Emerson Mentor MP User Manual

Parameter
x.00
Parameter
protocol
Performance
When
in
current
mode
[Pr
5.75
=
OFF
(0)]
this
is
the
maximum
flux
l
imit
of
the
field
weakening
voltage
loop.
The
maximum
value
of
this
parameter
When
in
current
mode
[Pr
5.75
=
OFF
(0)]
this
is
the
minimum
value
of
flux
demand
to
prevent
excessive
field
weakening
and
hence
over
speeding.
This
parameter
will
be
set
to
th
e
field
current
of
the
motor
and
will
define
the
100
%
point
for
the
field
controller.
Increasing
this
parameter
will
allow
the
loop
to
track
the
current
demand
more
closely.
Setting
the
value
too
high
will
result
in
instability.
Menu 5
Parameter
structure
Keypad and
description format
Advanced parameter
descriptions
Serial comms
depends upon the setting of the rated current Pr 5.70 { SE10, 0.31 }.
MAX_FIELD_FLUX = 100 x 25 / Pr 5.70 { SE10, 0.31 }.
For values of Pr 5.70 { SE10, 0.31 } less than 20.8A the MAX_FIELD_FLUX will be limited to 120 %.
This parameter becomes the maximum voltage demand when field voltage mode is selected Pr 5.75 = On (1).
This parameter becomes the minimum voltage demand when field voltage mode is selected Pr 5.75 = On (1).
NOTE
If Flux feedback is selected from Pr 5.89 and the value falls below that of the value set in Pr 5.69 , then no action can be taken by the drive as it does
not control the Flux demand.
90 Mentor MP Advanced User Guide
www.onxcontrol.com Issue Number: 4
5.70
{SE10, 0.31}
Rated field current
Coding
Bit
SP
FI
D
E
TE
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
2
1
1
1
1
1
Range
0
to
FIELD_CURRENT_SET_MAX
Default
Size
1
-
Eur:
2A,
USA:
8A
Size 2A&B - Eur: 3A, USA: 20A
Size 2C&D - Eur: 5A, USA: 20A
Second motor
parameter
Pr 21.24
Update rate
Background read
5.71
Flux loop P gain
Coding
Bit
SP
FI
DE
TE
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
2
1
1
1
Range
0
to
30.00
Default
3
Second motor
parameter
Pr 21.31
Update rate
Background read
5.69
Minimum flux / Voltage limit
Coding
Bit
SP
FI
DE
TE
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
Range
0
to
120.0
%
Default
50
%
Update rate
Background read
5.68
Maximum flux / Voltage limit
Coding
Bit
SP
FI
DE
TE
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
1
Range
0
to
MAX_FIELD_FLUX
%
Default
100
%
Update rate
Background read

Emerson Mentor MP Specifications

General

Brand	Emerson
Model	Mentor MP
Category	DC Drives
Language	English