Magnetic Incremental Rotary Encoder Gel 2592
- Extremly robust rotary encoder with stainless steel housing for measuring rotational movements of machines and vehicles
- Contactless magnetic scanning of an integrated target wheel
- Rotary encoder with solid shaft (shaft diameter 16 mm) or with integrated hollow shaft coupling (diameter 20 mm)
- Plug or cable outlet with customer-specific modifications available
- Up to 5 sensors in one housing, three different signal patterns available
- High electromagnetic compatibility and interference immunity
- High temperature range -40 °C to +120 °C
- Protection class IP 67
- Voltage or current output
- Vibration resistance up to 20 g
- Solution individually tailored to the specific application, as up to 5 sensors can be integrated in one housing
- Maintenance-free, durable operation in the harshest ambient conditions due to selected bearings and a magnetic measuring system
- Highly resistant to condensation, spray, condensed water and aggressive chemical substances
- Rail vehicle industry
- Traction monitoring
- Electronic anti-skid protection
- Motor rotational speed
- Anti-slip protection - Machinery and motors
- Heavy industry
- Metallurgy
- Composting plants
- Sewage treatment plants
Description
The precision encoders GEL 295x are designed as an modular, application-specific encoder system and consist of a housing component and modular sensor systems. All rotary encoders GEL 295x are manufactured to drawing or application description. The technical specifications may vary from the technical data given. The modified specifications and the pin layout are to be found on the customerspecific dimensional drawing.
Construction and design
The series GEL 295x rotary encoders are extremely robust
sensors for the measurement of rotary movements or positions
on machines and vehicles. Due to their high resistance
to condensation, spray and condensed water, as well as the
very wide temperature range from -40 ° to +120 °, they
are particularly suitable for use in rail vehicles or in heavy
industry.
The housing component is available with solid shaft or hollow
shaft including an integrated flexible precision hollow
shaft coupling. The resilent encoder housing with a standard
flange size of 115 mm is made of stainless steel. The electrical
connection of the sensor system is variable, using plug
connectors or cable outlets.
A very large number of customer-specific requirements can
be met using the modular sensor system.
The GEL 295x offers particular advantages especially in relation
to redundancy and safeguarding against failures. The
rotary encoder comprises up to five separate sensors.
A Y number is assigned to customer-specific designs, this
letter is appended to the product identifier (GEL 295xYxxx).
Notes on mounting
The flexible high-precision hollow shaft coupling compensates eccentricities, axial impacts and vibrations. The precision encoders are designed to be mounted on an expansion shaft with a diameter of 20 g7 mm. The expansion shaft must contain an inside thread, e.g. M12, to accept a hexagon socket set screw, and must not project more than 15 mm into the hollow shaft coupling. The set screw is screwed in, with its hexagon socket first, into the direction of the expansion shaft. A centring flange ensures the exact positioning of the high-resolution encoder in the mounting device.g
The rotary encoder with solid shaft must be connected with the drive shaft via a flexible coupling. The flexible clamp coupling type KK 14 is recommended. The degree of axial offset between the shaft ends directly influences the degree of the phase displacement. In particular, this must be taken into account for systems with high pulse numbers.
Sensing principle
The rotary encoders work with differential, magnetic-fielddependent
sensors and a precision target wheel. The sensors
scan without contact the tooth structure of the target
wheel and output a sine and cosine voltage. The integrated
evaluation electronics converts the analog sensor signals
into incremental output signals.
By interpolation of the integrated evaluation electronics, the
sinusoidal signals can be converted into rectangular output
signals.
In the basic version, signal pattern K, V and X are available
(see table). On request we check the feasibility of other signal
patterns.
Possible pulse numbers
The possible pulse numbers depend on the signal output.
The version with sine/cosine differential signal provides 256
pulses per revolution, signal pattern is K (smaller pulse numbers
on request).
For signal pattern V and X, 150 or 256 pulses are supplied
and interpolated. Hence the following pulses are available:
Pulse numbers for signal pattern V and X
Input pulses | Interpolation factor | ||||||
1 | 2 | 3 | 4 | 5 | 6 | 8 | |
150 | 150 | 300 | 450 | 600 | 750 | 900 | 1200 |
256 | 256 | 512 | 768 | 1024 | 1280 | 1536 | 2048 |
With signal pattern K 1 Vpp differential signals are output. The signal pattern V and X have HTL level (output voltage see "Technical data").
Available signal pattern
K Two sine-wave signals, phase- shifted by 90°, with inverse signals
V Two square-wave signals, phase- shifted by 90°
X Two square-wave signals, phase- shifted by 90°, with inverse signals
Technical data
Signal Pattern | K | V | X |
---|---|---|---|
General data | |||
Resolution | 256 sin/cos Periods (1) |
150 to 2048(2) pulses per revolution | |
Precision short-wave (transformer and tooth forming error) | 360° × 0.006 / pulse number | ||
Precision long-wave (radial run-out) | ± 0.015° | ||
Electrical data | |||
Supply voltage VS | 5 V DC ± 5% | 10 to 30 V DC | |
Current consumption without load | ≤1.0 W | ||
Output signals | Difference signal | Square wave siganl (2) | |
Output signal level | 1 Vpp | High: VS - 1 V, Low: < 1.0 V (3) | |
Maximum permissible cable length | 100 m (observe voltage drop on supply line) | ||
Mechanical data | |||
Housing material | stainless steel, X12CrMoS17-1,4104 | ||
Weight | approx. 3 kg | ||
Admissible coupling offset axial lateral | ± 1.3 mm ± 0.2 mm | ||
Speed range | 0 to 6000 min -1 | ||
Bearing life cycle under radial load (with solid shaft) | 100 N → 21.0.10⁹ revolutions 200 N → 15.0.10⁹ revolutions 250 N → 7.5.10⁹ revolutions |
||
Bearing life cycle under axial load (with integrated hollow shaft coupling) | 50 N → 130.4.10⁹ revolutions 75 N → 43.2.10⁹ revolutions 150 N → 7.2.10⁹ revolutions |
||
Ambiant data | |||
Working temperature range (DIN 32876) | -40 °C to +85 °C | ||
Operating and storage temperature range (DIN 32876) | -40 °C to +120 °C | ||
Protection class (EN 60529) | IP 67 (hollow shaft side: corresponds to protection class of the engine or gear unit) | ||
Vibration resistance (EN 60068-2-6) | 200 m/s² | ||
Shock resistance (EN 60068-2-27) | 2000 m/s² | ||
Electromagnetic compatibility (EMC) | Industrial application: EN 61000-6-1 to 4 Rail vehicles: EN 50121-3-2 | ||
Insulation strength (according to EN 60439-1) | 500 V AC |
Connection assignment
Connection assignment- mating connector
Pin layout | Pin | Signal pattern K | Signal pattern V, X | Function |
Socket (= solder side of mating connector) |
1 | /Track 2 ¹ | /Track 2 ¹ | Track 2, inverse |
2 | ¯ | ¯ | not connected | |
3 | ¯ | ¯ | not connected | |
4 | ¯ | ¯ | not connected | |
5 | Track 1 | Track 1 | Track 1 | |
6 | /Track 1 | /Track 1 | Track 1 inverse | |
7 | ¯ | ¯ | not connected | |
8 | Track 2 | Track 2 | Track 2 | |
9 | ¯ | ¯ | not connected | |
10 | 0V (GND) | 0V (GND) | Ground | |
11 | ¯ | ¯ | not connected | |
12 | VS 5 V DC | VS 10 to 30 V | Supply voltage |
Connection assignment - cable outlet
Core colour | Signal pattern K | Signal pattern V, X | Function |
rot | VS = 5 V DC | VS = 10 to 30 V | Supply voltage |
blau | 0V (GND) | 0V (GND) | Ground |
gelb | UA+ | Track 1 | Track 1 |
b | schwarzUA- | /Track 1 | Track 1 inverse |
weiß | UB+ | Track 2 | Track-2 |
braun | UB- | /Track 2¹ | Track 2,inverse |
Precision rotary encoder with hollow shaft
Dimensional drawing - housing component with one sensor system
Assembly drawing and mating dimensions
Precision rotary encoder with solid shaft
Dimensional drawing - housing component with one sensor system
Dimensional drawing - Clamp coupling KK 14
Type code and accessories
Type code
Accessories
Description | Item number |
Clamp coupling KK 14, inner diameter: 6 to 16 mm (specify shaft diameter) | KK 14 |
Mating connector, M23, 12-pole, straight, IP 65 | GG 126 |
Mating connector, M23, 12-pole, angled, IP 65 | GW 126 |