Danfoss VLT AutomationDrive FC 301 Programming Manual page 37

Parameter Descriptions
1-02 Flux Motor Feedback Source
Option: Function:
[4] MCO Encoder interface 1 of the optional
Encoder 1 programmable motion controller MCO 305.
X56
[5] MCO Encoder interface 2 of the optional
Encoder 2 programmable motion controller 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 14-40 VT Level.
[2] Auto Automatically optimises energy consumption by
Energy minimising magnetisation and frequency via
Optim. 14-41 AEO Minimum Magnetisation and
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 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 Illustration 3.5:
T[Nm]
T
nom
P
nom
Illustration 3.5 Constant Power
1-04 Overload Mode
Option: Function:
NOTICE
This parameter cannot be adjusted
while the motor is running.
®
VLT AutomationDrive FC 301/302 Programming Guide
P[W]
P
T
ω 2ω
ω [rad/S]
nom nom
MG33MH02 - Rev. 2013-09-30
1-04 Overload Mode
Option: Function:
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.
[0] High Allows up to 160% over torque.
*
torque
[1] Normal For oversized motor - allows up to 110% over
torque torque.
1-05 Local Mode Configuration
Option: 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] Linked to Hand/Auto or [2] Local. By default
the local reference is active in Hand Mode
only.
[0] Speed open
loop
[1] Speed
Closed Loop
[2] As mode
*
par 1-00
1-06 Clockwise Direction
Option: Function:
NOTICE
This parameter cannot be adjusted
while the motor is running.
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.
[0] Normal Motor shaft turns in clockwise direction when the
*
frequency converter is connected U ⇒ U; V⇒V, and
W ⇒ W to motor.
[1] Inverse Motor shaft turns in counter clockwise direction
when the frequency converter is connected U⇒U;
V⇒V, and W⇒ W to motor.
1-07 Motor Angle Offset Adjust
This parameter is only valid for FC 302 and only in combination
with a PM motor with feedback.
Range: Function:
0 [Manual] The functionality of this option depends on the
*
type of the feedback device. This option sets the
3 3
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