Emerson Mentor MP User Manual

Parameter
description
protocol
Performance
Menu
3
0
=
0
ms,
1
=
1
ms,
2
=
2
ms,
3
=
4
ms,
4
=
8
ms,
5
=
16
ms
The
drive
encoder
reference
(Pr
3.45
)
gives
the
speed
of
the
encoder
input
as
a
percentage
of
the
maximum
drive
encoder
reference
provided
that
The
drive
encoder
input
can
be
used
as
a
reference
to
control
a
drive
parameter.
The
drive
encoder
reference
parameter
(Pr
3.45
)
gives
the
speed
of
The
encoder
is
re
-
initialized
when
th
is
is
set
to
1
or
encoder
supplies
are
restored
or
a
trip
reset
Pr
3.47
is
automatically
reset
when
re
-
initialization
is
Parameter
structure
Keypad and
format
Advanced parameter
descriptions
Serial comms
A sliding window filter may be applied to the feedback taken from the drive encoder. This is particularly useful in applications where the drive encoder
is used to give speed feedback for the speed controller and where the load includes a high inertia, and so the speed controller gains are very high.
Under these conditions, without a filter on the feedback, it is possible for the speed loop output to change constantly from one current limit to the other
and lock the integral term of the speed controller.
the number of encoder lines per revolution (Pr 3.34 { Fb05, 0.75 }) has been set up correctly. This may then be scaled and routed to any non-protected
drive parameter.
the encoder input as a percentage of the maximum drive encoder reference provided that the number of encoder lines per revolution (Pr 3.34 { Fb05,
0.75 }) has been set up correctly. This may then be scaled and routed to any non-protected drive parameter.
complete. To allow detection of non initialized state Pr 3.48 remains zero for 500µs.
Mentor MP Advanced User Guide 53
Issue Number: 4 www.onxcontrol.com
3.42
Drive encoder filter
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
Range
0 to 5 (0 to16 ms)
Default
2
Update rate
Background read
3.44
Drive encoder reference scaling
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 4.000
Default
1.000
Update rate
Background read
3.46
Drive encoder reference destination
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
2
1
1
1
1
Range
00.00 to 22.99
Default
00.00
Update rate
Read on reset
3.43
Maximum drive encoder reference
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
1000
Update rate
Background read
3.45
Drive encoder reference
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
Range
±100.0 %
Update rate
4 ms write
3.47
Re-initialise position feedback
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
Update rate
Background read

Emerson Mentor MP Specifications

General

Brand	Emerson
Model	Mentor MP
Category	DC Drives
Language	English