WCA September 2015

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58 Wire & Cable ASIA – September/October 2015
Technologynews
HELUKABEL has launched its new
Profinet plug connector, the Helukat
RJ45 Cat5 IP20, which has built-in fast
connection technology.
The fieldbus-compatible plug comes in
a linear and angled design. It is
well-suited for industrial use in tight
installation spaces.
Helukat has coloured contact elements
which prevent the installer from
committing connection errors. The
clear labelling matches the wire
sequence of the Profinet standard,
whose four single wires can be quickly
connected.
The metal housing enables it to be
used in industrial applications.
Transmission rates are up to 100 MHz
Cat 5.
The shielded plug connector comes in
a linear 180° version and an angled 90°
version. Designed to protection grade
IP 20, it can withstand operating
temperatures of -4ºF to 158ºF (-20ºC
to +70ºC).
The Helukat RJ45 Cat5 IP20 is
compatible with AWG 22 and AWG 24
cables, and designed to be used with
both bunched and solid wire conductor
types.
The Profinet plug connector can be
easily and quickly installed without the
need for tools.
The single wires must be arranged in
accordance with the colour coding of
the RJ45 plug and, in the folded-up
guide element, inserted into the
contact points up to the stop.
To achieve a full connection, the user
presses the guide element downward
to the stop, closes the housing cover,
and fixes the front screw cap with a
quarter rotation.
The development of a 145°-angled
version as well as an eight-pin variant
is currently in the planning process,
and will expand the product range
once successfully completed.
Helukabel GmbH – Germany
Website:
Connector with built-in fast connection technology
❍ The new Profinet plug connector from Helukabel
Magnetic particle clutches and brakes
are suitable for tension and torque
control. Clutches are used for rewind
tensioning, and torque limiting. Brakes
are used for unwind tensioning.
Performance, accuracy and life are
greater than friction clutches and
brakes, since magnetic particle units
have no friction plates to wear or give off
dust.
Slip torque is smooth and infinitely
adjustable. Torque is varied from near
zero to maximum by varying input
current.
Units from 1oz inches to 300lb-feet, with
heat dissipation up to 1,900 watts
continuous duty are available from stock.
The DC constant-current power supplies power the
clutches, with output current controlled manually with a
potentiometer, or by a 0-10 volt signal voltage from a
computer or PLC.
The Placid Industries follower
potentiometer or ultrasonic sensor
connects directly to the power supply to
make a constant tension unwind system.
As the roll diameter decreases, the
current energising the brake is
decreased to keep tension constant.
Placid’s hysteresis brake produces
torque without physical contact,
ensuring torque is very precise and
repeatable, and providing a very long life.
Applications include torque and tension
control for web handling (unwinding),
and load simulation for testing motors
and drives.
Torque can be varied from three per cent
to 100 per cent by varying input current. This also provides
a very wide RPM range while the cog-buster automatically
decogs (eliminates torque ripple) with one revolution.
Placid Industries Inc – USA
Website:
Clutches and brakes suitable for tension and torque control
❍ Tension and torque control from Placid
Industries