+86 13313703791
+86 13313703791
seren@ymgkplc.com
Description
The ABB BCU‑12 (3AUA0000110430) is an upgraded brake control unit for ABB ACS series variable frequency drives, specially designed for heavy‑duty lifting and hoisting applications. Compared with BCU‑02, BCU‑12 supports dual‑brake output channels. It receives torque‑based brake‑control commands from the drive, accurately controls the pull‑in and release timing of external mechanical brakes, and feeds real‑time brake‑status signals back to the frequency converter. It effectively prevents load slipping during motor start‑up and stop‑down, improves safety for cranes and vertical lifting equipment. It is widely used as spare‑part replacement for legacy ABB drive systems.
Series
ABB Drive Brake Control Unit Series. BCU‑12 is the enhanced version of BCU‑02, compatible with ABB ACS800, ACS850 series drives for hoist applications. It implements torque‑brake interlock logic for single‑brake or dual‑brake mechanical lifting systems.
Product Features
- Dual relay outputs for supporting two independent mechanical brakes for heavy‑load lifting scenarios
- Precise torque‑synchronized brake release & closing sequence control for vertical load applications
- Digital bus interface for command reception and brake‑status feedback to ABB drive
- 24 VDC auxiliary power supply input, built‑in short‑circuit and overload protection
- DIN‑rail mounting, compact modular design for cabinet installation
- Front‑panel multi‑LED indicators for power supply, operating status and fault alarm
- Enhanced fault diagnosis for brake‑coil circuit abnormality and control‑channel failure
- Optimized for crane, hoist and heavy‑duty vertical‑motion equipment to eliminate load‑drop risks
Product Parameters
| Item | Parameter |
|---|---|
| Part Number | 3AUA0000110430 |
| Power Supply | 24 VDC auxiliary power |
| Brake Control Output | Dual independent relay contact outputs |
| Mounting Method | DIN‑rail installation |
| Drive Compatibility | ABB ACS800, ACS850 series drives |
| Protection | Short‑circuit & overload protection |
| Indicator | Power / Status / Fault multi‑LED indicators |
| Operating Temperature | 0°C ~ +55°C |
| Storage Temperature | -40°C ~ +70°C |
| Humidity | 5‑95% RH, non‑condensing |
Product Specifications
- Unit Model：BCU‑12
- Part No：3AUA0000110430
- Brand：ABB
- Series：Drive Brake Control Unit
- Weight：Approx. 0.32 kg
- Dimensions：75 × 22.5 × 110 mm
Function
- Receive torque‑linked brake‑logic commands from ABB frequency converter
- Output dual‑channel relay signals to control pull‑in and release of one or two mechanical brake coils
- Realize torque‑brake interlock timing, avoid load slipping for vertical‑axis heavy‑duty equipment
- Transmit brake working‑status feedback signals back to drive unit
- Visualize power‑on, running and fault conditions via front‑panel LED lamps
- Detect short‑circuit and overload faults on brake‑coil control circuits
Purpose
Provide dual‑brake sequence control for heavy‑duty lifting ABB drive systems; replace defective brake control hardware, guarantee safe and reliable mechanical‑brake action for cranes and hoisting machinery, prevent safety hazards caused by abnormal brake logic.
Application Fields
Port cranes, tower cranes, heavy‑duty material lifting equipment, metallurgical vertical‑motion machinery, multi‑brake hoist systems, legacy ABB drive‑system maintenance & retrofitting.
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ABB BCU‑12 3AUA0000110430 brake control unit
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- Phone: +86 13313703791
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