The ABB 1MRK000173-BER05, also cataloged as the 1MRK000173-BER05 Binary I/O Module, operates as a dedicated hardware component for binary status acquisition and control trip command execution within Relion 600 subrack protection systems.

Hardware Designation & Architecture

• 1MRK000173-BER05: Full catalog part number specifying board layout and voltage threshold ratings.

• BER05: Hardware variant designating 16 binary inputs paired with 10 binary relay outputs.

• Relion 600 Series: Target protection and control IED platform chassis architecture.

Technical Parameters

Subrack Interface & Internal Communication

The card interfaces directly with the main chassis via the internal bus, maintaining backplane bus communication velocity for rapid event logging. Embedded logic circuits enable systematic I/O density scaling across empty card slots, while onboard memory routines enforce firmware flash compatibility checks with the master central processing unit prior to operation.

Delivery Package

• 1x ABB 1MRK000173-BER05 Binary I/O Module

• 1x Conductive anti-static protective enclosure

Installation Guidelines & Wiring Standards

Chassis Slot Insertion

• Align the card edges with the designated Relion 600 bay guide rails.

• Slide the board smoothly inward until the rear multi-pin connector seats firmly into the backplane.

• Secure the top and bottom panel captive screws to 0.5 Nm torque to establish chassis grounding.

Terminal Connections and Shielding

• Connect input and output wiring via dedicated terminal blocks using copper conductors up to 2.5 mm2.

• Ensure all field signal cable shields are clamped to the panel earth bar at the point of cabinet entry.

• Maintain a minimum separation distance of 200 mm between binary signal conductors and high-voltage AC current transformer secondary circuits.

Technical Support FAQs

• What is the ON-state voltage threshold for the binary inputs?

  A logical ON state is registered when the applied input signal exceeds 70% of the nominal rated DC voltage.

• What are the maximum continuous voltage and current limits for the output relay contacts?

  The output contacts are rated for a maximum continuous switching capacity of 5 A at 250 VAC or 30 VDC.

• Is the 1MRK000173-BER05 module hot-swappable during operation?

  No. System power to the Relion 600 enclosure must be de-energized prior to removing or inserting the module.

• What level of electrical isolation is provided between channels and internal logic?

  The module features a dielectric galvanic isolation rating of 2.5 kV AC between field circuitry and backplane electronics.

• What nominal DC voltage levels are compatible with the binary inputs?

  The binary input channels support standard control voltages of 24 VDC, 48 VDC, 110 VDC, and 125 VDC.

• How fast does the module execute input state changes and output commands?

  The total response time for state detection and output activation executes within less than 10 ms.

• How does the unit maintain electrical ground continuity with the rack?

  Grounding is maintained through the metallic front panel plate and captive mounting screws locked to the subrack frame.

• What happens if a firmware revision mismatch occurs during replacement?

  The host CPU executes firmware flash compatibility routines during startup to block incompatible board initialization.