Danfoss VLT AutomationDrive FC 302 Programming Manual page 39

Parameter Descriptions
1-02 Flux Motor Feedback Source
Option: Function:
[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
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 parameter 14-40 VT Level.
[2] Auto Automatically optimises energy consumption by
Energy minimising magnetisation 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 considerable larger than in motor
mode, due to the high DC-link voltage available
in generator 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
®
VLT AutomationDrive FC 301/302 Programming Guide
P[W]
P
T
ω 2ω
ω [rad/S]
nom nom
MG33MI02 - Rev. 2013-11-20
1-04 Overload Mode
Option: 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.
[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
(parameter 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
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 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.
3 3
37