Menu
2
Parameter
Parameter description
protocol
Performance
The
motor
and
load
inertia
(Pr
3.18),
motor
torque
per
amp
(Pr
5.32)
and
the
rate
of
change
of
the
ramp
output
(Pr
2.01
{di03,
0.38})
are
used
to
When
this
parameter
is
0
the
ramp
rates
will
be
the
time
to
reach
the
maximum
speed
(Pr
1.06
{SE02,
0.23}),
for
example
if
Pr
2.39
=
0
and
Pr
1.06
When
the
S
ramp
is
enabled
this
parameter
defines
the
time
in
each
curved
part
of
the
S
ramp.
The
total
ramp
time
will
be
normal
ramp
rate
time
plus
Only
Pr
2.11
{SE03,
0.24}
is
used
in
conjunction
with
this
parameter
to
set
the
time.
When
this
parameter
is
1
(default)
and
the
S
ramp
is
enabled
then
Pr
2.40
is
used
to
define
the
S
ramp
time.
When
this
parameter
is
0
and
the
S
ramp
structure
Keypad
and
format
Advanced
parameter
descriptions
Serial
comms
produce
a
torque
feed
forward
value
that
will
accelerate
or
decelerate
the
load
at
the
required
rate.
This
value
can
be
used
as
a
feed
forward
term
that
is
added
to
the
speed
controller
output
if
Pr
4.22
is
set
to
one.
Pr
2.38
shows
the
torque
value
as
a
percentage
of
rated
active
current.
{SE02,
0.23}
=
1500
rpm
and
Pr
2.11
{SE03,
0.24}
=
10
s
then
the
drive
will
take
10
s
to
accelerate
from
0
rpm
to
1500
rpm.
When
this
parameter
is
not
0
the
ramp
times
will
be
the
time
from
0
rpm
to
the
value
in
Pr
2.39,
for
example
setting
Pr
2.39
=
1000
rpm
and
Pr
2.11
{SE03,
0.24}
=
5
s
the
drive
will
take
5
s
to
accelerate
from
0
rpm
to
1000
rpm.
this
parameter
when
Pr
2.40
is
less
than
or
equal
the
linear
ramp
time
set
by
Pr
2.11
{SE03,
0.24}.
When
Pr
2.40
is
greater
than
the
linear
ramp
time
the
total
ramp
time
will
be
J
=
(Pr
2.11
{SE03,
0.24}
x
Pr
2.40
x
1000)
/
Pr
1.06
{SE02,
0.23}
J
can
then
be
used
in
equation
in
parameter
description
for
Pr
2.07.
is
enabled
then
Pr
2.07
is
used
to
define
the
S
ramp
limit.
40
Mentor
MP
Advanced
User
Guide
www.onxcontrol.com
Issue
Number:
4
2.39
Ramp
rate
speed
units
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
Range
0
to
10,000
rpm
Default
0
Update
rate
Background
read
2.40
Time
of
S
ramp
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
3
1
1
1
Range
0.000
to
100.000
s
Default
1.250
Update
rate
Background
read
2.41
S
ramp
mode
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
Default
1
Update
rate
Background
read
2.38
Inertia
compensation
torque
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
Range
±1,000.0
%
Update
rate
4
ms
write
Pr
1.06
{SE02,
0.23}
Pr
2.06
Pr
2.07
Pr
2.11
{SE03,
0.24}
Pr
2.39
Pr
2.40
Pr
2.41
Total
ramp
time
(s)
1750.0
Off
3.6
5.000
0
1.250
On
5.00
1750.0
On
3,6
5.000
0
1.250
On
6.25
1750.0
On
3.6
5.000
0
10.000
On
14.14