Baumer electric Rotary Encoder Data Sheet

General Specifications

• Manufacturer: Baumer electric

• Model Number: BHU 03.24G500 – B2 – 5

• Part Series: BHU (Hollow shaft encoder)

• Origin: Swiss made (Frauenfeld, Switzerland)

Technical Data

Feature	Specification
Pulses Per Revolution (PPR)	500 pulses (indicated by “500” in the model code)
Shaft Type	Hollow shaft (clamping ring design)
Output Channels	2 Channels (CHA, CHB) + Reference (optional)
Voltage Supply ($+V_s$)	Typically $5\text{ V DC}$ or $10\text{…}30\text{ V DC}$ (standard for this series)
Construction	Die-cast aluminum/zinc housing for industrial durability

Electrical Connection (Wiring Diagram)

Based on the label on the unit, here is the color-coded pinout for the integrated cable:

Wire Color	Abbreviation	Function
Brown (BN)	$+V_s$	Supply Voltage (Positive)
White (WH)	$0\text{ V}$	Ground / Common
Green (GN)	$CHA$	Incremental Signal A
Yellow (YE)	$CHB$	Incremental Signal B (90° phase shift)
Pink (PK)	n.c.	Not Connected
Screen	CASE	Shield / Case Ground

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Key Features

• Hollow Shaft Design: Allows for direct mounting onto a motor or machine shaft without the need for a separate coupling, saving space and reducing alignment errors.

• Differential Signals: The A and B channels allow the controller to determine the direction of rotation based on which signal leads the other (Quadrature).

• Robust Housing: Designed for Swiss-precision reliability in environments with vibration or electrical noise.

Typical Applications

• Motor Feedback: Measuring RPM and position in automated drive systems.

• Conveyor Systems: Synchronizing belt speeds.

• Textile & Printing: Precise material tension and alignment control.