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Omron SYSDRIVE 3G3RV Series User Manual

Omron SYSDRIVE 3G3RV Series
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C
ommunications Functions
6
-
9
1
nConverting
Register
Data
Register
data
(such
as
monitor
values
or
parameter
set
value
data)
is
placed
in
the
communications
data
block
of
the
message
data
(i.e.,
request
message
or
response
data).
The
data
in
each
register
is
sent
as
2-byte
data.
It
is
processed
under
the
following
rules
and
sent
in
hexadecimal.
The
data
is
converted
to
a
hexadecimal
value
using
a
minimum
setting
unit
for
each
register
of
1
For
example,
if
the
frequency
reference
is
60
Hz
and
the
minimum
unit
of
setting
is
0.01
Hz,
the
data
will
be
converted
as
follows:
60
Hz/0.01
(Hz)
=
6000
=
1770
Hex
The
minimum
unit
of
setting
of
each
parameter
is
given
in
the
description
of
the
parameter
and
in
the
parame-
ter
tables
in
Chapter
5
Parameters.
The
minimum
unit
of
setting
of
frequency
reference
data
or
frequency
monitor
data
is
determined
by
o1-03
(register
502
Hex:
frequency
reference/monitor
unit
selection).
The
unit
of
setting
of
each
of
the
three
registers
below
is
determined
by
the
set
value
in
o1-03.
The
set
value
in
o1-03
has
nothing
to
do
with
frequency
data
items
set
as
parameters
(e.g.,
frequency
references
1
through
16,
inching
frequency
reference,
maximum
fre-
quency,
minimum
output
frequency,
jump
frequency).
For
these
items,
the
unit
of
setting
is
as
shown
in
Chap-
ter
5
Parameters.
• Monitor
Items
Register
0023H:
Frequency
reference
monitor
Register
0024H:
Output
frequency
monitor
• Communications
Register
Register
0002H:
Frequency
reference
In
spite
of
the
set
value
in
o1-03,
however,
set
the
maximum
frequency
to
30000
when
the
frequency
refer-
ence
is
executed
with
a
broadcast
message.
In
this
case,
the
Inverter
rounds
off
any
value
less
than
0.01
Hz.
If
the
jump
frequency
is
100.0
Hz
and
the
minimum
unit
of
setting
is
0.01
Hz,
the
data
will
be
converted
as
follows:
100.0
(Hz)/0.01
(Hz)
=
10000
=
2710
Hex
Negative
values
are
expressed
in
2’s
complements
If
the
frequency
bias
in
H3-03
is
-100%,
the
minimum
unit
of
setting
will
be
1%
and
the
data
will
be
converted
as
follows:
100
(%)/1
(%)
=
100
=
0064
Hex
2’s
complement:
FF9C
Hex
Fig 6.61
Whether
the
data
is
positive
or
negative
is
determined
by
the
parameter
set
value.
The
MSB
of
negative-value
data
is
always
set
to
1.
Data
with
its
MSB
set
to
1
is
not,
however,
always
nega-
tive-value
data.
For
example,
the
setting
range
of
parameter
d3-01
(register
294
Hex:
jump
frequency
1)
is
within
a
range
from
0.00
to
400.0
Hz.
If
the
jump
frequency
is
400.0
Hz,
the
data
is
obtained
from
the
following
formula
and
its
0064 Hex 000000000 011 0100
111111111 100 1011
Bit reversed.
FF9B Hex
111111111 100 1100
1 is added.
FF9C Hex

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Omron SYSDRIVE 3G3RV Series Specifications

General IconGeneral
BrandOmron
ModelSYSDRIVE 3G3RV Series
CategoryInverter
LanguageEnglish

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