ServoWire
Motion
&
Logic
Controller
Manual
Terms
&
Mnemonics
Chapter 11
Terms & Mnemonics
Terms
&
Mnemonics
There
are
a
number
of
terms
or
"buzzwords"
which
are
often
used
in
the
Motion
Control
Industry,
some
of
which
have
very
specific
meanings
in
ORMEC's
products
and
systems.
This
section
attempts
to
define
many
of
these
terms
used
in
this
document
which
may
be
unfamiliar.
Absolute
Encoder
‐
a
sensing
device
that
provides
the
position
of
the
motor
shaft
relative
to
a
fixed
reference
point
at
power
up
without
having
move
the
motor
shaft
to
determine
that
point.
In
the
case
of
a
multiple
revolution
absolute
rotary
encoder,
the
current
position
may
be
multiple
turns
away
from
the
reference
point.
Axis
‐
In
motion
control,
this
term
normally
refers
to
one
of
the
servomotors
in
the
system,
either
by
name
or
Axis
‐
ID
(Identification
number)
from
1
to
16.
It
is
also
used
to
refer
to
any
Master
(Pacer)
Encoders
in
the
system.
Many
ORMEC
pre
‐
defined
variables
in
the
SMLC
are
defined
for
each
axis
in
the
system
and
are
therefore
indexed
by
Axis
‐
ID
name.
CoDeSys
–
Co
ntroller
De
velopment
Sy
stem.
The
IEC
‐
61131
‐
3
runtime
system
developed
by
3S
Software
used
on
the
SMLC.
CoDeSys
IDE
–
The
CoDeSys
Integrated
Development
Environment
is
the
Win32
based
application
that
allows
you
to
develop,
download
and
debug
SMLC
programs.
Current
Source
‐
The
ability
for
a
device
to
switch
and
provide
current
for
a
circuit.
Current
Sink
‐
The
ability
for
a
device
to
switch
and
accept
the
current
in
a
circuit.
Electronic
Gearing
‐
A
means
of
precisely
coordinating
the
motion
of
a
number
of
servo
axes
with
a
pacer
(master)
axis.
The
master
axis
can
be
an
encoder
or
a
servo
axis.
Encoder
‐
A
digital
position
transducer
used
to
determine
the
position
of
a
motor,
a
rotating
shaft
on
a
machine
or
a
linear
position
associated
with
a
machine.
It
has
two
quadrature
channels
(A
&
B)
which
determine
incremental
movements
and
a
single
encoder
reference
channel
(Z)
which
defines
a
unique
position
within
its
travel.
Most,
but
not
all,
position
encoders
internally
use
optical
gratings
and
sensors.
Encoder
Zero
Reference
‐
A
signal
generated
by
the
position
encoder
once
per
revolution,
which
may
be
used
to
determine
the
encoder's
overall
angular
or
linear
orientation.
Also
sometimes
called
an
encoder
marker
pulse
.
SMLC
‐
004a
47
Summary of Contents for SMLC 160
Page 2: ...ServoWire Motion Logic Controller Manual General Description ii SMLC 004a...
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Page 28: ...ServoWire Motion Logic Controller Manual System Power Wiring Interlocks 20 SMLC 004a...
Page 38: ...ServoWire Motion Logic Controller Manual WAGO I O Installation Operation 30 SMLC 004a...
Page 46: ...ServoWire Motion Logic Controller Manual Getting Started 38 SMLC 004a...
Page 52: ...ServoWire Motion Logic Controller Manual Maintenance Troubleshooting 44 SMLC 004a...
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Page 65: ...ServoWire Motion Logic Controller Manual Appendix C Profibus Cable Drawing SMLC 004a 57...
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