Emerson Mentor MP User Manual

Parameter
description
protocol
Performance
Menu
13
The
local
reference
can
be
used
to
control
the
position
of
the
motor
shaft.
If
the
local
reference
disable
parameter
is
one
the
previously
written
value
The
local
reference
consists
of
a
turns,
a
position
and
a
fine
position
value.
When
Pr
13.24
is
zero
the
reference
is
a
48bit
position
made
from
these
Parameter
structure
Keypad and
format
Advanced parameter
descriptions
Serial comms
is used. This allows all three parts of the local reference position to be changed without data skew problems.
three values.
If Pr 13.24 is set to one the local reference is a 32bit position made from the position and fine position values. The position delta, used as the input to
the position controller, is calculated correctly even when the turns are ignored as the 32bit position is treated as a roll-over/roll-under counter. This
feature can be used, for example, with the local reference when only the position (and not the turns or fine position) is available. This feature is not
available when absolute mode is selected (Pr 13.11 = 1).
Mentor MP Advanced User Guide 179
Issue Number: 4 www.onxcontrol.com
13.22
Local reference fine position
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
Range
0 to 65,535
Default
0
Update rate
4 ms read
13.23
Local reference disable
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
Default
0
Update rate
4 ms read
13.24
Ignore local reference turns
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
Default
0
Update rate
4 ms read

Emerson Mentor MP Specifications

General

Brand	Emerson
Model	Mentor MP
Category	DC Drives
Language	English