Emerson Mentor MP User Manual

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
{
d
i
03,
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
F
I
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

Emerson Mentor MP Specifications

General

Brand	Emerson
Model	Mentor MP
Category	DC Drives
Language	English