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ABB UAC389AE01 HIEE300888R0001｜PC Board｜
1. Exclusive Control of the Armature Circuit
The module provides precise control of the armature circuit by triggering a 6-pulse or 12-pulse thyristor bridge. Through this control, it regulates the operation of motors and other connected equipment. It can automatically adapt to current transformer (CT) ratios of 1:2500 or 1:4000, enabling accurate current measurement via a dedicated CT interface.
2. Comprehensive Monitoring and Fault Protection
In addition to standard overvoltage, overcurrent, and short-circuit protection functions, the module supports residual current measurement between the armature circuit and ground. Under a 500 V supply, it can detect residual currents as low as approximately 5 mA.
The built-in watchdog function ensures system reliability:
If firmware or internal module abnormalities occur, the system automatically resets.
Thyristor trigger signals are immediately disabled.
Digital input and output states are frozen.
These measures prevent fault propagation and protect the connected equipment.
3. Multi-Dimensional Signal Acquisition
The module supports high-impedance measurement of both AC and DC voltages. Through multiple dedicated interfaces (such as X15, Xu1, Xv1, etc.), it can accurately acquire signals across different voltage ranges.
It also interfaces with current transformers to perform four-channel synchronous measurement of grid-side currents. The collected data is transmitted in real time to the control system, enabling comprehensive operational analysis and state monitoring.
ABB UAC389AE01 HIEE300888R0001｜PC Board｜
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By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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