Danfoss VLT AutomationDrive FC 301 Programming Manual page 52

Parameter Descriptions
1-02 Flux Motor Feedback Source
Option:
[5] MCO
Encoder 2
X55
3 3
[12] MCB 102
Absolute
[13] 24V
encoder
27/29
1-03 Torque Characteristics
Option:
[0] Constant
*
torque
[1] Variable
torque
[2] Auto Energy
Optim.
[5] Constant
Power
50
VLT
Function:
The MCO encoder 1 X56 is only available with
motion control options MCO 305, MCO 350,
and MCO 351.
Configure the encoder interface in Parameter
group 32-0* Encoder 2.
The option is only available for VLT
Option MCB 102 with version 4.00 and higher
and when parameter 17-00 Encoders Connected
is set to [1] Two Encoders.
Single-signal HTL encoder connected to digital
inputs 27 and 29. 24 V encoder is configured in
parameter group 5.7* 24V Encoder Input.
Program terminals 27/29 to [0] No operation.
Function:
NOTICE
This parameter cannot be
adjusted while the motor is
running.
Select the torque characteristic
required.
VT and AEO are both energy-saving
operations.
Motor shaft output provides
constant torque under variable
speed control.
Motor shaft output provides
variable torque under variable
speed control. Set the variable
torque level in parameter 14-40 VT
Level.
Automatically optimizes energy
consumption by minimizing
magnetization and frequency via
parameter 14-41 AEO Minimum
Magnetisation and
parameter 14-42 Minimum AEO
Frequency.
The function provides a constant
power in the field weakening area.
The torque shape of motor mode is
used as a limit in the generator
mode. This is done to limit the
power in generator mode that
otherwise becomes considerably
larger than in motor mode, due to
the high DC-link voltage available
in generator mode.
P W = ω rad/s × T Nm
shaft mech
Danfoss A/S © 10/2019 All rights reserved.
®
AutomationDrive FC 301/302
1-03 Torque Characteristics
Option:
®
Encoder
1-04 Overload Mode
Option:
[0]
*
[1]
1-05 Local Mode Configuration
Option:
[0]
[1]
[2]
*
[4]
Function:
This relationship with the constant
power is shown in Illustration 3.5:
T[Nm] P[W]
T
nom
P
nom
ω
nom
Illustration 3.5 Constant Power
Function:
NOTICE
This parameter cannot be
adjusted while the motor is
running.
Use this parameter to configure the
frequency converter for either high
or normal overload. When selecting
the frequency converter size, always
review the technical data in the
operating guide or the design guide
to know the available output
current.
High torque Allows up to 160% over torque.
Normal torque For oversized motor - allows up to
110% over torque.
Function:
Select which application configu-
ration mode
(parameter 1-00 Configuration Mode),
that is application control principle,
to use when a local (LCP) reference
is active. A local reference can be
active only when
parameter 3-13 Reference Site is set
to [0] Linked to Hand/Auto or [2]
Local. By default the local reference
is active in hand-on mode only.
Speed open
loop
Speed Closed
Loop
As mode par
1-00
Positioning
P
T
2ω
ω [rad/S]
nom
M0013101