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Product Overview:
The Emerson A6740 16-Channel Output Relay Module is designed to provide highly reliable and versatile relay output control in industrial automation systems. This module is part of Emerson’s DeltaV™ control system, offering high-density output channels that allow operators to control and monitor a wide variety of industrial processes.
This relay output module is widely used in applications where remote control, status indication, and switching of external devices such as motors, valves, and alarms are necessary. With 16 channels, it provides the flexibility to control multiple outputs in a compact module that is easy to integrate into existing automation systems.
The A6740 module is designed with robust features to ensure long-term reliability, especially in demanding industrial environments where uptime and system performance are critical. The module also benefits from easy configuration and compatibility with the DeltaV™ systems to streamline deployment and improve operational efficiency.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | A6740 16-Channel Output Relay Module |
| Number of Channels | 16 Output Relay Channels |
| Relay Type | SPDT (Single Pole Double Throw) |
| Relay Rating | 2 A @ 30 VDC, 1 A @ 250 VAC |
| Operating Voltage | 24 V DC (nominal) |
| Power Consumption | 2 W per channel |
| Input Voltage Range | 18-32 V DC |
| Relay Switching Time | < 10 ms |
| Contact Resistance | < 1 Ω |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Weight | 0.45 kg |
| Dimensions (H x W x D) | 60 x 128.4 x 160 mm |
| Mounting Type | DIN Rail Mountable |
| Enclosure Protection | IP20 (suitable for indoor use) |
| Communication Interface | DeltaV™ Communications Interface |
| Certifications | CE, UL, RoHS compliant |
Applications
The A6740 16-Channel Output Relay Module is versatile and can be used in various industrial applications:
- Process Control Systems: The module can be used to switch pumps, motors, valves, and other field devices in a process control environment.
- Alarm and Indication Systems: It can control alarms or indicator lights based on certain system conditions, making it ideal for safety applications.
- Energy Management: Used for switching devices in energy metering and power distribution systems.
- Building Automation: It controls outputs like HVAC systems, lighting, and other critical systems in buildings.
- Machine Control: In factory automation, the module controls actuators and relays for machines and equipment.
- Remote Monitoring: It is used in systems that require remote control and feedback of output devices, such as remote sites or offshore installations.
Advantages
- High Density: The module provides 16 relay output channels, making it suitable for large-scale automation systems where numerous outputs need to be controlled.
- Durability and Reliability: The A6740 module is designed to withstand the harsh industrial environment with extended temperature ranges and robust construction.
- Compact Size: The module is compact and can be easily installed in DIN Rail mountable enclosures, saving valuable space in control panels.
- Flexible Control: With SPDT relay contacts, the module can control a variety of devices, ranging from low-power equipment to heavy machinery.
- Rapid Switching: The < 10 ms switching time allows fast responses to control signals, ensuring efficient system operation.
- Easy Integration: It is fully compatible with Emerson’s DeltaV™ control system, enabling fast integration and straightforward system configuration.
- Wide Voltage Compatibility: The module supports an input voltage range from 18 V to 32 V DC, making it adaptable to various industrial power systems.
Latest News
Emerson’s latest enhancement to the A6740 relay module focuses on improving its fault detection capabilities and system diagnostics. New software updates for the DeltaV™ system allow real-time monitoring of the relay’s performance, ensuring quicker identification of faults and providing actionable data for maintenance teams.
Additionally, Emerson has announced that the A6740 module now supports redundant communication configurations, which makes the system even more reliable in mission-critical environments. This ensures that operations can continue smoothly even in the event of a communication failure.
Furthermore, Emerson has started rolling out new software that enables advanced output control strategies for the A6740, allowing customers to program more sophisticated control schemes to optimize system performance.
Frequently Asked Questions (FAQ)
-
What is the main function of the Emerson A6740 module?
- The A6740 is a 16-channel output relay module used to control devices like motors, valves, alarms, and other field equipment in industrial automation systems.
-
What types of relays are used in this module?
- The module uses SPDT (Single Pole Double Throw) relays, providing both normally open and normally closed contacts for flexibility.
-
What is the power consumption of the module?
- The module consumes 2 W per channel, which results in a total of 32 W for all 16 channels.
-
What is the operating temperature range of the module?
- The operating temperature range of the A6740 is -20°C to +60°C.
-
How can I mount the A6740 module?
- The module is designed to be DIN rail mountable, making it easy to integrate into control panels and industrial enclosures.
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What is the maximum switching capacity for the relay?
- The relay contacts can switch up to 2 A at 30 VDC and 1 A at 250 VAC.
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Can I use the A6740 module with systems other than DeltaV™?
- The A6740 is primarily designed for DeltaV™ systems but can potentially be used in other systems with the correct interface or adapters.
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What is the weight and size of the module?
- The module weighs 0.45 kg and has dimensions of 60 x 128.4 x 160 mm.
-
Does the A6740 module support redundant communications?
- Yes, the A6740 supports redundant communication configurations, ensuring greater system reliability.
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What certifications does the A6740 module have?
- The module is CE and UL certified and is RoHS compliant.
Recommended Related Models from the Same Series
| Model Number | Description |
|---|---|
| A6741 | 8-Channel Output Relay Module |
| A6750 | 16-Channel Output Relay Module with enhanced diagnostics |
| A6742 | 4-Channel Output Relay Module |
| A6760 | 32-Channel Output Relay Module |
| A6770 | 8-Channel Digital Output Module |
| A6700 | High-Speed Output Relay Module |
| A6755 | Isolated Output Relay Module |
| A6780 | Advanced Output Relay Module with redundancy |
| A6765 | 16-Channel Digital Output Module |
| A6781 | 4-Channel Isolated Output Relay Module |
Popular Models from Emerson
| Model Number | Description |
|---|---|
| DeltaV™ DCS | Distributed Control System for process automation |
| A6700 | High-Speed Digital Output Module |
| A6710 | 4-Channel Digital Input Module |
| A6720 | 8-Channel Digital Output Module |
| A6730 | 16-Channel Digital Input Module |
| A6745 | Isolated Output Relay Module with diagnostic features |
| A6756 | Multi-purpose I/O Module |
| A6782 | 16-Channel Temperature Measurement Module |
| A6790 | 8-Channel Universal Input Module |
| A6705 | Analog Output Relay Module |
