The 1MRK00173-CC is a high-performance Binary I/O (Input/Output) module specifically designed for the ABB Relion 670 and 650 series of protection and control IEDs (Intelligent Electronic Devices). This module serves as the primary interface for processing discrete signals from field equipment, such as circuit breaker status, disconnector positions, and trip commands. Engineered for high-voltage substation environments, it features robust isolation and high-speed signal processing to ensure reliable operation in demanding electrical grids.
Technical Datasheet
Product Specifications
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Model Number: 1MRK00173-CC
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Module Type: Binary Input/Output (BIO)
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Compatibility: Relion 670/650 Series (e.g., RED670, REC670, RET670)
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Input Channels: Typically 9 Binary Inputs
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Output Channels: Typically 6 Binary Outputs (Power outputs)
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Input Threshold: Configurable via hardware jumpers (e.g., 24V, 48V, 110V, 220V DC)
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Output Ratings: 5A Continuous / 30A for 0.5s (Make and Carry)
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Isolation: 2.5 kV AC (50 Hz, 1 min)
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Response Time: <1 ms (Input) / <5 ms (Output)
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Dimensions: Standard Relion 670 I/O slot size
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Weight: 0.52 kg
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Country of Origin: Sweden
Application Areas
The 1MRK00173-CC is a cornerstone of substation automation. It is used to monitor the physical status of high-voltage switchgear and execute critical commands from the protection logic. Common applications include circuit breaker control, interlocking logic, alarm signaling, and remote-to-local control switching. Its high-capacity outputs are capable of directly driving circuit breaker trip coils.
Product Instructions
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Hardware Configuration: Before installation, check the side-mounted jumpers to set the correct voltage threshold for the binary inputs. This must match the substation’s battery voltage (e.g., 110V DC) to ensure reliable signal detection.
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Installation: Power down the Relion IED. Slide the module into the designated I/O slot. Ensure the module is fully seated against the backplane and tighten the front panel screws.
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Wiring: Use shielded cables for binary inputs to minimize electromagnetic interference. Ensure that the terminal block is securely tightened and that no stray wire strands are present.
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Software Mapping: Use the PCM600 (Protection and Control IED Manager) software to map the physical inputs and outputs of the 1MRK00173-CC to the internal logic blocks of the IED.
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Validation: Perform a “Primary Injection” or a loop test to verify that the physical input triggers the correct software flag and that a software command results in the physical closing of the output relay.
Q&A: Frequently Asked Questions
Is the 1MRK00173-CC hot-swappable? No. While many modern modules claim hot-swap capability, ABB recommends powering down the Relion IED before replacing I/O modules to prevent communication errors or accidental tripping of field equipment.
Can I mix different voltages on the binary inputs of one module? No. On the 1MRK00173-CC, the hardware jumpers set the threshold for the entire group of inputs. All signals connected to the module must share the same nominal DC voltage level.
What does the ‘CC’ suffix represent? The ‘CC’ suffix denotes a specific variant of the binary board, usually indicating the density of inputs vs. outputs and the specific contact material used for the output relays (often optimized for heavy-duty switching).
How do I identify a faulty output relay? If the IED logic shows an output is “High” but the physical contact remains open, the relay on the 1MRK00173-CC may be damaged. You can verify this by measuring continuity across the output terminals while forcing the output via PCM600 in “Test Mode.”
Recommended Similar Models
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ABB 1MRK000173-AD (Alternative Binary I/O variant)
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ABB 1MRK000682-AD (Standard I/O Module)
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ABB 1MRK002247-AP (Analog Input Module for Relion 670)
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ABB 1MRK00173-BD (High-density Binary Input variant)
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ABB BIM/BOM (Binary Input/Output Modules for 670 series)
