Danfoss VLT AutomationDrive FC 300 Programming Manual page 57

3 Parameter descriptions
3
1-67 Load Type
Option:
[0] * Passive load
[1] Active load
This parameter is available for FC 302 only.
1-68 Minimum Inertia
Range:
Application [Application dependant]
dependent*
This parameter cannot be adjusted while motor is running.
1-69 Maximum Inertia
Range:
Application [Application dependant]
dependent*
This parameter cannot be adjusted while motor is running.
3.3.7 1-7* Start Adjustments
Parameters for setting special motor start features.
1-71 Start Delay
Range:
0.0 s* [0.0 - 10.0 s]
1-72 Start Function
Option:
[0] DC Hold/delay time
[1] DC Brake/delay time
[2] * Coast/delay time
[3] Start speed cw
56
Min. Current at Low Speed
Par. 1-66
loop
[0] only. The frequency converter runs with constant current through motor for speeds below
10 Hz.
For speeds above 10 Hz, the motor flux model in the frequency converter controls the motor.
Torque Limit Motor Mode
par. 4-16 and / or par. 4-17
Min. Current at Low Speed
adjust par. 1-66
Min. Current at Low Speed
par. 1-66 . The current setting in par. 1-66
composed of the torque generating current and the magnetizing current.
Torque Limit Motor Mode
Example: Set par. 4-16
Mode to 60%. par. 1-66 Min. Current at Low Speed
on the motor size.
This parameter is available for FC 302 only.
Function:
For conveyers, fan and pump applications.
For hoisting applications, used in slip compensation at low speed. When
Min. Current at Low Speed
set par. 1-66
Function:
Needed for average inertia calculation. Enter the minimum moment of inertia of the mechanical
system. Par. 1-68 Minimum Inertia and par. 1-69
the Proportional Gain in the speed control, see par. 30-83
This parameter is available for FC 302 only.
Function:
Active in Flux Open Loop only. Used to compute the acceleration torque at low speed. Used in the
torque limit controller.
This parameter is available for FC 302 only.
Function:
This parameter refers to the start function selected in par. 1-72
Enter the time delay required before commencing acceleration.
Function:
Select the start function during start delay. This parameter is linked to par. 1-71
Energizes motor with a DC holding current (par. 2-00
Energizes motor with a DC braking current (par. 2-01
Motor coasted during the start delay time (inverter off).
Only possible with VVC+.
®
MG.33.M8.02 - VLT is a registered Danfoss trademark
FC 300 Programming Guide
Configuration Mode = Speed open
is enabled when par. 1-00
Torque Limit Generator Mode
. The parameter with the highest value adjusts
Min. Current at Low Speed
to 100% and set par. 4-17
automatically adjusts to about 127%, depending
Active Load
to a level which corresponds to maximum torque.
Maximum Inertia are used for pre-adjustment of
Speed PID Proportional Gain
Start Function
DC Hold Current ) during the start delay time.
DC Brake Current
) during the start delay time.
automatically
is
Torque Limit Generator
[1] is selected,
.
.
Start Delay
.