Lika SME1 User Manual

User manual
SME1, SME2, SME5
Description
This manual describes products of the SME1, SME2,
SME5 series. The purpose of these sensors is to
measure linear or angular displacements on
industrial machines and automation systems. The
measurement system includes a magnetic tape and
a magnetic sensor. The tape has alternating
magnetic north/south poles are magnetized at a
certain distance called the pole pitch. As the sensor
is moved along the magnetic tape (or magnetic
ring), it detects the displacement and produces an
output signal equivalent to that of an incremental
encoder or a linear scale. The flexibility of the tape
allows it to be used for both linear and angular
applications.
The sensor has to be matched with the appropriated
magnetic tape (see chap. 2.1).
Chapters
1 Safety summary
2 Identification
3 Mounting instructions
4 Electrical connections
5 Output signals
6 Dimensional drawing
7 Maintenance
8 Troubleshooting
SME1 SME2 SME5
1 Safety summary
• observe the professional safety and accident prevention
regulations applicable to your country during device
installation and operation;
• installation has to be carried out by qualified personnel
only, without power supply and stationary mechanics
parts;
• the device must be used only for the purpose appropriate
to its design;
• high current, voltage and rotating parts can cause serious
or fatal injury.
• switch OFF the voltage before connecting the device;
• connect
connections";
• according to the 89/336/CEE norm on
electromagnetic
precautions must be taken:
before handling and installing, discharge electrical charge
from your body and tools which may come in touch with
the device;
power supply must be stable without noise, install EMC
filters on device power supply if needed;
always use shielded and twisted cables if possible;
avoid cables runs longer than necessary;
avoid running the signal cable near high voltage power
cables;
mount the device as far as possible from any capacitive or
inductive noise source, shield the device from noise source
if needed;
minimize noise by connecting shield and device housing to
ground (GND). Make sure that ground (GND) is not
affected by noise.
• install according to the section "Mounting instructions"
with stationary mechanics parts;
• do not disassemble the device;
• do not tool the device;
• do not subject the device to knocks or shocks;
• protect the system against solvents and substances
damaging it;
• respect the environmental characteristics of the product;
• be sure that the system is mounted where hard or sharp
objects (e.g. metal chips) do not come into contact with
the magnetic tape and the bottom of the sensor head. If
these conditions cannot be avoided provide a wiper or
pressurized air.
Safety
Electrical safety
according to instructions
compatibility, following
Mechanical safety
of "Electrical