Incremental,
digital or analog interface, very small design
Magnetic motor feedback systems are proving themselves in numerous
applications in linear drive technology, handling systems, circuit board
assembly, robotics and in a wide range of automation solutions in the context
of Industry 4.0. In all of these areas, the speed and/or position of a drive
must be communicated to a main controller in real time. The ultra compact
LEC100 and LEC200 sensor duo has been developed by SIKO for these requirements.
A sensor system with high resolution and repetitive accuracy is extremely
important for communicating position and speed data. The aim is to ensure that
the motors run as smoothly as possible. Moreover, the space for sensors is
extremely limited in many applications and they therefore have to be designed
to be as small as possible. The trend towards miniaturization in the sensor
sector is particularly noticeable at the moment.
Ultra compact
The sensor head of the LEC range is very small and compact at 40 x 10 x 10 mm.
The height of the sensors has been reduced by more than half in comparison to
previous models. The LEC sensor is now about as flat as a smartphone, but all
of the electronics are accommodated in the sensor housing. The sensors also
impress with their thin, cable track-compatible high-flex cable with an
external diameter of max. 4.3 mm.
Despite the small design, two LEDs are integrated for visual function and
status monitoring and a reference option.
Analog or digital
The LEC sensors come with an analog interface (1Vss) or a digital interface
(LD), as required. The user can also choose between accuracy classes +/- 8 µm
(LEC100) and +/- 15 µm (LEC200). The repetitive accuracy is max. 1 µm (LEC100)
or 2 µm (LEC200), the max. resolution 0.1 µm (LEC100) or 0.2 µm (LEC200).
Path information and reference point via magnetic band
The LEC100 sensors for reading out 1 mm systems are combined with the MB100/1
magnetic tape, while the LEC200 sensors (2 mm systems) work with the MB200/1
magnetic tape. Both sensors are equipped internally with an additional sensor
chip for reading a reference point on the tape side. Precise and reliable
location of home position is therefore always possible. With the LEC200
variant, the reference point can be set on the scale by the customer. (Flex
ref. process).
Use in extreme conditions
With a protection rating of IP60 and a wide operating temperature range of -40
… 85°C (-40 … 185°F), the LEC100 and LEC200 sensors are extremely robust and
resilient.
- Repeat accuracy max. ±1 μm
- Max. resolution 0.1 µm (LD output circuit)
- Works with MB100/1 magnetic tape
- Output circuit sin/cos or LD
- Function and status display LEDs