I. Product Description
Model: NIOC-02C , Original Factory Part Number: 3AFE64634798
It belongs to the internal control power supply substrate of ABB ACS800 single/multi-drive frequency converter, specifically designed for NDCU main control, optical fiber drive board, I/O circuits, encoder circuits, providing multiple stable isolated DC voltages; it is equipped with complete overvoltage, undervoltage, overcurrent, overheat hardware protection; the PCB has a three-proof coating, resistant to industrial harmonics and electromagnetic interference. It is the core power supply component of the ACS800 drive system, with direct insertion installation, and faults can be replaced separately without overall disassembly.
Simplified Core Parameters
Input Specifications: DC bus power supply compatible with 380–690V power bus; auxiliary backup 24VDC (18~30VDC)
Multiple Outputs: +5V, ±12V, +15V multiple isolated voltage regulation, providing power supply for main control and drive circuits
Protection Mechanism: OV/UV/OC/OT full hardware locking, fault latch-up alarm
Environmental Tolerance: Working temperature – 20℃~+60℃; Storage – 40℃~+85℃; Altitude ≤ 2000m without capacity reduction
Insulation Protection: Strong and weak electrical isolation withstand voltage 600V AC; Protection level IP20 (installed in the cabinet)
Size and Weight: 95×45×75mm, net weight approximately 0.37kg, natural air-cooled cooling
Compatible Models: ACS800 full power range single drive, multi-drive inverter unit, DCS800 direct drive
Application Scenarios
Metallurgy and Steel Industry: Cold and hot rolling machines, coil winding machines, high-temperature furnace hoisting ACS800 multi-drive system power supply core component
Mining and起重： Mine hoist， belt conveyor， port gantry crane high-power frequency control cabinet
Thermal Power / Thermal Power Plant： Exhaust fan， supply fan， coal grinding machine， circulating water pump ACS800 frequency drive
Cement， Papermaking， Chemicals： Compressor， mixer， paper machine multi-axis synchronous drive power supply maintenance replacement
Ships， Offshore Platforms： Auxiliary control power supply for ship certification drive system
Equipment Maintenance and Upgrade： Fault replacement of old ACS800 power supply， plug-and-play， no need to modify program parameters
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