Epro A6740/10 16-Channel Output Relay Module
$178.00
$390.00
Description
Product Description
The A6740/10 relay output module is engineered by Emerson EPRO for integration within AMS 6500 machinery protection systems. It provides a reliable interface between monitoring modules and external control circuits by converting diagnostic conditions into discrete relay outputs.
This module is designed for safety-critical turbomachinery applications where rapid and deterministic switching is essential. It processes system states such as normal operation, alert, and trip conditions, and translates them into configurable relay actions for alarms, shutdowns, or interlocks.
Its compact Eurocard format and hot-swappable capability allow maintenance without interrupting system operation, making it suitable for high-availability installations.
Functional Overview
The A6740/10 serves as an output execution layer within the protection system. It collects input signals from monitoring cards and applies programmable logic to determine relay activation.
Key capabilities include:
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Mapping multiple condition signals to relay outputs
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Configurable logic processing for complex protection strategies
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Time-delayed switching for controlled response sequences
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Support for redundant and voting-based logic schemes
Technical Specifications
Relay Output Section
| Parameter | Specification |
|---|---|
| Number of Outputs | 16 SPDT (Form C) relays |
| Contact Rating | 48 V DC, 1 A |
| Control Voltage | 13–32 V DC |
| Relay Modes | NO/NC selectable |
| Energization | Normally energized or de-energized selectable |
| Switching Delay | Adjustable from 0 to 30 seconds |
Logic Processing
| Parameter | Specification |
|---|---|
| Supported Logic | AND, OR, 2-out-of-3 voting, OFF |
| Max Logic Expressions | Up to 30 per module |
| Input Signals | Up to 60 (Alert, Danger, OK states from system channels) |
System Integration
| Parameter | Specification |
|---|---|
| Platform | AMS 6500 (IMR6500 rack) |
| Module Format | 3U Eurocard |
| Width | 10 TE |
| Slot Requirement | 2 slots |
| Hot Swap | Supported |
| Compliance | API 670 |
Electrical and Environmental
| Parameter | Specification |
|---|---|
| Power Consumption | Max. 6 W |
| Operating Temperature | 0°C to +65°C |
| Storage Temperature | –40°C to +70°C |
| Humidity | 5–95% non-condensing |
| Vibration | IEC 68-2-6 compliant |
| Shock | IEC 68-2-29 compliant (98 m/s², 16 ms) |
| EMC | EN 50081-1 / EN 50082-2 |
Mechanical Data
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Dimensions: 54.46 × 128.4 × 160 mm
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Weight: 0.32 kg
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Protection Rating: IP00 (module), IP20 (front panel)
Application Areas
The A6740/10 is implemented in machinery protection systems for critical rotating assets, including:
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Steam and gas turbines
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Compressors and turbo-expanders
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Hydroelectric turbine systems
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Process industry rotating equipment
Comparison with A6740/12
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A6740/10: Optimized for AMS 6500 racks (10 TE width)
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A6740/12: Designed for MMS 6000 systems (12 TE width)
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Both provide 16 relay outputs and similar logic capabilities
FAQ
Q: Can this module be replaced during operation?
A: Yes, the module supports hot-swapping in AMS 6500 systems, allowing replacement without shutting down the rack.
Q: What type of logic can be configured?
A: The module supports AND, OR, and 2-out-of-3 voting logic, with up to 30 programmable expressions.
Q: How many input signals can be processed?
A: Up to 60 input signals from system monitoring channels can be evaluated.
Q: Is this module suitable for safety-critical applications?
A: Yes, it is designed in accordance with API 670 standards for turbomachinery protection.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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