ELECTRICAL ENGINEERING
“FROM THE CIRCUIT DIAGRAM, WE ARE ABLE TO DERIVE THE CONNECTION/
WIRING LISTS AS WELL AS THE LAYING BOARD FOR THE HARNESS”
If a system is consistently
standardized and modularised, the
configuration can be implemented
using a configuration tool. “This
enables the easy creation of as-built
documentation for small series and
series products with their individual
options and variants,” says
Brinkmann.
Automating harness production
The consistent and automated
documentation creates the
prerequisites for automated
production of the electrical
equipment. For instance, the
mechanical processing of the
cabinets can be facilitated. The
machine data for sawing, drilling
and finishing can be transferred out
of the CAD data. And when a
routing module is used in electrical
engineering, this data is sent to the
cable harnessing service that is
mostly employed for this task.
Located near the German border
with Switzerland, Moser
Fahrzeugtechnik supports the
design and manufacture of electrical
systems of smaller mobile machines
like tow tractors, communal vehicles
and airport ground equipment.
Daniel Moser, managing director,
explains the optimal way to design
the harness: “In the best case, our
customer OEM sends us the 3D data
of the machine including hydraulic
components. On this basis, we
design the cable harness in Eplan P8
TOP LEFT: Daniel Moser
(right), managing director
and founder of Moser
Fahrzeugtechnik gives
advice how to design the
electrical system of a
mobile machine
TOP RIGHT: A direct
connection from the
CAD system to crimping
machines saves time
and money
BOTTOM RIGHT: The laying
board – here the automation
usually comes to an end
46 iVTInternational.com February 2020
Daniel Moser, managing director, Moser Fahrzeugtechnik
and the Harness module. This
enables us to generate all cable and
wire lengths automatically, including
our ‘Komax list’ for the crimping
machine. From the circuit diagram,
we are able to derive the connection/
wiring lists as well as the laying
board for the harness.”
When it comes to designing the
harness, Moser recommends
modular thinking. “We strive for
dividing the wiring system into four
modules: control unit, cable harness,
control/central electrics and
consumers.” Based on this strategy,
the OEM can install the kits by
simply connecting the modules in a
plug-and-play mode: “We have
tested the kits 100% before delivery
and programmed the PLC modules.”
The goal: seamless engineering
These are just some of many
‘adjustment screws’ for optimising
the electrical design of mobile
machines. The biggest impact, it
seems, comes from the CAD tools
that are used and from a clever
approach to move from one-off
design to a standardised and
modularised engineering process.
This also includes a seamless
integration into the engineering
workflow – to mechanical
engineering, and to purchase and
production planning. iVT
/iVTInternational.com