MiniCODER bearing-free rotary encoder – GEL 2444

Speed and position sensor with sin/cos or TTL interface

Contactless magnetic scanning for maximum service life
Compact design fits into the tightest installation spaces and withstands the most challenging ambient conditions
High-resolution sin/cos sensor with safety functions
Fast, error-free parameterization and efficient commissioning with the GEL 211 mobile service unit
Integrated operating hours meter detects speed and temperature ranges during runtime

Inquiry & Support

Technical information

Properties

Contactless measurement for wear-free operation
Low temperature drift and high signal quality
Completely screened metal housing
Integrated operating hours meter
Contactless scanning of target wheels
Compact, high-resolution design
Safety integrated (signal pattern sin/cos)
Frequency range up to 200 kHz (sin/cos) or 500 kHz (TTL/RS422)
Degree of protection IP68
Operating temperature -40 °C to 120 °C

Advantages

Maintenance and wear-free
High measurement stability and low error tolerances
High interference immunity
Reliable operation even in case of extreme temperature fluctuations
Simple integration into confined installation spaces
Detection of very high speeds
High shock and vibration resistance
Resistant to environmental factors
Easy commissioning and servicing thanks to smart programming functions
Robust alternative to sensitive pole wheel sensors, pole band systems, and costly optical systems

Downloads

Product	Document	Languages
GEL 2444	Technical information	DE EN CN FR
	Operating instructions	DE/EN
	Product information	DE/EN
	Shielding concept GEL 2444K	DE/EN

Fields of application

Machine tools
- HSC spindles (High Speed Cutting)
- Screw spindles in vacuum pumps
- Turning, grinding, and milling machines
Test benches and motors (hybrid drives, torque motors)

The appropriate service device

GEL 211CS Service and diagnostic unit for MiniCODER sensors

Target wheels

Target wheels Measuring scales for the MiniCODER system

Dimensional drawings

Dimensional drawing cable outlet MiniCODER (G) — Axial

Dimensional drawing cable outlet MiniCODER (L) — Tangential, cable outlet left

Dimensional drawing cable outlet MiniCODER (R) — Radial

Dimensional drawing cable outlet MiniCODER (T) — Tangential, cable outlet right

All dimensions in mm [inch]

Technical data

	Module 0.3	Module 0.5
Target wheel
Material	Ferromagnetic steel
Target wheel width	10 mm [0.39 inch]
Reference mark	Groove (M), lug (N), tooth(Z)
Module	0.3	0.5
Geometric data
Nominal air gap	0.15 mm ± 0.02 mm [5.91 mil ± 0.79 mil]	0.20 mm ± 0.03 mm [7.87 mil ± 1.18 mil]
Electrical data
Supply voltage U_B (polarity reversal protected, overvoltage protected)	5 V DC ± 5%
Output signal GEL 2444D GEL 2444K GEL 2444T	Two square-wave signals phase-shifted by 90° and their inverse signals, short-circuit-proof; Option: Reference signal Two sinusoidal signals phase-shifted by 90° and their inverse signals, short-circuit-proof; Option: Reference signal Two square-wave signals phase-shifted by 90° and their inverse signals, short-circuit-proof; Option: Reference signal
Output signal level GEL 2444D GEL 2444K GEL 2444T	TTL/RS422 1 V_pp Differential signal TTL/RS422
Output frequency GEL 2444D GEL 2444K GEL 2444T	0 to 500 kHz 0 to 200 kHz 0 to 500 kHz
Power consumption without load	≤ 0.3 W
Mechanical data
Housing material	Zinc die casting
Weight	30 g [1.06 oz]
Cable data (cable design –)
Cable structure (number of cores× core cross-section)	9 × 0.15 mm² [25 AWG]
Cable diameter	5 mm [0.20 in]
Minimum bending radius	25 mm [0.98 in]
Maximum permissible cable length	100 m [328.08 ft]
Ambient data
Working temperature range	-30 °C to +85 °C [-22 °F to 185 °F]
Operating and storage temperature range	-40 °C to +120 °C [-40 °F to 248 °F]
Degree of protection at the cable outlet of the MiniCODER housing	IP 68
Dielectric strength	500 V AC / 1 min
Electromagnetic compatibility	Electromagnetic emission DIN EN 61000-6- 4; DIN EN 61000- 6-3 Electromagnetic immunity DIN EN 61000-6- 2; DIN EN 61000- 6-1
Vibration resistance	200 m/s² [656.17 ft/s²], according to EN 60068-2-6
Shock resistance	2000 m/s² [2187.23 yd/s²], according to EN 60068-2-27
MTTF	5,000,000 h at 55 °C [131 °F]
FIT	204 x 10^-9 h^-1at 55 °C [131 °F]
Approvals
European Economic Area	Conformity in accordance with EMC Directive 2014/30/EU