Danfoss VLT AutomationDrive FC 301 Programming Manual page 43

Parameter Descriptions
1-02 Flux Motor Feedback Source
Option: Function:
NOTICE
This parameter cannot be adjusted
while the motor is running.
Select the interface for which to receive
feedback from the motor.
[1] 24V encoder A and B channel encoder, which can be
*
connected to the digital input terminals
32/33 only. Program Terminals 32/33 to No
operation.
[2] MCB 102 Encoder module option, which can be
configured in parameter group 17-1* Inc. Enc.
Interface.
NOTICE
This is valid for FC 302 only.
[3] MCB 103 Optional resolver interface module, which
can be configured in parameter group 17-5*
Resolver Interface.
[4] MCO
Encoder interface 1 of the optional VLT
Encoder 1
Motion Control MCO 305.
X56
[5] MCO
Encoder interface 2 of the optional VLT
Encoder 2
Motion Control MCO 305.
X55
1-03 Torque Characteristics
Option: 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.
[0] Constant Motor shaft output provides constant torque
torque under variable speed control.
*
[1] Variable Motor shaft output provides variable torque
torque under variable speed control. Set the variable
torque level in parameter 14-40 VT Level.
[2] Auto Automatically optimizes energy consumption by
Energy minimizing magnetization and frequency via
Optim. parameter 14-41 AEO Minimum Magnetisation
and parameter 14-42 Minimum AEO Frequency.
[5] Constant The function provides a constant power in the
Power 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
MG33ML02
Programming Guide
1-03 Torque Characteristics
Option:
1-04 Overload Mode
Option:
®
®
[0] High
*
torque
[1] Normal
torque
1-05 Local Mode Configuration
Option:
[0] Speed open
loop
[1] Speed Closed
Loop
[2] As mode par
*
1-00
[4] Positioning
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Function:
mode, due to the high DC-link voltage available
in generator mode.
P W = ω rad/s × T Nm
shaft mech
This relationship with the constant power is
illustrated in Illustration 3.5:
T[Nm] P[W]
T
nom
P
nom
ω 2ω
nom 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 instructions or the design guide to
know the available output current.
Allows up to 160% over torque.
For oversized motor - allows up to 110% over
torque.
Function:
Select which application configuration
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 local mode
only.
3 3
P
T
ω [rad/S]
41