Emerson Mentor MP User Manual

Parameter
description
protocol
Performance
Menu
3
The
hard
speed
reference
is
a
reference
value
which
does
not
pass
through
the
ramp
system
(Menu
2).
It
is
added
to
the
normal
post
ramp
speed
0,
drv
:
Drive
encoder
Provided
the
setup
parameters
for
the
drive
encoder
are
correct
this
parameter
shows
the
encoder
speed
in
rpm.
This
is
used
in
conjunction
with
Pr
3.29
.
See
the
description
under
Pr
3.29
overleaf.
Parameter
structure
Keypad and
format
Advanced parameter
descriptions
Serial comms
reference. Its value may be written from the keypad, via serial comms, from an analog input or from an encoder input. This parameter can also be
used by the position controller (Menu 13) as the speed reference input. The hard speed reference is selected when Pr 3.23 = 1.
The position feedback from the encoder connected to the drive itself is used to derive the speed feedback for the speed controller.
1, Slot1 : Solutions Module in slot 1
The position feedback from the option module in option module slot 1 is used to derive the speed feedback for the speed controller. If a position
feedback category option module is not installed in slot 1 the drive produces an Enc9 trip if the drive is active.
2, Slot2 : Solutions Module in slot 2
3, Slot3 : Solutions Module in slot 3
4, tACHO : Tachometer
5, ESt.SPEED : Estimated speed
It should be noted that the value shown by this parameter is measured over a 16 ms sliding window period (in the same way as Pr 3.02 { di05, 0.40 }),
and so the ripple in this parameter accessible via comms or by an Solutions Module is as defined for Pr 3.02 { di05, 0.40 }. The FI attribute for this
parameter is set, and so further filtering is applied when this parameter is viewed with one of the drive keypads.
Mentor MP Advanced User Guide 49
Issue Number: 4 www.onxcontrol.com
3.26
{Fb01, 0.71}
Speed feedback selector
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
N
C
NV
PT
US
RW
BU
PS
1
1
1
1
Range
0 to 5
Default
5
Second motor
parameter
Pr 21.21
Update rate
Background read (Only has any effect when the drive is disabled)
3.27
{Fb09, 0.79}
Drive encoder speed feedback
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
1
Range
±10,000.0 rpm
Update rate
4 ms write
3.28
Drive encoder revolution counter
Coding
Bit
SP
FI
DE
Txt
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
Range
±32,678 revolutions
Update rate
4 ms write
3.23
Hard speed reference selector
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