3-41 Ramp1 Ramp-up Time
Range:
Function:
3.00 s*
[0.05 - 3600.00 s ]
Enter ramp-up time from 0 Hz to rated motor frequency (f
M,N
) set in par. 1-23.
Choose a ramp-up time ensuring that torque limit is not exceeded, see par. 4-16.
3-42 Ramp1 Ramp-down Time
Range:
Function:
3.00*
[0.05 - 3600.00 s]
Enter ramp down time from rated motor frequency (f
M,N
) in par. 1-23 to 0 Hz.
Choose a ramp down time that does not cause over-voltage in inverter due to regenerative operation
of motor. Furthermore, regenerative torque must not exceed limit set in par. 4-17.
4.4.2 Quick Menu Parameters - PI Basic Settings QM2
The following is a brief description of the parameters for the PI Basic Settings. For a more detailed description, please see
VLT Micro Drive Programming
Guide
, MG.02.CX.YY.
1-00 Configuration Mode
Range:
Function:
[]
Choose [3] Process Closed Loop
3-02 Min. Reference
Range:
Function:
[-4999 - 4999]
Sets limits for set-point and feedback.
3-03 Max. Reference
Range:
Function:
[-4999 - 4999]
Sets limits for set-point and feedback.
3-10 Preset Reference
Range:
Function:
[-100.00 - 100.00]
Preset [0] works as set-point.
4-12 Motor Speed Low Limit
Range:
Function:
[0.0 - 400 Hz]
Lowest possible output frequency.
4-14 Motor Speed High Limit
Range:
Function:
[0.0 - 400.00 Hz]
Highest possible output frequency.
NB!
Default 65 Hz should normally be reduced to 50 - 55 Hz.
4 Programming
VLT
®
Micro Drive FC 51 Operating Instructions
22
MG.02.A4.02 - VLT
®
is a registered Danfoss trademark
4