TA31 BP05 ER TW KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB TA31 BP05 ER TW is a synchronous servo motor from the TA Synchronous Servo Motors series. It features a 6-pole design, provides brake torque of 4.5 Nm, and operates at a brake voltage of 24 VDC. The motor has IP54 ingress protection and includes a PTC thermistor sensor for motor protection.
Internal Product Review
The TA31 BP05 ER TW is a KEB synchronous servo motor with a 6-pole design and IP54 protection. Brake performance is especially strong, with 4.5 Nm brake torque and a 35 ms release time supporting controlled stopping behavior. PTC thermistor motor protection adds valuable thermal monitoring for dependable servo duty.
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Product Description:
The TA31 BP05 ER TW is a synchronous servo motor in the TA Synchronous Servo Motors series from KEB. It is intended for closed-loop positioning and speed control in automated machinery, where quick braking response and integrated feedback are required. The motor’s built-in holding brake and resolver simplify wiring and allow direct connection to KEB drive controllers, making it suitable for pick-and-place axes, indexing tables, and similar motion tasks on production lines.
During emergency stops, the spring-applied brake must act quickly. Its engage delay is 2 ms, so current removal triggers mechanical clamping almost instantly. Full coupling is achieved after 7 ms, limiting shaft run-on and preventing axis drift. Static holding capacity is 4.5 Nm, which can secure medium-mass loads against gravity or backlash. The brake coil operates at 24 VDC, matching common PLC power rails and allowing status monitoring with simple relays. Heat generated during steady holding remains moderate because consumption is only 12 W. The housing has an IP54 rating to block dust and water splashes in factory zones, and the windings are protected by a PTC thermistor.
For cycle timing analysis, the brake’s release latency of 35 ms shows how quickly the axis can restart after a safety stop, which is useful when throughput is being evaluated. The rotor-mounted friction disc adds only 0.18 kgcm² of inertia, so acceleration profiles calculated in the motion controller remain responsive despite the integrated brake. Position feedback is supplied by a BRX two-pole resolver that excites at 10 kHz and 7 VAC, giving analog sine-cosine signals with good resistance to electrical noise. Along with the 6-pole stator design and Class 155 insulation system, these features help the motor maintain accurate servo loops during continuous duty in packaging, assembly, and small gantry axes.
