EUCHNER handheld operating unit and electronic handwheel

Brand and Product Overview

EUCHNER is a leading global manufacturer of industrial safety components. This manual is a sample of handheld operating units (handheld units) and electronic handwheels, aimed at debugging, maintenance, and manual control scenarios of machine tools and automation equipment, emphasizing safety, ergonomics, and modularity.

Handheld operating unit (3 series)

1. Product division

Series positioning size/weight characteristics

HBA is small and lightweight, weighing about 0.8kg. It is the most compact and can be operated with one hand

HBM Medium Expansion Approximately 1.1kg More buttons LED、 Larger space

HBL large premium weighing approximately 2.1~2.2kg, sturdy, can be equipped with LCD, advanced interface

2. Unified safety standards

Emergency stop button: dual channel 2NC, compliant with EN ISO 13850

Enable switch: 3-stage (OFF – ON – OFF), press the panic to stop the machine

Protection level: IP65 (front)

Working temperature: 0~+50 ℃ (HBL is 0~+55 ℃)

3. Function configuration (optional)

Rotary switch (axis selection, magnification): Gray code output

Film button/illuminated button: up to 14 keys

Electronic handwheel: 100 pulses per revolution, RS422 output

Display: LCD Text Screen (HBLS/HBLS)

Communication: RS422/3964R protocol

Power supply: 24V DC ± 20%

Electronic handwheel (5 models)

1. Classification

Magnetic damping (no wear): HKB, HKC, HKD

Mechanical damping: HWA, HWB

2. Core parameters

Parameter values

Pulse/rev 25/100 PPR

Damping points 100 detants

Output signal RS422/push-pull 5V/24V

Power supply 5V ± 5% or 10-30V DC

IP65 protection

3. Suitable for installation

HKB: Thin panel, handheld unit HBA/HBM

HKC: Thin Operating Panel

HKD: HBL handheld unit, heavy-duty machine tool

HWA/HWB: Embedded panel, center/three-point fixed

Modular Suite (Core Advantage)

Provide HBA Kit/HBM Kit/HBL Kit shell components, which can be freely selected:

Upper shell/lower shell (gray/black)

Emergency stop, enable, knob, button

Handwheel, display, interface

Aluminum panels, self-adhesive labels

Cable gland, shielded cable

Meet the needs of prototype and small batch customization.

Accessory system

Connector: 12/23/28/35 cores, metal flange+plug

Cable: Spiral wire (stretch 3.5m/5m), straight cable (10m), multi-core shielding

Fixed parts: HBA/HBM/HBL special bracket

Button/switch: monochrome/with light, selection switch, key switch

Sealing and decoration: dial, front panel, sealing ring

Standards and Certification

Safety: EN ISO 13850 (emergency stop)

EMC：EN 61000-6-2 / -6-4

Certification: UL, CE, compliant with the Machinery Directive

Wiring: DC-13/AC-15 rated value

Key questions and answers

Question 1: What are the safety advantages of the three-stage enable switch of EUCHNER handheld unit compared to the ordinary two-stage switch?

Answer: The three-stage enable switch has an OFF → ON → OFF structure. When the operator urgently grips it, it will directly trigger the shutdown to avoid the machine continuing to operate due to spasms or tension pressing the switch; The two-stage system only stops when released, which poses a risk in the panic state. Therefore, the three-stage design is more in line with machine tool safety standards.

Question 2: What are the core differences and applicable scenarios of HBA, HBM, and HBL handheld units?

answer:

HBA: The smallest and lightest, suitable for simple debugging and one handed operation.

HBM: Medium size, with more buttons and LEDs, suitable for manual control of commonly used machine tools.

HBL: The largest and strongest, supporting LCD display and advanced functions, suitable for complex CNC systems and robot teaching.

Question 3: What is the difference between magnetic damping and mechanical damping of EUCHNER electronic handwheel? What scenarios are suitable for each?

answer:

Magnetic damping: contactless, wear-resistant, long lifespan, low noise, suitable for handheld units and long-term frequent operation (HKB/HKC/HKD).

Mechanical damping: With a simple structure, lightweight, and low cost, it is suitable for embedded operation panels and lightweight use (HWA/HWB).