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Product Introduction
The GE IC695ALG728 RX3i Analog Output Module is a high-performance analog output module developed for the PACSystems RX3i platform. It is designed to provide precise and reliable analog control signals to field devices such as actuators, valves, and variable frequency drives (VFDs). This module converts digital values from the controller into accurate analog outputs, making it essential in process automation, closed-loop control, and monitoring applications.
The IC695ALG728 offers multiple configurable output channels that can operate in both voltage and current modes, supporting a wide range of industrial control requirements. The module includes diagnostic and protection features that ensure stable and consistent operation under varying industrial conditions. Its high accuracy, low drift, and fast response time make it suitable for critical applications demanding fine control and reliability.
Technical Specifications
| Parameter | Description |
|---|---|
| Manufacturer | GE Automation & Controls |
| Product Model | IC695ALG728 |
| Product Type | Analog Output Module |
| Series | PACSystems RX3i |
| Number of Channels | 8 Analog Output Channels |
| Output Signal Type | Voltage or Current |
| Voltage Output Range | 0 to ±10 VDC |
| Current Output Range | 0 to 20 mA or 4 to 20 mA |
| Resolution | 16-bit D/A conversion |
| Output Accuracy | ±0.1% of full scale |
| Output Load (Voltage Mode) | ≥ 1 kΩ |
| Output Load (Current Mode) | ≤ 500 Ω |
| Channel Update Rate | < 2 ms per channel |
| Output Isolation | 2500 VDC optical isolation from system logic |
| Channel-to-Channel Isolation | None (common reference) |
| Power Consumption | 200 mA @ 5 VDC |
| Diagnostics | Open circuit, overcurrent, and output fault detection |
| Configuration Software | Proficy Machine Edition (PAC Machine Edition) |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% non-condensing |
| Mounting Type | RX3i Backplane Mount |
| Dimensions (W × H × D) | 34 x 145 x 140 mm |
| Weight | 0.5 kg |
| Compliance Standards | CE, UL, cUL, RoHS compliant |
| Connector Type | 20-pin removable terminal block |
| Calibration | Factory-calibrated and software-adjustable |
Product Applications
The GE IC695ALG728 analog output module is widely used in advanced automation systems where precision analog control is required. It plays a key role in process regulation and continuous control functions across industries.
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Process Control Systems – Provides control signals to valves, actuators, and dampers for process regulation.
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Manufacturing Automation – Controls motor speed, position, and torque via analog drive signals.
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Power Generation – Used for turbine governor control, generator excitation, and load balancing systems.
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Oil & Gas Industry – Provides analog control for wellhead, compressor, and pipeline systems.
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Water and Wastewater Treatment – Regulates pumps, flow valves, and chemical dosing systems.
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HVAC and Building Automation – Controls heating, cooling, and ventilation actuators for environmental management.
Product Advantages
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High Output Accuracy and Stability
Ensures consistent analog signal generation with 16-bit resolution and minimal drift over temperature changes. -
Dual Output Configuration
Supports both current and voltage output modes, providing flexibility for integration with a variety of field devices. -
Advanced Fault Diagnostics
Built-in monitoring for open circuit, overcurrent, and output faults enhances system reliability and maintenance efficiency. -
Fast Output Response
With a channel update rate of less than 2 ms, it ensures real-time control performance for fast industrial processes. -
Strong Electrical Isolation
Optical isolation between the system logic and field circuits protects the controller from electrical disturbances. -
Seamless Integration
Designed for easy configuration using Proficy Machine Edition, enabling quick setup and flexible system programming. -
Industrial-Grade Design
Robust mechanical construction and wide environmental tolerance ensure long-term operation in harsh environments.
FAQ
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What types of analog output signals does the IC695ALG728 support?
It supports both voltage (0 to ±10 VDC) and current (0–20 mA or 4–20 mA) output signals. -
How many output channels are available on the module?
The module provides 8 independently configurable analog output channels. -
What is the output resolution of the IC695ALG728?
The output resolution is 16-bit, allowing precise signal control. -
Is the module isolated from the main controller logic?
Yes, it features 2500 VDC optical isolation between the system logic and field output circuits. -
Can voltage and current outputs be used simultaneously on different channels?
Yes, each channel can be individually configured for voltage or current output mode as needed. -
What diagnostic functions are included in the module?
The module provides detection for open circuits, overcurrent conditions, and output faults. -
How is the IC695ALG728 configured?
Configuration and calibration are done using GE Proficy Machine Edition software. -
What is the typical load impedance requirement for current outputs?
The recommended load impedance is less than or equal to 500 ohms for current mode operation. -
Does the module provide channel-to-channel isolation?
No, all channels share a common reference and are not isolated from each other. -
What is the output update rate for each channel?
The output update rate is less than 2 milliseconds per channel, ensuring fast and responsive signal changes.
Related Models (Same Series or Function)
| Model | Description |
|---|---|
| IC695ALG600 | 8-channel analog input module for voltage/current signals |
| IC695ALG616 | 16-channel isolated analog input module |
| IC695ALG708 | High-resolution analog input module with fast sampling rate |
| IC695ALG704 | 4-channel thermocouple input module for temperature monitoring |
| IC695ALG626 | 8-channel RTD input module for precise temperature measurement |
| IC695ALG628 | 8-channel analog input module supporting voltage and current |
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