Danfoss VLT Decentral Drive FCD 302 Operating Manual page 74

VLT® Decentral Drive FCD 302
Operating Guide
Table 32: Parameter 3-02 Minimum Reference
Range
Size
[-999999.999 - pa-
rela-
rameter 3-03 Refer-
ted*
enceFeedbackUnit]
Table 33: Parameter 3-03 Maximum Reference
Range
Size [parameter 3-02 -
rela- 999999.999 Referen-
ted* ceFeedbackUnit]
Table 34: Parameter 3-41 Ramp 1 Ramp Up Time
Range Function
Size rela- [0.01 - Enter the ramp-up time, that is, the acceleration time from 0 RPM to the synchronous motor speed n
ted* 3600 s]
Select a ramp-up time which prevents the output current from exceeding the current limit in parameter
4-18 Current Limit during ramping. The value 0.00 corresponds to 0.01 s in speed mode. See ramp-down
time in parameter 3-42 Ramp 1 Ramp Down Time.
Table 35: Parameter 3-42 Ramp 1 Ramp Down Time
Range Function
Size re- [0.01 - Enter the ramp-down time, that is, the deceleration time from the synchronous motor speed n
lated* 3600 s]
Select a ramp-down time such that no overvoltage occurs in the inverter due to regenerative operation
of the motor, and such that the generated current does not exceed the current limit in parameter 4-18
Current Limit. The value 0.00 corresponds to 0.01 s in speed mode. See ramp-up time in parameter 3-41
Ramp 1 Ramp Up Time.
74 | Danfoss A/S © | 2020.07
Function
Enter the minimum reference. The minimum reference is the lowest value obtainable by summing
all references. Minimum reference is active only when parameter 3-00 Reference Range is set to [0]
Min.–Max.The minimum reference unit matches:
•
The configuration of parameter 1-00 Configuration Mode for [1] Speed closed loop set to RPM
and for [2] Torque set to Nm.
•
The unit selected inparameter 3-01 Reference/Feedback Unit.
If option [10] Synchronization is selected in parameter 1-00 Configuration Mode, this parameter de-
fines the maximum speed deviation when performing the position offset defined in parameter
3-26 Master Offset.
Function
Enter the maximum reference. The maximum reference is the highest value obtainable by sum-
ming all references. The maximum reference unit matches:
•
The configuration of parameter 1-00 Configuration Mode for [1] Speed closed loop set to RPM
and for [2] Torque set to Nm.
• The unit selected inparameter 3-00 Reference Range.
If option [9] Positioning is selected in parameter 1-00 Configuration Mode, this parameter defines
the default speed for positioning.
Appendix
to 0 RPM.
s
AQ267036816112EN-000101 / 130R0208
.
s