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Incremental Rotary Pulse Encoders GEL 207, 208, 209, 219

Incremental Encoder GEL 207 with synchronous flange - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders Incremental Encoder Gel 207

Incremental Encoder GEL 208 with clamping flange - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders Incremental Encoder Gel 208

Incremental Encoder GEL 209 with bearing pedestal - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders Incremental Encoder Gel 209

Incremental Encoder GEL 209 with rectangular flange - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders Incremental Encoder Gel 219







General Information

Incremental Rotary Pulse Encoders convert rotations into electric signals.
The Lenord + Bauer encoders combine the
advantages of a magnetic measuring system and a
robust mechanic design. They have proven
successful all over the world in many different
applications and even under roughest industrial
conditions. Their high reliability and a long service
life go without saying.

Fields of Application

  • Heavy industry
  • Paper-making and packaging machines
  • Filling machines
  • Transporting and storing systems
  • Machines for processing steel, wood, stone, textiles
    and plastic, etc.

Main Characteristics

  • Up to 5,000 pulses per revolution (20,000 with external
    four-edge evaluation)
  • Reference signal
  • Cable or connector outlet, axial or radial
  • Various shaft diameters, 6 … 16 mm
  • High electromagnetic compatibility (EMC)
  • Our extremely flexible modular system makes it possible to
    offer our customers an express delivery service

Measuring Principle

The encoders work with differential sensors
depending on magnetic fields and a precision
toothed wheel as measure. The sensors scan the
tooth structure of the toothed wheel and emit a
sine or cosine voltage. The integrated evaluation
electronics in ASIC and SMD technology converts
the analogue sensor signals into incremental
output signals.

Advantages of the magnetic system

  • No adverse effect due to condensed water
  • Absolute operational reliability even in case of high humidity
    (dewing) and frequent change of ambient temperature
  • Extremely insensitive to dirt, oil and water
  • Extremely shock- and vibration-resistant because the measure
    is not made of glass nor plastic
  • Outstanding operational safety over a very long period of time
    as it does not suffer from ageing effects as optical systems do

Output Signals

Signal pattern V, VN

Two tracks with square-wave signals offset by 90°. On the third track N (option) a reference signal with defined length is output once per revolution.

Signal Pattern V, VN - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders
Signal pattern T, TN, U, UN, X, XN

Both tracks and the reference signal (option) are additionally output as inverse signals.

Signal pattern T, TN, U, UN, X, XN - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Output Level

The signal patterns V, VN, X and XN have HTL level, the signal patterns T, TN, U and UN have TTL level (for the output voltage see electrical data). All outputs have a push-pull power amplifier and are short-circuit-proof. The peak output current for recharging the cable capacity is 100 mA.

Key

UB = operating voltage
US = signal voltage
a = 360° electrical
b = 90° phase shift
F = edge distance (for an output frequency of 200 kHz the edge distance is F > 0.6 µ)
Signal pattern = shown for clockwise rotation (view on top of the encoder shaft)
Reference signals with other lengths upon request.

Technical data tables according to DIN 32878

General
Description Gel 207/208/209/219
measuring step from ... to 1) 36 ... 0.018°
pulse number per revolution 1) 10 ... 20 000 number of pulses
Accuracy
error limit 2) 0.14°
incremental deviation 2) 0.02°
repeatability 2) 0.009°
power consumption
RL = ∞, UB = 10…30 V DC
RL = ∞, UB = 5 V DC

≤ 1.3 W
≤ 1.0 W
max. output frequency 0 ... 200 kHz
output level for signal pattern T/TN
(logic level TTL)
high signal: ≥ UB - 1.00 V at I = 10 mA;     ≥ UB - 1.20 V at I = 30 mA
low signal: ≤ 0.75 V at I = 10 mA;     ≤ 1.00 V at I = 30 mA
output level for signal pattern U/UN
(logic level TTL)
high signal: ≥ 4.00 V at I = 10 mA;     ≥ 3.85 V at I = 30 mA
low signal: ≤ 0.75 V at I = 10 mA;     ≤ 1.00 V at I = 30 mA
output level for signal pattern
V/VN and X/XN (logic level HTL)
high signal: ≥ UB - 1.80 V at I = 10 mA;     ≥ UB - 2.20 V at I = 30 mA
low signal: ≤ 1.15 V at I = 10 mA;     ≤ 1.55 V at I = 30 mA
1) max. value with external edge evaluation of the signal pattern.
2) value for highest resolutions. Values for low resolutions on request.


Mechanical Data
Description GEL 207/208 GEL 209/219
shaft diameter GEL 207 = 6 mm
GEL 208 = 10 mm
6 mm, 8 mm,10 mm, 12 mm
(option)
16 mm
material dimensions of housing steel, electro-galvanized and black-chromized diameter 58 mm
flange type GEL 207 = synchro flange
GEL 208 = clamping flange
GEL 209 = bearing pedestal
GEL 219 = square flange
weight approx. 0.5 kg approx. 0.7 kg
max. operating 10,000 r.p.m 8,000 r.p.m.
moment of inertia of rotor 7 x 10-5 kgm2
max. acceleration extremely high as steel wheel and measuring wheel
are compressed having positive fit
operating torque 0.03 Nm (< 0.01 Nm with ball bearing cover (IP 50) optionally)
starting torque 0.05 Nm (0.01 Nm with ball bearing cover (IP 50) optionally)
max. shaft load
(point of application 15 mm before the contact
surface of the flange)
200 N axial
200 N radial
400 N axial
500 N radial
permissible shaft load We recommend connection by a radial flexible coupling.
bearing life (at half shaft load) 12,600 x 106 revolutions 6,600 x 106 revolutions
bearing life (at max. shaft load) 2,000 x 106 revolutions 840 x 106 revolutions
Environmental Conditions
operating temperature 0 ... + 70 °C (standard); - 20 ... +85 °C (option)
ambient temperature - 20 ... + 85 °C
storage temperature -40 ... +105 °C
protection class according to DIN EN 60529 IP 65
vibration protection (option)
according to DIN EN 60068-2-6
frequency range 10 ... 2,000 Hz; peak acceleration 100 m/s2;
frequency cycles 10
shock protection (option)
acccording to DIN EN 60068-2-27
peak acceleration 1000 m/s2; duration 11 ms
insulation strength according to VDE 0660 part 500 version 08/00 or DIN EN 60439-1 Ri > 1MΩ, at a testing voltage of 500 V AC
electromagnetic compatibility
electromagnetic emmissions EN 50081-1
electromagnetic immunity EN 61000-6-2
The encoders are in strict conformity with Directive EMC 89/336/EEC
of the European Union and are therefore certified by the CE mark.


Maximum cable lengths between encoder and secondary electronics. The stated data are standard values referring to cable type LiYCY 6 (10) x 0.25 mm2 .

UB= 20 V (VN)
f [kHz]
Lmax [m]
≤ 20 50 100 200
200 80 40 20

UB = 5 V (TN, UN)
f [kHz]
Lmax [m]
≤ 100 200
200 145

UB = 20 V (XN)
f [kHz] Lmax [m] ≤ 20 50 100 200 100 40 20 10

Pin layouts: plug, cable Dimensioned drawings: counter plug

Pin layout: plug
(The counter plug is included in the scope of supply.)

Pin layout 6-hole plug - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders
Pin layout 12-hole plug - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders



Pin layout: cable

Pin layout 6-core cable - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders
Pin layout 10-core cable - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Key

UB = operating voltage
US = signal voltage
Signal patterns shown for clockwise rotation (view on top of the encoder shaft)

Dimensioned drawing: counter plugs

(GG 66 or GG 126 are included in the scope of supply, if you wish the optional GW 66 type please state in your order.)


Pin layout 10-core cable - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders


Dimensioned drawing GEL 207 (synchro flange) Dimension Drawing Incremental Encoder Gel 207 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders
Dimensioned drawing GEL 208 (clamp flange) Dimension Drawing Incremental Encoder Gel 208 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders


Dimensioned drawing GEL 209 (bearing pedestal) Dimension Drawing Incremental Encoder Gel 209 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders


Dimensioned drawing GEL 219 (rectangular flange)

Dimension Drawing Incremental Encoder Gel 219 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Protection of the electronics (option), Possible pulse numbers

Protection of the electronics - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders


Protection against humidity

The encoders’ electronic unit is coated with a highly effective protection against humidity, salt-water atmosphere and corrosive vapours to ensure their proper functioning during years even under roughest conditions.

Condensed-water outlet

Water may accumulate in the encoder if it is exposed to multiple dewing. The water can drain off through the condensed-water outlet. When mounting the encoder the outlet must show downward. The protection class drops to IP 64.

Protection against vibration

The additional fixing of mechanical parts with special plastic prevents the electronics and the connections inside the encoder from vibrating. Thus the proper and continuous operation of the encoder - even if exposed to extreme vibration and shock – is guaranteed.

Possible pulse numbers GEL 207/208/209/219

Possible pulse numbers for GEL 207/208/209/219 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

*A quadruple resolution is achieved by external four-edge evaluation. The pulse numbers printed in bold-face are standard pulse numbers.

Order details GEL 207/208/209/219

Type Code
Typecode for GEL 207/208/209/219 - Lenord & Bauer Rail Speed Sensors and Rotary Pulse Encoders

Order details
Standard cable length: 1metre. Please state in your order, if you wish other cable lengths. GG 66 or GG 126 are included in the scope of supply; if you wish GG 66 (option), please state in your order.

Order example
208 V N 01000 A 0 3 3 or 207 T N 01024 H 4 0 1 with 3-m cable length.

Lenord & Bauer: Rail Speed Sensors & Rotary Pulse Encoder

Other products relating to GEL 207, 208, 209, 219 are: GEL 260, GEL 293, GEL 27xx