DC CONTROL MODULE – P/N 2260-000001 (ROSS HILL)

Overview

The Ross Hill DC Control Module 2260-000001 is a high-reliability control unit engineered for SCR (Silicon Controlled Rectifier) systems and heavy-duty DC motor applications widely used in drilling rigs, industrial power cabinets, and high-load motor control assemblies. It regulates SCR firing sequences, phase control, feedback signals, and protective logic to ensure stable and accurate power delivery under extreme operational conditions.

Seven Star LLC supplies genuine Ross Hill control modules, including the 2260-000001, to drilling and industrial power-control projects across Oman and the GCC, with full technical verification and compatibility support.

Operating Principle

The module regulates SCR phase-angle firing, controlling the precise timing at which each silicon controlled rectifier conducts within its AC cycle to deliver a controlled DC output to the connected motor or load. This phase-angle regulation lets the module vary DC power delivery smoothly across the operating range, rather than switching power fully on or off, which is essential for controlling large DC motors like those used in drilling rig draw-works, mud pumps, and top drives.

Protective logic built into the module handles overcurrent detection, synchronization with the AC supply, and feedback signal processing, so that firing commands stay correctly timed and the system responds appropriately to fault conditions rather than continuing to fire SCRs into an already-faulted circuit.

Engineering Design of the 2260-000001

The module is designed to match the Ross Hill 1017-010227 system architecture, giving it a defined compatibility path within Ross Hill’s broader SCR control product line rather than functioning as a generic firing board. Its construction targets the rugged field conditions typical of drilling rig SCR houses and power distribution cabinets, where vibration, temperature extremes, and continuous duty cycles are standard operating conditions rather than exceptions.

Where a direct like-for-like replacement is not available, Ross Hill’s E200 Control Module is documented as a compatible alternative, giving plants a path to keep an SCR system operational even as exact legacy parts become harder to source.

Key Features

• SCR phase-angle firing regulation and triggering
• Overcurrent protection logic and AC synchronization
• Feedback signal handling for closed-loop control accuracy
• Matched compatibility with Ross Hill 1017-010227 systems
• Built for drilling rig and heavy-duty DC drive environments
• Compatible alternative available (E200 Control Module)
• Rugged design for extreme operational conditions
• Genuine Ross Hill manufacture with technical verification

Industrial Applications

The 2260-000001 module is used in rig SCR houses and power distribution cabinets, DC motor control for draw-works, mud pumps, and top drives, drilling floor automation systems, heavy-duty industrial DC drive systems, and marine and offshore power control platforms. It is a core component wherever precise, protected SCR-based DC power control is required for large motor loads.

Across Oman, Muscat, Sohar, Salalah, and the GCC, Seven Star LLC supports drilling contractors and industrial power-control operators as a supplier of genuine Ross Hill control modules, helping projects maintain reliable SCR-based DC drive systems on rigs and in industrial facilities.

Technical Specifications

Request a Quote for DC CONTROL MODULE – P/N 2260-000001 (ROSS HILL)

Contact Seven Star LLC for a quotation, availability, and technical support on the Ross Hill DC Control Module 2260-000001 and other Ross Hill SCR control hardware across Oman and the GCC.

Identifying the Correct Module Before Ordering

SCR control boards from different generations can look similar, so the safest way to confirm a replacement is to read the part number directly from the label on the board being removed and compare it with 2260-000001. Record any revision letter, serial number and assembly markings as well, because drilling contractors often run mixed fleets where rigs were built or refurbished at different times. If the existing board carries a different number, or the SCR house was modified by a previous owner, share photos of the board and the cabinet nameplate with us so compatibility with the 1017-010227 system, or the E200 alternative, can be checked before the order is placed.

Installation and Commissioning

Replacement should be carried out with the SCR bay isolated and locked out, and with the DC bus confirmed discharged. Practical points that save time on the rig:

• Photograph and label every connector and wire before removing the old module, so feedback and firing leads go back in the same positions.
• Handle the board with ESD precautions; electronic firing circuits are sensitive to static damage during storage and fitting.
• Check that connectors, standoffs and grounding points are clean and tight, since vibration on the drill floor loosens hardware over time.
• Transfer any jumper or potentiometer settings from the old board where applicable, following the rig’s SCR system documentation.
• Re-energize in stages and verify firing, current limit and feedback behaviour on each assignment (draw-works, mud pump, top drive) at low load before returning the bay to full duty.

Maintenance and Troubleshooting

Most SCR drive problems that point at the control module are actually caused by the environment around it. Heat, dust and loose terminations are the usual suspects in an SCR house, so keep cabinet air conditioning and filters in good condition and include connector checks in rig move procedures. Typical symptoms worth investigating are unstable motor speed, a bay that trips on overcurrent under normal load, or an SCR bridge that will not phase on. Before condemning the module, confirm the incoming AC supply and synchronization signal, the feedback wiring and the condition of the SCRs themselves. Keeping a tested spare module on the rig is a common practice that turns a long outage into a short board swap.

Drilling and Industrial Use in Oman and the GCC

Land rigs operating in the interior of Oman and across the Gulf work in high ambient temperatures and dusty conditions, which put continuous stress on SCR houses and their electronics. Operators and drilling contractors in these fields rely on availability of legacy control modules to keep older SCR rigs productive between major upgrades, and planned spares holding for modules like the 2260-000001 is part of that strategy.

Sourcing Through Seven Star LLC

Seven Star LLC sources genuine Ross Hill modules for drilling and industrial customers, with part-number verification, condition details and available documentation provided with each quotation. Send the part number, quantity and rig or system reference through our quote request and our team will confirm availability and lead time.

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