Product Details

Baumuller 3.0125G is an original fieldbus and peripheral interface PCB card for legacy Baumuller modular servo drive platforms. This communication board acts as the external gateway for the servo drive, exchanging motion commands, status feedback and diagnostic data between the main control CPU and upper‑level PLC, HMI or other automation controllers. It supports standard industrial bus protocols and discrete I/O handshaking, bridging internal backplane signals and external automation wiring. The servo bus PCB uses refined signal isolation circuits and surge suppression components to maintain stable communication under heavy electromagnetic interference. It is built on industrial multi‑layer FR4 PCB with conformal coating, protecting delicate communication traces from dust, moisture and corrosive vapors inside control cabinets. As an obsolete and scarce discontinued spare, it serves as a direct drop‑in replacement to restore fieldbus connectivity and external signal exchange for ageing Baumuller servo drive systems.

Basic Parameters

Brand: Baumuller

Model: 3.0125G

Product Type: Servo drive fieldbus communication & peripheral interface PCB card

Main Function: Fieldbus data transmission, command exchange, digital I/O handshaking, signal isolation, communication fault diagnosis

Interfaces: Backplane edge connector, fieldbus terminal port, digital signal terminals, communication status LED indicators

PCB Treatment: Conformal coated multi‑layer circuit board, UL 94V‑0 flame retardant

Mounting: Internal slot plug‑in mounting inside compatible Baumuller servo drive housing

Supply Voltage: 24 V DC auxiliary supply

Net Weight: Approximately 225 g

Condition: Original discontinued industrial spare

Supported Functions

This communication board supports high‑reliability bidirectional data communication for the servo drive. It receives motion setpoints and enable commands from the host automation system and uploads real‑time speed, torque, position and fault information back to the master controller. The servo bus PCB continuously monitors bus signal integrity, detects cable breakage, bus collision and communication timeout, and reports corresponding fault codes to the main control board. It works cooperatively with the main control board, encoder feedback board and gate drive board to complete synchronized axis motion. If this interface board fails, the drive will lose connection with the host controller and cannot receive remote motion instructions; replacing this signal interface board quickly restores all external communication functions.

Core Functions

The core function of this communication board is reliable data exchange and electrical isolation between the servo drive and external automation equipment. It translates backplane internal logic signals into standard fieldbus signals and isolates external wiring noise from the drive’s control loop. It provides real‑time diagnostic information for commissioning and maintenance. It acts as a drop‑in replacement spare to rebuild the communication channel of legacy Baumuller motion machinery and keep automated production lines interconnected normally.

Hardware Specifications & Environmental Features

Operating Temperature: 0°C ~ +60°C

Storage Temperature: -20°C ~ +75°C

Relative Humidity: 5%–95%, non‑condensing

Housing: Bare coated PCB with slot edge connectors

Protection: ESD protection for all signal ports, IP20

Anti‑interference: Onboard differential line drivers and multi‑stage filtering circuits to suppress electromagnetic noise inside cabinets

Compatibility: Matched for legacy Baumuller modular servo drive units

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 drive model compatibility, fieldbus protocol, baud rate setting and pin definition before ordering.

This is from our current stock.

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