Product Details

Baumuller 351981 is an original BUM60 servo drive power module and reliable motion control drive unit, the part identifier for the BUM60-08/16-54-B-001 series servo power stage from Baumüller. This baumuller drive power stage converts three‑phase AC mains supply into regulated variable three‑phase output to drive matched Baumüller AC servo motors, supporting position, speed and torque closed‑loop control for high‑dynamic machinery. It integrates IGBT power switching components, DC link bus, braking circuit and onboard sensing for current and voltage monitoring. The module connects to the separate control motherboard via internal bus, accepting motion commands and encoder feedback signals to deliver precise servo output. It is equipped with front status LEDs for power, running state and fault indication, together with heavy‑duty power terminals for motor, mains and brake resistor wiring. With reinforced power layout and built‑in thermal monitoring, this BUM60 power module can sustain continuous operation under heavy cyclic loads inside machine cabinets. As a discontinued scarce original spare, this servo drive unit serves as a drop‑in replacement to restore full power output and motion performance for ageing Baumüller BUM60 automation lines.

Basic Parameters

Brand: Baumuller (Baumüller Nürnberg GmbH)

Model: 351981, corresponds to BUM60-08/16-54-B-001

Product Type: BUM60 Series Servo Drive Power Stage Module

Input Power: 400–480 VAC three‑phase

Rated Output Current: 16 A

Control Mode: Torque, speed, position closed‑loop regulation

Power Device: IGBT power converter

Built‑in Function: Dynamic braking, DC link monitoring, current sensing

Indicator: LED for power, run, fault and overheat alarm

Cooling: Forced air fan cooling

Mounting: Cabinet panel mounting

Product Status: Discontinued original industrial spare

Net Weight: Approximately 9.2 kg

Supported Functions

This BUM60 power module executes high‑power energy conversion for the servo motion system. The servo drive unit receives setpoint instructions from the drive control board and dynamically adjusts output current to maintain stable torque, velocity and positioning accuracy. This baumuller drive power stage supports electronic gearing, homing, jog operation and soft limit monitoring to protect mechanical assemblies. It continuously tracks internal temperature, bus voltage and output current; once overcurrent, overvoltage, undervoltage or overtemperature thresholds are exceeded, it triggers fault lockout and cuts off power output. It records fault codes for quick troubleshooting and reports abnormal status to the host control system. It works perfectly with BUM60 control boards, Baumüller servo motors, encoder cables and external braking resistors to build a complete high‑precision servo motion loop.

Core Functions

As the power core of the BUM60 servo system, this BUM60 power module supplies the high dynamic adjustable power required by the servo motor. Its integrated protection circuits reduce the risk of damage during overload and mains fluctuation, and the standard BUM60 architecture enables straightforward swap for maintenance. This servo drive unit works as a direct spare to rebuild power driving capability for legacy Baumüller motion control equipment.

Hardware Specifications & Environmental Features

Operating Temperature: 0°C ~ +50°C

Storage Temperature: -20°C ~ +75°C

Relative Humidity: 5%–90%, non‑condensing

Housing: Heavy metal enclosed power unit, IP20

Protection: Overcurrent, overvoltage, undervoltage, overtemperature, short‑circuit, stall protection

Anti-interference: Internal EMI filter, isolated command interface, power circuit shielding

Compatibility: BUM60 control motherboard, matching Baumüller AC servo motors, encoder feedback assemblies

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm complete BUM60 part variant, mains voltage, motor current rating and firmware compatibility before ordering.

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