Product Short Description
Product Name: Ovation Relay Output Base Assembly (Ovation 继电器输出基座)
Product Introduction: The Emerson (formerly Westinghouse) 5A26458G05 is a relay output base assembly specifically designed for Ovation DCS local I/O cabinets. It serves as the power amplification and isolation execution unit for DO (Digital Output) signals, receiving weak-current commands from electronic modules (IOP) and outputting strong-current dry contacts to drive field devices.
Description
Core Functions:
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Weak-to-Strong Current Drive: Receives 24VDC weak signal from DO electronic module (IOP), drives onboard high-power relay
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SPDT Dry Contact Output: Directly controls motor contactors, solenoid valves, electric valves, audible/visual alarms, and other AC220V/DC24V loads (max 5A)
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Channel Isolation & Fault Protection: 16 independent relays with 500Vrms inter-channel electrical isolation; onboard surge suppression, freewheeling diode, and fuses
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Seamless Ovation I/O Adaptation: Standard Ovation bus interface, plug-and-play, supports hot-swapping
Technical Specifications:
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Type: Relay Output Base (pure execution base, no electronic control logic)
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Manufacturer: Emerson/Westinghouse (US original, assembled in Singapore)
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Installation Position: Ovation local I/O rack, paired with 1C31222G01 (relay output panel) and 1C31122G01 (DO electronic module)
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Dimensions/Weight: Approx. 483 × 88 × 30mm (19-inch/2U), approx. 1.5kg
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Channels: 16 independent relays
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Contact Rating: 5A max load
Application Scenarios:
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DCS logic → weak-current command → strong-current execution complete control link
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Compatible with Ovation redundant architecture for automatic failover
Installation & Usage Notes:
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Must be installed in Ovation standard I/O rack
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Pair with 1C31222G01 relay output panel and 1C31122G01 DO electronic module
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Per-channel LED indicator for local visibility of operation/fault status
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