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Incremental Rotary Pulse Encoders GEL 207, 208, 209, 219
Incremental Encoder Gel 207
Incremental Encoder Gel 208
Incremental Encoder Gel 209
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, VNTwo 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 T, TN, U, UN, X, XN
Both tracks and the reference signal (option) are additionally output as inverse signals.
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.
KeyUB = 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 |
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: cable
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.)
Dimensioned drawing GEL 209 (bearing pedestal)
Dimensioned drawing GEL 219 (rectangular flange)
Protection of the electronics (option), Possible pulse numbers
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 outletWater 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 vibrationThe 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
*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
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