Reliable Field Output Control for Industrial Automation
The Ovation 1C31218G01 Relay Output Module is designed as an integral component of the Ovation Distributed Control System (DCS), providing dependable relay‑based switching for external field devices. Engineered for rugged industrial environments, this module delivers precise control of actuators, alarms, indicators, and other field loads where electrical isolation and mechanical switching are required.
Built with robust relay contacts and a standardized backplane interface, the 1C31218G01 offers consistent performance and long service life. Its configuration supports flexible control strategies and easy integration with Ovation logic and analog I/O subsystems.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Emerson Ovation |
| Model | 1C31218G01 |
| Module Type | Relay Output Module |
| Output Type | Electromechanical relay contacts |
| Number of Channels | 8 relay outputs |
| Contact Rating | Typically up to 5 A @ 250 VAC / 30 VDC (resistive load) |
| Isolation | Galvanic isolation per channel |
| Backplane Interface | Standard Ovation rack connector |
| Power Requirements | Supplied from rack backplane |
| Operating Temperature | 0 to 55°C (typical industrial range) |
| Storage Temperature | -40 to 70°C |
| Humidity | 5% to 95% non‑condensing |
| Dimensions (HxWxD) | Approx. 125 × 35 × 160 mm |
| Weight | Approx. 0.25 kg |
| Mounting | Rack slot installation |
Typical Industrial Applications
The 1C31218G01 Relay Output Module is widely used in systems requiring reliable on/off control with electrical isolation:
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Actuator and solenoid control in process plants
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Alarm and status indication outputs
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Control of pumps, fans, and small motors (via appropriate interfaces)
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Safety and interlock signal outputs
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Interface control where voltage isolation is required
Advantages
The Ovation 1C31218G01 offers several engineering and operational benefits:
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Reliable Electromechanical Switching: Sturdy relay contacts provide dependable on/off control with inherent electrical isolation.
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Versatile Output Channels: Multiple outputs support common discrete field devices without complex wiring.
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Standard Backplane Integration: Seamless fit into Ovation rack systems simplifies installation and reduces engineering effort.
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Wide Environmental Tolerance: Designed for typical industrial ambient conditions, ensuring consistent performance.
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Modular Expandability: Easy to add or replace within multi‑slot rack assemblies as system requirements evolve.
Technical FAQs
1. How many outputs does the module support?
The module typically provides 8 discrete relay output channels.
2. What type of loads can it switch?
It is suited for resistive and general control loads; inductive loads require appropriate suppression.
3. What is the typical contact rating?
Up to 5 A at 250 VAC or 30 VDC on resistive loads (varies by application).
4. Does the module require external power?
No; it is powered from the rack backplane.
5. Is galvanic isolation provided?
Yes, each relay channel offers electrical isolation via its contacts.
6. Can this module be hot‑swapped?
Hot‑swap capability depends on the Ovation rack and system configuration.
7. What environments is it designed for?
General industrial environments with controlled ambient conditions.
8. Is a fuse or external protection required?
External protection is recommended based on load type and safety standards.
9. How is wiring terminated?
Field wiring is typically terminated via screw terminal blocks at the front of the module.
10. Can it interface with other PLC/DCS systems?
Yes, when integrated through the Ovation I/O network and control logic.
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