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3A99161G01

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3A99161G01
June 05, 2026

3A99161G01

3A99161G01 is a 8-channel analog output module belonging to Ovation SUB8 Quad Bus I/O family, matching the previously listed QBI card 3A99160G02, SUB8 master cards 3A99158G01 /3A99159G03 for SUB8 rack bus communication. Also marked with alternate part code 2840A21G01 on hardware label. It converts digital commands from Ovation DPU into standard 4–20mA analog signals to drive field actuators, control valves, inverter setpoints and positioning equipment.

Description

1. Product Overview

3A99161G01 is a 8-channel analog output module belonging to Ovation SUB8 Quad Bus I/O family, matching the previously listed QBI card 3A99160G02, SUB8 master cards 3A99158G01 /3A99159G03 for SUB8 rack bus communication. Also marked with alternate part code 2840A21G01 on hardware label. It converts digital commands from Ovation DPU into standard 4–20mA analog signals to drive field actuators, control valves, inverter setpoints and positioning equipment.

2. Electrical Specifications

  • Channel configuration: 8 isolated analog output channels in quad-bus architecture; standard industry 4–20mA current output, field passive load driven.

  • Backplane supply: +5VDC & ±12VDC powered via SUB8 rack backplane; typical power consumption ≤4.1W.

  • Galvanic isolation: Each channel isolated 1000VAC from internal bus to eliminate field EMI interference.

  • Output load capacity: Max 750Ω per channel for 4–20mA loop; over-load automatic current limiting protection.

  • Conversion precision: ≤0.1% full scale accuracy; update cycle of all channels ≤3ms, supports closed-loop regulation.

  • Built-in diagnostics: Loop open-circuit detection, short-circuit protection per individual channel.

3. Mechanical & Environmental Data

  • Form factor: Standard plug-in PCB card for Ovation SUB8 rack; dimension identical with QBI series: 260mm×100mm×25mm; full hot-swap supported without rack power cut-off.

  • Operating ambient: -40℃ ~ +70℃; storage temperature: -45℃ ~ +85℃; 5%~95%RH non-condensing humidity, CE EMC certified.

4. Front Panel LED & Core Functions

LED Indicators

  • POWER (Green): Module backplane power normal

  • RUN (Green): Healthy Quad Bus communication with SUB8 master card

  • CH1~CH8 LED: Channel working indicator, lit when output loop is active

  • FAULT (Red): Lights on for channel open/short or onboard hardware failure

Key Features

  1. Hot-swap maintenance: Replace single module online without interrupting other I/O loops on same rack.

  2. Per-channel fault diagnosis: Open/short loop fault uploaded to DPU for real-time system alarm.

  3. Redundant bus compatible: Works with redundant 3A99159G03 master cards for full SUB8 bus redundancy.

  4. Software configurable: Set output range, fail-safe value (freeze/0mA/20mA) via Ovation Developer configuration software.

5. Typical Industrial Application

  • Boiler feedwater valve, fuel damper, draft fan damper positioning control in thermal power plants.

  • Control loop regulation for regulating valves, pump speed setpoint in petrochemical & refining facilities.

  • Flow/pressure closed-loop control for wastewater and garbage incineration DCS control system.

6. Matching SUB8 Series Part List

  • DI Card: 3A99160G02 (QBI 16CH Digital Input)

  • AO Card: 3A99161G01 (QAO 8CH Analog Output)

  • DO Card: 3A99162G01 (QBO Digital Output)

  • SUB8 Bus Master: 3A99158G01 /3A99159G03


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