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SDCS-PIN-41

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ABB SDCS-PIN-41 is a Pulse Transformer Board that forms part of the power interface for DCS converter modules (A5/A6/A7, C4) with a current range of 900 A to 5200 A, working in conjunction with the SDCS-PIN-51 Measuring Board.
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Technical specifications for SDCS-PIN-41

  • Manufacturer:
    ABB
  • Part Number:
    SDCS-PIN-41
  • Product Family:
    ABB Drives
  • Product Type:
    Pulse Transformer Board
  • Current range:
    900 A to 5200 A
  • Storage temperature:
    -40 ... +55°C
  • Transport temperature:
    -40 ... +70°C
  • Relative humidity:
    5 ... 50 %, no condensation
  • Degree of protection:
    IP 00
  • Pollution degree:
    2
  • Matching board card:
    SDCS-PIN-51 is used in conjunction
  • Weight:
    0.56 kg
  • Estimated shipping dimensions:
    27x10x3.4cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Sweden
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Monitoring & Control Safety & Compliance

Features:

  • Delivers Isolated Trigger Pulses from Control Electronics to Power Stage Thyristors
  • Embeds Current and Voltage Sensing Circuits for AC and DC Bus Monitoring
  • Matched to the SDCS-PIN-51 Measurement Board for Complete Power Interface Coverage
The SDCS-PIN-41 functions as the Pulse Transformer Board in ABB DCS converter modules A5, A6, A7 and C4, providing isolated gate trigger pulses to power thyristors through six on-board pulse transformers and their associated amplifier circuits. It continuously processes current signals from the main AC input current transformers, rectifies them via diode bridges, and scales the signals to a 1.5 V rated current value through load resistors. The board also measures U1, V1, W1 AC voltages and C1(+), D1(-) DC voltages using high-value resistor chains, with scaling accomplished by cutting short-circuit wires to activate 1 MΩ resistors. Rated for industrial environments, the SDCS-PIN-41 typically operates over a -10 °C to +70 °C temperature range with isolation voltage no less than 2500 V. Since 1998, the SDCS-PIN-41A variant has been introduced as a fully interchangeable replacement, and since mid-2005 the SDCS-PIN-48 version supersedes both the SDCS-PIN-41 and SDCS-PIN-41A in newly delivered converters.

The SDCS-PIN-41 provides essential pulse distribution and measurement functions common to the entire converter power interface, and is a critical component of the firing and monitoring signal path, directly affecting the proper, normal operation of the overall DCS drive system. One SDCS-PIN-41 board is required per converter module depending on the drive current rating, covering applications from 900 A up to 5200 A. The SDCS-PIN-41 is always installed together with the SDCS-PIN-51 measurement board, occupying dedicated slots within the converter power interface assembly.

For proper measurement configuration, the SDCS-PIN-41 requires precise adjustment of on-board resistors R1 through R21 to match the rated motor current, while resistors R22 through R26 must be cut according to the current coding table to enable current zero-crossing detection. All five voltage measurement resistor chains must be adjusted uniformly by cutting the corresponding short-circuit conductors. It is important to note that the main circuit voltage signals on the SDCS-PIN-41 are not fully galvanically isolated from the control board, resulting in a ground leakage current of less than 1 mA.

The SDCS-PIN-41 ABB Pulse Transformer Board may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB SDCS-PIN-41 Pulse Transformer Board Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
ABB SDCS-PIN-41 Pulse Transformer Board Specs

General

  • Manufacturer ABB
  • Model SDCS-PIN-41
  • Condition New Original ready stock
  • Product Family SDCS-PIN-41A,SDCS-PIN-4,SDCS-PIN-48
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • DC Drive Systems: Primarily integrated into ABB DCS500 and DCS600 industrial drives.
  • Thyristor Power Converters: Used in large-scale power conversion for industries such as metal processing, pulp and paper, and mining.
  • Heavy Machinery Control: Essential for high-torque applications including crane drives, extruders, and conveyors.
  • Galvanic Isolation: Serves as a bridge that safely isolates low-voltage control signals from high-voltage power circuits.
  • Firing Pulse Distribution: Responsibly handles the precise timing and distribution of firing pulses to the thyristors to regulate motor speed and torque.
  • Signal Feedback: Works in conjunction with the SDCS-CON (Control Board) to provide feedback on voltage and current scaling.
  • Diagnostic Indicators: Often features onboard LEDs or test points to monitor the status of the firing pulses and power supply health.
  • Voltage Measurement: Facilitates the monitoring of the actual DC link voltage and armature current for closed-loop control.
  • Electrical Isolation: Uses pulse transformers to provide high-level galvanic isolation, protecting control hardware from power-side transients.
  • Fault Protection: Supports system-level safety by detecting missing phases or synchronization errors, triggering immediate drive trips to prevent hardware damage.
  • CE & UL Standards: Designed to comply with international industrial standards for electromagnetic compatibility (EMC) and electrical safety.
  • Operational Safety: Designed with specific creepage and clearance distances to handle dangerous industrial voltages (typically up to 600V or higher depending on the drive rating).
Description
The SDCS-PIN-41 is a core component of the power interface for ABB DCS converter modules (models A5/A6/A7 and C4) rated 900 A to 5200 A, paired exclusively with the SDCS-PIN-51 Measuring Board to enable complete power interface functionality. It supports connection configurations for both 2-quadrant and 4-quadrant applications, adapting to different converter construction types for flexible integration.

First introduced in earlier DCS converter units, the SDCS-PIN-41 was later replaced by the SDCS-PIN-41A (from 1998) and SDCS-PIN-48 (from mid-2005), with both successors offering full compatibility as drop-in replacements for existing units. The board meets strict environmental specifications, including storage temperatures from -40°C to +55°C, transport temperatures from -40°C to +70°C, and operation in 5–50% non-condensing humidity, with an IP 00 protection degree and Pollution Degree 2 rating for industrial environments.
Alternative Names
SDCS-P1N-41 SDCS-PIN-4I SDC-PIN-41 SDCS-PIN41 SDCS PIN 41 SDCSPIN41 SDCS-PIN-41 3BSE004939R1
Technical notes
Designed for high-voltage environments, the ABB SDCS-PIN-41 provides robust electrical isolation (typically rated up to 2500 V) to protect sensitive control electronics from high-power circuitry. The SDCS-PIN-41 is typically integrated into the DCS500 and DCS600 architectures (A5-A7 and C4 racks) to ensure stable switching performance in both two-quadrant and four-quadrant operating modes.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which converters are compatible with SDCS-PIN-41?
DCS modules A5/A6/A7, C4 (900A - 5200a).
What board is paired with SDCS-PIN-41?
SDCS-PIN-51 measurement board.
What is the storage temperature range of SDCS-PIN-41?
-40℃ to +55℃.
What is the protection level of SDCS-PIN-41?
ip00 (Class 2 contamination).

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