A
CTOM
, the largest electrical engineering group in SouthernAfrica, and
Alstom
Grid
, world-leading provider of engineered solutions and products for smart
and conventional power grids, signed a three-year transmission technologies
cooperation agreement in Johannesburg on April 23. The agreement, effective
until April 2015, was signed by Jack Rowan, chairman ofTransmission and Distri-
bution at ACTOM, and Eric Boulot, Alstom Grid’s Commercial vice-president for
Southern Europe and Africa. “The agreement represents the continuation of a
longstanding mutually beneficial cooperative association between the two groups.
ACTOM’s focus has always been on maximising local content and we manufacture
a number of products under licence to our international partners wherever this
proves practicable, in addition to developing and manufacturing products of our
own,” said Rowan. Boulot stated: “Alstom and ACTOM are partners in a number
of activities such as signalling, boiler services and Metro coaches in the region
and this agreement will reinforce the partnership and cooperation between the
two groups.The renewal of the agreement has been a perfect time to review our
operations together and to energise our approach to the market".
Enquiries: Kobie Hyman.Tel. 011 518 8217 or email
.
D
RIVE-CLiQ is Siemens’ new communication
protocol for motor feedback in a SINAMICS
drive system. It is an Ethernet based interface
for connection of different kinds of components,
like motors, frequency converters and encoders.
Leine & Linde is the first producer to imple-
ment the DRIVE-CLiQ interface on a heavy duty
encoder platform. This will enable DRIVE-CLiQ
communication also with encoders that are
designed for long life operation in harsh envi-
ronments where they are exposed to powerful
vibrations, shocks and mechanical loads. Avail-
able from
ATI Systems
, DRIVE-CLiQ encoder is
designed for transfer of both position and speed
data over the same protocol.The scanning gen-
erates absolute position data, which means that
each step of the turn is represented by a unique
code - both singleturn for the exact position of
the shaft, and multiturn for the number of full
revolutions. The protocol is also intended for
transmission of real-time speed data.Thanks to
a high encoder resolution (19 bit singleturn) and
very fast cycle time (31,25 μs) the digital speed
value given by the encoder can be used for ac-
curate speed control in a closed loop. One of the
key features of DRIVE-CLiQ is that it simplifies
the commissioning and configuration when
setting up components in a system. Each unit
has an electronic label with basic data like part
number and technical specification. This way
the encoder is recognised by the system when
installed and automatically set up according to
its exact configuration.
Enquiries: ATI Systems:Tel: 011 383 8300 or email
Signing of transmission technologies cooperation agreement
Communication protocol
- heavy duty
ROUND UP
Plant maintenance, test and measurement
Back L-R: Mark Wilson and Andries Tshabalala (ACTOM).
Front: Eric Boulot (ALSTOM) and Jack Rowan (ACTOM).
