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Engineering Guide CDA3000
1 Analysis of task
1.1 Systematic
thinking
efore beginning your project planning you should read through this
section - it will help you identify how to attain the new solutions you
need.
What can we learn from system analysis? The term "system" in this
context means:
Thinking differently
[leads to]
Belief
[in turn resulting in]
Acting differently
➢ a unified whole, distinct from its surroundings
➢ comprising individual elements
➢ between which fixed relationships exist
➢ and which perform specific functions.
The starting point for any system analysis is to record, understand and
order the existing inter-relationships within a system. To this end, the sys-
tem is split down into its subsidiary areas (components) such that all the
individual components are distinct from each other and the relations
between them become visible.
1.1.1 Inverter system
An inverter system comprises the following individual components and
modules:
The chain is only as strong as
its weakest link
Figure 1.1 Inverter system
B
• Inverter module • Motor choke
• Operator module • Braking resistor
• User module • Cable
• Communication module • Motors
• Software modules •Gearing
• Line choke •etc.
• Mains filter
Software
modules
Inverter
module
User
module
Motor
Comm.
module
Braking
resistor
Line choke
Services
Gearing
Interface
to the
System
environment
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