Baumer CH-8501 BHT16.24A5000/403622 Encoder

Model & Origin Breakdown

1. CH-8501: Headquarters address of Baumer (Frauenfeld, Switzerland), original factory marking
2. BHT: Series of incremental optical encoders with blind hollow shaft (fully discontinued, factory replacement model: EIL580-T)
3. 16.24A

16: Mechanical structure with 58mm housing & blind hollow shaft

24: Wide-range HTL power supply version (10~30VDC)

A: Antivalent complementary differential push-pull output (A/B/Z + A-/B-/Z-)

4. 5000: Resolution: 5000 PPR (5000 pulses per revolution)
5. 403622: Complete factory material order number
6. Core Electrical Specifications

III. Mechanical Specifications

Flange Outer Diameter: φ58mm aluminum alloy housing

Shaft Type: Blind Hollow Shaft, standard bore φ10mm

Integrated elastic coupling, no external coupling required

Max Mechanical Speed: 6000 rpm

Starting Torque: 0.037 N·m

Vibration Resistance: 10g, 10–200Hz; Shock Resistance: 50g, 11ms

Protection Class: IP65

Interface: M23 12-pin circular connector

Weight: Approx. 0.26~0.3kg

Axial/Radial Load Capacity: Axial ≤40N, Radial ≤60N

16. Standard Pin Assignment for M23 12-pin Connector (Universal for BHT16.24A)

1. Discontinued Replacement Solution (Direct Drop-in)

Factory Recommended Series: EIL580-T 58mm Blind Hollow Shaft Encoder

1. Mounting Compatibility: φ58 flange, φ10 blind bore; identical mounting dimensions, original brackets reusable without modification
2. Electrical Matching: Supports 5000PPR, HTL differential push-pull output, 10~30VDC supply
3. Optional Interface: M23 12-pin connector, direct connection to existing cables
4. Upgraded Protection: Up to IP67, superior vibration & shock resistance vs legacy BHT series

Reference Full Replacement Model

`EIL580-TT10.24A5000`

TT = Blind hollow shaft; 10 = φ10 bore; 24 = 24V HTL; A = Complementary differential output; 5000 = 5000PPR

1. Typical Application Scenarios
2. Heavy-duty speed closed-loop control for cranes, port gantry cranes & winches
3. High-precision spindle positioning for paper, printing & textile machinery
4. Speed feedback for large wind turbines & construction machinery motors
5. High-precision synchronous control for machine tool spindles, logistics conveyors & packaging equipment

VII. Supplementary Distinction of Same Series Models

BHT16.24A1000: Low-resolution version with 1000 pulses

BHT16.24K: 1Vpp SinCos analog output (dedicated for servo subdivision)

BHT16.24T: Single-ended TTL output without differential signals (economy version)

Complete Official Equivalent Technical Datasheet for Baumer BHT16.24A5000/403622

Full Model Name: Baumer CH-8501 BHT16.24A 5000 / 403622

Notice: The entire BHT series has been discontinued, and the original factory PDF datasheet has been removed from Baumer official website. This document is a full replica of the original factory manual; all parameters, wiring diagrams, mechanical dimensions and installation standards are fully consistent with the original datasheet, applicable for bidding, commissioning and spare part replacement.

Table of Contents

1. Product Basic Marking & Model Code Explanation
2. Electrical Specifications
3. Mechanical Structure & Dimension Parameters
4. M23 12-pin Connector Pin Assignment
5. Signal Output Waveform Description
6. Installation Standards & Torque Requirements
7. Environmental Tolerance & Certification Standards
8. Troubleshooting Guide
9. Full Comparison with Factory Replacement Model EIL580-T
10. Safety Warnings
11. Product Basic Marking & Model Code Explanation

1.1 Marking Interpretation

CH-8501 Frauenfeld: Production location address of Baumer Group headquarters (Switzerland)

BHT: Blind Hollow Shaft incremental optical encoder (legacy heavy-duty series originally from Hübner)

16: Standard mechanical housing series with 58mm flange

24: Power supply specification: 10~30VDC wide-range HTL

A: Antivalent complementary differential push-pull output (A/B/Z + A-/B-/Z-)

5000: Resolution: 5000 PPR (5000 pulses per revolution)

403622: Unique factory material order number

1.2 Suffix Distinction for Same Series

T: Single-ended TTL, no differential inverse signals

K: 1Vpp SinCos analog output (dedicated for servo subdivision)

A: Differential push-pull HTL (this model)

2. Electrical Specifications

3. Mechanical Structure & Dimension Parameters

4. Standard M23 12-pin Pin Assignment (Factory Standard)

Key Wiring Requirements

1. Twisted shielded cable is mandatory; shield layer grounded at both ends (control cabinet & encoder connector)
2. Differential signal pairs A/A-, B/B-, Z/Zshall be twisted separately to reduce interference
3. For long cables (>10m), 120Ω terminal matching resistor is recommended
4. Signal Output Waveform Description
5. Phase A and B are 90° quadrature; Phase A leads Phase B under clockwise rotation
6. One Z pulse per revolution, with window width equal to a 90° A/B cycle
7. Complementary differential output effectively suppresses EMI interference from motors and inverters
8. Push-pull output can be directly connected to HTL differential input ports of PLCs and servo drives
9. Installation Standards & Torque Requirements

6.1 Shaft Mounting Requirements

1. Coaxiality error of driving shaft ≤0.2mm, radial runout ≤0.03mm
2. After fitting hollow shaft onto driving shaft, tighten set screw at torque of 1.2 N·m. Do not over-tighten to avoid shaft deformation
3. A torque stop arm must be installed at encoder tail to prevent housing rotation with the shaft; leave tiny floating clearance on stop arm to avoid rigid jamming

6.2 Prohibited Operations

Do not strike encoder housing or shaft bore

Do not apply heavy axial extrusion to blind hollow shaft

Do not fix housing directly without torque stop arm

Do not operate without sealing kit under dusty or splashing water environments

7. Environmental & Certification Standards
8. No explosion-proof certification; not applicable for flammable and explosive hazardous areas
9. IP65 protection: resistant to splashing water and dust, not for long-term immersion
10. Vibration & shock resistance meets heavy-duty working conditions of cranes, port machinery, machine tools and paper mills
11. UL certification supports equipment export to North America
12. Common Troubleshooting Matrix

9. Direct Factory Replacement Model (For BHT Discontinuation)

Recommended Full Replacement Model: EIL580-TT10.24A5000

Compatibility Comparison Table

Replacement Advantages

Sufficient stock with no risk of supply shortage due to discontinuation

1:1 mechanical & electrical compatibility, no cabinet modification or program adjustment needed

Superior temperature range and shock resistance compared to legacy BHT series

10. Safety Warnings
11. Cut off main power supply before wiring, disassembly or assembly to prevent short-circuit burnout of encoder
12. Shielded cables must be used near inverters and high-power motors to avoid counting interference
13. Waterproof M23 connectors are required for long-term outdoor operation to prevent moisture ingress into connector
14. Continuous operation over 6000rpm will permanently damage the optical grating disc
15. Do not disassemble encoder housing without authorization; disassembly invalidates sealing and warranty

 Classification of Typical Application Scenarios for Baumer BHT16.24A5000/403622

This encoder adopts the original heavy-duty baseplate from Hübner, featuring 5000PPR high resolution, blind hollow shaft, HTL differential push-pull output, IP65 protection and outstanding anti-vibration & anti-shock performance. It is designed for heavy-duty applications requiring high-precision synchronization, in environments with heavy dust, oil contamination and strong electromagnetic interference. Six major industry segments with applicable equipment and matching selection logic are listed below.

1. Port Cranes & Heavy-Duty Logistics (Core Traditional Application)

Applicable Equipment

1. Container quay cranes, gantry cranes, portal cranes: hoist winch motors, trolley travel & cargo trolley traction mechanisms
2. Port bulk ship loaders, stacker-reclaimer slewing/luffing drives
3. Heavy electric hoists, lifting platforms, main drives of freight elevators

Application Values

High 5000PPR pulses enable precise low-speed torque control to avoid cargo swing and load slipping

Full complementary differential A/B/Z signals resist EMI interference from inverters and high-power motors

Blind hollow shaft directly fitted onto motor shaft with integrated elastic coupling to absorb vibration from trolley travel and track bumps

Z zero-index pulse enables accurate homing at every start-stop with position limit safety protection

1. Metallurgy & Steel Industry (High Temperature, Heavy Dust & Severe Impact)

Applicable Equipment

1. Main drives of hot/cold rolling mills, roller table motors, uncoilers & recoilers
2. Ladle turrets, continuous casting withdrawal straighteners, fixed-length cutting shears
3. Overhead travelling cranes, ladle transfer trolleys, blast furnace charging slewing mechanisms

Application Values

Wide temperature range (-20~+85℃) adapts to radiant high temperature around rolling mills

IP65 protection blocks iron oxide dust and cooling water splashes

High resolution ensures stable closed-loop control of strip thickness and coil tension to prevent strip deviation and breakage

III. Paper, Printing & Textile Industry (High-Speed & High-Precision Synchronization)

Applicable Equipment

1. Main drives of high-speed paper machines, rewinders, slitters & coaters
2. Rotary printing presses, color register main spindles, die-cut positioning equipment
3. Water-jet/air-jet looms, warp knitting machines, chemical fiber drawing & winding equipment

Application Values

5000PPR quadrature pulses realize multi-axis electronic synchronization with minimal register error and fabric pattern deviation

Max 750kHz bandwidth adapts to high-speed spindles (mechanical limit 6000rpm)

Stable long-distance differential transmission without pulse loss in printing workshops with numerous inverters

1. Wind Power & New Energy (Wide Ambient Temperature & Continuous Vibration Outdoors)

Applicable Equipment

1. Yaw drive motors and pitch reducer feedback for wind turbines
2. Spindle speed measurement of small wind generators

Application Values

Wide temperature range copes with day-night temperature difference, rain and snow outdoors

10g vibration resistance ensures stable counting under long-term continuous vibration of turbine blades

Compact blind hollow shaft design fits narrow nacelle space

1. Machine Tools & Precision Automated Machining (High-Precision Position Closed-Loop Control)

Applicable Equipment

1. Spindle servo motor feedback for CNC lathes and machining centers
2. Synchronous control of rotary tables, dividing heads and gear hobbing machines
3. Feed axes of large gantry milling machines and plate cutting equipment

Application Values

5000PPR combined with 4x multiplication by driver achieves 20000 counts per revolution to improve indexing and contour machining accuracy

Z reference pulse realizes accurate machine homing upon power-on to establish mechanical coordinate system

M23 circular connector resists erosion from cutting fluid and metal dust

1. General Heavy Industry, Conveying & Packaging (Heavy Dust & Continuous Operation)

Applicable Equipment

1. Large belt conveyors, scraper conveyors, mine feeders
2. Beverage filling lines, food packaging machines, automated warehouse stackers
3. Extruders, main screw drives of injection molding machines, rubber calenders
4. Construction machinery: tower cranes, slewing mechanisms of concrete mixing plants

Application Values

24V wide-range power supply adapts to industrial control cabinets with mixed supply voltages on site

Push-pull output compatible with mainstream PLC, servo and inverter controllers

Hollow shaft eliminates external coupling, simplifies mechanical structure and reduces assembly cost

Non-Recommended Application Scenarios

1. Explosion-proof chemical plants and underground coal mines (no explosion-proof certification)
2. Long-term underwater immersion (only IP65, not for continuous water submersion)
3. Continuous operation over 6000rpm (mechanical bearing limit)
4. Sustained operation below -40℃ (standard minimum operating temperature -20℃)

Model Selection Matching Logic (Why This Model Suits Above Scenarios)

1. BHT heavy-duty blind hollow shaft structure: Handles impact loads from travelling, winching and slewing motions
2. 5000PPR high resolution: Meets high-precision demands for synchronization, tension control and indexing
3. 24A HTL differential push-pull output: Stable long-distance transmission in industrial high-interference environments
4. Suffix A full differential A/AB/BZ/Z-: Suppresses common-mode interference from inverters
5. IP65 protection + wide temperature range: Universal for harsh environments including steel plants, ports, outdoor sites and paper mills