Compatible Terminal Bases: Use with 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, or 1794-TBN.
• Keyswitch Position: Requires keyswitch position 4 for proper installation.
• Adapter Compatibility: Works with 1794 Flex IO communication adapters including Ethernet, ControlNet, Profibus, and Remote I/O.
• Specific Compatible Adapters: Supports 1794-ACN15, 1794-ACNR15, 1794-AND, 1794-AENT, and 1794-AENTR.
• Controller Compatibility: Use with MicroLogix controllers via 1794-ASB and 1794-APB adapters.
• Enclosure Requirement: The module has an open-type enclosure. You must install it inside a protective industrial enclosure.

Frequently Asked Questions (FAQ)

• Q: Is the 1794-OE4 brand new and original?
  A: Yes, we supply only a brand new, original Allen-Bradley 1794-OE4 module.
• Q: What terminal bases work with this module?
  A: It works with 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, 1794-TB3TS, and 1794-TBN bases.
• Q: Does the 1794-OE4 provide channel isolation?
  A: No, the channels are non-isolated. Only I/O to system has 50V isolation.
• Q: What is the conversion rate for all channels?
  A: The module converts all four channels within 1.024 ms maximum.
• Q: Can I use this module with MicroLogix controllers?
  A: Yes, use 1794-ASB or 1794-APB communication adapters for connection.
• Q: What is the voltage output resolution?
  A: The voltage resolution is 2.56 mV per count at 12-bit plus sign.
• Q: What is the resistive load range for current output?
  A: The current output supports a resistive load of 15 to 750 Ω.
• Q: How long does shipping take?
  A: We ship within 5 days using FedEx, UPS, or DHL.
• Q: Do you accept returns?
  A: Yes, we support a 30-day return policy from the date you receive the item.

Contact Information Inquiries: Email us at sales@nex-auto.com or call us via +86 153 9242 9628 (WhatsApp).

Partner NexAuto Technology Limited: https://www.nex-auto.com/