Danfoss FC 300 Programming Manual page 48

2. How to Programme
2
1-67 Load Type
Option:
*
Passive load
[0]
[1] Active Load
This parameter is available for FC 302 only.
1-68 Minimum Inertia
Range:
*
0.0048 [0.0001 - Par. 1-69]
This parameter cannot be adjusted while motor is running.
1-69 Maximum Inertia
Range:
*
0.0048 [0 - 0.4800]
This parameter cannot be adjusted while motor is running.
2.4.7. 1-7* Start Adjustments
Parameters for setting special motor start features.
1-71 Start Delay
Range:
*
0.0s [0.0 - 10.0 s]
1-72 Start Function
Option:
[0] DC hold/ delay time
[1] DC Brake/delay time
*
Coast/delay time
[2]
[3] Start speed/ current
clockwise operation
48
For speeds above 10 Hz, the motor flux model in the frequency converter controls the motor. Par. 4-16
Limit Motor Mode Torque Limit Generator Mode
and / or par. 4-17
with the highest value adjusts par. 1-66. The current setting in par. 1-66 is composed of the torque generating
current and the magnetizing current.
Torque Limit for Motor Mode
Example: Set par. 4-16
Mode
to 60%. Par. 1-66 automatically adjusts to about 127%, depending on the motor size.
This parameter is available for FC 302 only.
Function:
For conveyers, fan and pump applications.
For hoisting applications. When Active Load
which corresponds to maximum torque.
Function:
Enter the minimum moment of inertia of the mechanical system. Par. 1-68 and par. 1-69
used for pre-adjustment of the Proportional Gain in the speed control, see par. 7-02
Gain
.
This parameter is available for FC 302 only.
Function:
Enter the maximum moment of inertia of the mechanical system. Par. 1-68
used for pre-adjustment of the Proportional Gain in the speed control, see par. 7-02
Gain
.
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) during the start delay time.
Energizes motor with a DC braking current (par. 2-01) during the start delay time.
Releases shaft coasted converter during the start delay time (inverter off).
Only possible with VVC+.
Connect the function described in par. 1-74
time.
Regardless of the value applied by the reference signal, the output speed applies the setting of the start speed
in par. 1-74 or par. 1-75 and the output current corresponds to the setting of the start current in par. 1-76
®
MG.33.M3.02 - VLT is a registered Danfoss trademark
FC 300 Programming Guide
automatically adjust par. 1-66. The parameter
to 100% and set par. 4-17
[1] is selected, set par. 1-66 Min. Current at Low Speed to a level
Minimum Inertia
Start Function
.
Start Delay
Start Speed (RPM) and par. 1-76 Start Current
Torque
Torque Limit for Generating
Maximum Inertia are
Speed PID Proportional
and par. 1-69 are
Speed PID Proportional
.
in the start delay
Start