Efficient Plant Nov./Dec. 2021 - 26

feature | solution focus
needed additional production to accommodate
the increased demand for large
truck tires.
INTEGRATION CHALLENGE
Integrating conveyor systems is not
without challenges. A common issue
when integrating such a system into
existing infrastructure is that it oſt en
results in less than optimum routing
where the shortest distance between
points cannot be followed. Oſt en, extra
conveyor length is incurred when routing
lines over and under pre-existing machinery
and equipment. Th e extra conveyor
length may require larger driving units
such as motors and gearboxes.
In these cases, it's common to add
Overhead conveying systems, such as this one,
often require complex drive systems that work
best if managed by motor-drive units.
duplicate driving units to the system when
a single unit would be too small or would
subject the conveyor hardware to excessive
stress. However, controlling multiple
drive units adds some complexity. While
a single control operating multiple drive
motors might work, it may not be optimal
because it may place stress on conveyor
sections where inclines, declines, turns,
and bends are encountered. Also, some
motors may be overloaded by the greater
load generated by conveyor contours.
Controlling the multiple motors with
multiple drives may be required.
The Yaskawa U1000 Matrix motor drive
off ers an advanced design that provides
direct AC-to-AC input to output power
conversion and 98% effi ciency. The drive
is easy to install and set up. Learn more
about the Yaskawa U1000 drive in a new
podcast conversation with Christopher
Jaszczolt, Product Manager, Matrix Drive,
at Yaskawa America Inc., Waukegan, IL.
effi cientplantmag.com/2111yaskawa.
A SOLUTION
Th e tire company recently installed a
couple of new overhead conveyor lines to
move product throughout their facility as
part of a plant expansion. Th e length and
layout of the overhead chain conveyor
systems necessitated that there be multiple
drive units located strategically throughout
the span of the conveyor system to
share the overall load and reduce stress on
the chain and associated components.
Th e installation used Yaskawa America
Inc., Waukegan, IL, (yaskawa.com),
26 | EFFICIENTPLANTMAG.COM
A1000 drives to control the 5- and 10-hp
motors that were gearbox coupled into
the overhead chain systems. Th e control
integrator used standard Yaskawa drives
with a self-contained load-sharing confi guration
to ensure each motor performs its
share of the work.
Th e drives were confi gured in a master-slave
arrangement with the slave drives
using PID to match the load being produced
in the master. In this case, the load
was split between both drives, with each
drive/motor producing 50% of the overall
load. However, the drives can be easily
adjusted to shiſt the load ratio if required
by the system.
Th e master drives receive their reference
and start/stop commands through
the plant network. Th e slave drives regulate
their output frequency appropriately
in response to the speed and load signals
from the master. No encoders or PLC
programming were required to perform
the load sharing.
Th e drives transfer the necessary signals
through the drive's standard terminal I/O.
Had the drives been located a far distance
from one another, the PLC could be used
to transfer the data from master to slave
through the network. Slave-drive response
is set up using the PID gains, integral
settings, and limits.
Th e startup was performed over a
holiday weekend with assistance from
Yaskawa. Both systems were commissioned
the same morning using application
note AN.AFD.39 as a base point and
required almost no adjustment beyond
the initial settings generated by Yaskawa's
application engineering team. Th e result
was the much-needed increase in tire
production. EP
For more information about motor drives
for a variety of applications, visit
yaskawa.com.
NOV/DEC 2021
http://www.cientplantmag.com/2111yaskawa http://www.yaskawa.com http://www.yaskawa.com http://www.EFFICIENTPLANTMAG.COM

Efficient Plant Nov./Dec. 2021

Table of Contents for the Digital Edition of Efficient Plant Nov./Dec. 2021

Efficient Plant Nov./Dec. 2021 - Cover1
Efficient Plant Nov./Dec. 2021 - Cover2
Efficient Plant Nov./Dec. 2021 - 1
Efficient Plant Nov./Dec. 2021 - 2
Efficient Plant Nov./Dec. 2021 - 3
Efficient Plant Nov./Dec. 2021 - 4
Efficient Plant Nov./Dec. 2021 - 5
Efficient Plant Nov./Dec. 2021 - 6
Efficient Plant Nov./Dec. 2021 - 7
Efficient Plant Nov./Dec. 2021 - 8
Efficient Plant Nov./Dec. 2021 - 9
Efficient Plant Nov./Dec. 2021 - 10
Efficient Plant Nov./Dec. 2021 - 11
Efficient Plant Nov./Dec. 2021 - 12
Efficient Plant Nov./Dec. 2021 - 13
Efficient Plant Nov./Dec. 2021 - 14
Efficient Plant Nov./Dec. 2021 - 15
Efficient Plant Nov./Dec. 2021 - 16
Efficient Plant Nov./Dec. 2021 - 17
Efficient Plant Nov./Dec. 2021 - 18
Efficient Plant Nov./Dec. 2021 - 19
Efficient Plant Nov./Dec. 2021 - 20
Efficient Plant Nov./Dec. 2021 - 21
Efficient Plant Nov./Dec. 2021 - 22
Efficient Plant Nov./Dec. 2021 - 23
Efficient Plant Nov./Dec. 2021 - 24
Efficient Plant Nov./Dec. 2021 - 25
Efficient Plant Nov./Dec. 2021 - 26
Efficient Plant Nov./Dec. 2021 - 27
Efficient Plant Nov./Dec. 2021 - 28
Efficient Plant Nov./Dec. 2021 - 29
Efficient Plant Nov./Dec. 2021 - 30
Efficient Plant Nov./Dec. 2021 - 31
Efficient Plant Nov./Dec. 2021 - 32
Efficient Plant Nov./Dec. 2021 - Cover3
Efficient Plant Nov./Dec. 2021 - Cover4
https://www.nxtbookmedia.com