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The DATX132 is a torque observer/monitoring board used in ABB drive systems to monitor and compute motor torque in real-time. It is part of the control electronics that enhances drive performance by observing mechanical torque or load on the motor indirectly through electrical measurements. The board processes inputs such as motor currents and voltages, and uses algorithms to estimate the motor's output torque with high accuracy. By providing this feedback to the drive controller, the DATX132 board enables precise torque control, improves speed regulation under varying loads, and can activate protective functions if abnormal torque conditions are detected. The DATX132 is built to the same form-factor as other DATX series boards and plugs into the drive's control rack. It features a microprocessor and analog front-end dedicated to torque calculation, with calibration parameters set to the specific motor/drive. This board operates within the drive's low-voltage control environment (powered by the internal 24 V supply) and is designed for the highest safety and reliability, given that torque monitoring is often critical for drive safety functions. In summary, the DATX132 provides the drive with an internal "torque sensor," allowing for advanced control strategies like torque proving, load sharing, or mechanical overload protection, all without a direct shaft sensor.
| Function | Non-contact torque observer board (calculates/monitors motor torque via electrical measurements) |
| Inputs | Motor phase currents and voltages (from CTs and PTs in drive) – used to compute torque via motor model |
| Outputs | Torque value (as digital data to main controller); alarm triggers if torque exceeds thresholds |
| Update Rate | High-speed computation, updated every control cycle (e.g. every few milliseconds) to track dynamic torque changes |
| Mounting | Pluggable PCB module in drive control section (standard ABB control board size, 40 mm width module) – ~0.9 kg |
| Operating Temp | 0 °C to +55 °C (within drive; extended temp with coated electronics as option) |
| Safety Role | Enhances functional safety – can be used to meet SIL requirements for safe torque off by verifying zero torque before allowing access (when integrated with safety logic) |
| Note | Often used alongside mechanical load observers (DATX133 mechanical torque board) for comprehensive motion monitoring |
