Danfoss VLT AutomationDrive FC 300 Programming Manual page 35

Parameter Descriptions
1-02 Flux Motor Feedback Source
Option:
[7] Analog input 54
[8] Frequency input 29
[9] Frequency input 33
3 3
This parameter cannot be adjusted while the motor is
running.
1-03 Torque Characteristics
Option:
[0] Constant
torque
*
[1] Variable
torque
[2] Auto
Energy
Optim.
[5] Constant
Power
This parameter cannot be adjusted while the motor is
running.
1-04 Overload Mode
Option:
[0] High torque
*
[1] Normal torque For oversized motor - allows up to 110% over
This parameter cannot be adjusted while the motor is
running.
34
FC 300 Programming Guide
Function:
Function:
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 14-40 VT Level.
Automatically optimises energy consumption by
minimising magnetisation and frequency via
14-41 AEO Minimum Magnetisation and
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 generatoric mode. This is done to limit the
power in generatoric mode that otherwise
becomes considerable larger than in motor mode,
due to the high DC link voltage available in
generatoric mode.
P shaft W = ω mech rad / s × T Nm
This relationship with the constant power is
illustrated in the following graph:
T[Nm] P[W]
T
nom
P
nom
ω 2ω
nom nom
Function:
Allows up to 160% over torque.
torque.
MG.33.MB.02 - VLT
1-05 Local Mode Configuration
Option:
[0] Speed open
loop
[1] Speed closed
loop
[2] As mode par
*
1-00
1-06 Clockwise Direction
This parameter defines the term "Clockwise" corresponding to the
LCP direction arrow. Used for easy change of direction of shaft
rotation without swapping motor wires. (Valid from SW version
5.84)
Option:
[0]
*
[1]
This parameter cannot be changed while the motor is
running.
3.3.2 1-1* Motor Selection
P
This parameter group cannot be adjusted while the motor is
running.
T
ω [rad/S]
1-10 Motor Construction
Option:
[0] Asynchron
*
[1] PM, non salient
SPM
Motor construction can either be asynchronous or
permanent magnet (PM) motor.
®
is a registered Danfoss trademark
Function:
Select which application configuration mode
(1-00 Configuration Mode), i.e. application
control principle, to use when a Local (LCP)
Reference is active. A Local Reference can be
active only when 3-13 Reference Site is set to
[0] or [2]. By default the local reference is
active in Hand Mode only.
Function:
Normal Motor shaft will turn in clockwise
direction when the frequency
converter is connected U -> U; V ->
V, and W -> W to motor.
Inverse Motor shaft will turn in counter
clockwise direction when the
frequency converter is connected
U -> U; V -> V, and W -> W to
motor.
Function:
Select the motor construction type.
For asynchronous motors.
For permanent magnet (PM) motors.
Note that PM motors are divided into two
groups, with either surface mounted (non
salient) or interior (salient) magnets.