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The DSSB-01C 68300746 belongs to the low-voltage AC drive control system architecture as a control unit, serving as the logic control core for the diode supply unit. Installed between the grid-side power supply and the DC bus, this hardware captures the voltage phase, current of the incoming three-phase grid, and the DC bus voltage. Through the onboard analog signal acquisition circuits and the microprocessor, the unit calculates the gathered electrical metrics to determine the conduction timing for the rectifier bridge components, and distributes pulse trigger signals to control the initial charging sequence and the rectification state of the rectifier bridge.
Pulse interface via ribbon cables/fiber to drive boards for high-voltage isolation
Hardwired feedback pins for sensors, breakers, and fuse switches
PPCS fiber sync bus uploads rectifier parameters and faults to main controllers
The control unit relies on multiple independent low-voltage DC power supplies for operation. Internally, dedicated linear regulators and multi-stage filtering circuits convert the incoming external power into the precise working voltages required by the onboard microprocessor, analog sampling chips, and pulse triggering logic.
To prevent mutual interference between the digital control bus and the analog sampling bus, the DSSB-01C incorporates strict electrical ground partitioning and electromagnetic shielding isolation within the printed circuit board. Upon system power-up, the onboard logic processing unit automatically executes a hardware self-test routine to verify the operational status of critical components, communication link handshake signals, and firmware checksums.
Only after all self-test indicators satisfy the preset safety criteria will the module release a "Ready" status signal and permit the reception of the closing command from the main controller, minimizing the startup risks of the entire drive system.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
ABB DSSB-01C 68300746 CONTROL UNIT Manuals, Datasheets, Drivers, 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.
Metallurgy and Steel Rolling Industry
Installed in high-power drive cabinets of hot-rolling and cold-rolling continuous lines and coilers to control rectifier grid-side waveform stability, preventing DC bus voltage fluctuations caused by frequent large motor start/stops.
Oil, Gas
Used in multi-pump interlocked explosion-proof drive centers for large oil long-distance pipeline pumps and gas water-injection pumps to determine optimal conduction timing for rectifier bridge components.
Rubber and Tire Internal Mixers
Used in high-torque variable speed drive control cabinets of large internal mixers and extruders to maintain a stable rectifier DC output bus under frequent heavy-load impact conditions.
Marine Propulsion and Offshore Engineering
Serves as the main control board for rectifier units in marine propulsion and drilling vessel drive cabinets, handling voltage and breaker states to meet classification society safety standards against salt spray and vibration.
Power Generation and Pumped Storage Stations
Executes microsecond-level sampling on three-phase grid waveforms via onboard high-bandwidth analog acquisition circuits within speed-control drive frames for large boiler ID fans and condensate pumps.
Heavy Mine Hoist Systems
Acts as the core central logic inside rectifier cabinets for underground mine hoists and high-power belt conveyors, controlling initial charging sequence to prevent inrush currents from damaging the grid.
When operating the DSSB-01C 68300746 control board, which drives high-power rectifiers, priority must be given to ensuring that the onboard fiber optic interfaces are clean and that their bending radiuses meet specifications to prevent trigger pulse failures due to signal attenuation. Prior to power-up, verify the stability of the external low-voltage DC power supply, and strictly inspect the tightness of the hardwired connections for the three-phase grid and DC bus voltage sampling.
Regular maintenance requires removing surface industrial dust and strictly prohibits the removal or insertion of multi-core ribbon cables and terminals under power. Following an overcurrent or overvoltage fault trip, the status of the power thyristors and DC fuses must be thoroughly inspected, and re-commissioning should only proceed once a physical short circuit has been completely ruled out.
The ABB DSSB-01C is responsible for sampling real-time electrical parameters of the three-phase grid and the DC bus, precisely calculating and distributing trigger pulses to the rectifier bridge. It features integrated protection logic for overcurrent, overvoltage, and phase imbalance, and synchronizes with the main drive controller via a high-speed bus. Upon detecting any electrical anomaly, the unit executes microsecond-level fault trips to safeguard high-power semiconductor modules.
What type of industrial automation component is the ABB DSSB-01C?
The DSSB-01C is a main control board kit developed as a spare part for ABB inverter drive systems.
Which specific series of ABB inverter drives utilizes the DSSB-01C control unit?
The DSSB-01C is mainly utilized within the ACS800 series cabinet-built AC drives, specifically for the Diode Supply Unit (DSU).
What is the primary function of the DSSB-01C board within the drive cabinet?
The DSSB-01C functions as the interface between the drive's power electronics and control logic, managing signal processing and logic execution.
How do maintenance personnel physically replace a damaged DSSB-01C board onsite?
Technicians must shut off power, undo 9 connectors, open 13 fixing screws, swap the DSSB-01C board, and torque the screws back to 1.5 Nm.
What is the operational voltage range for the I/O channels on the DSSB-01C unit?
The input and output signal channels on the DSSB-01C operate within a standard 0 to 24 VDC range.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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