Danfoss VLT Automation Drive FC 300 Instruction Manual page 82

4 How to Program
3-02 Minimum Reference
Range:
0.000 Unit* [-100000.000 - par. 3-03]
3-03 Maximum Reference
Range:
1500.000* [Par. 3-02 - 100000.000]
4
3-41 Ramp 1 Ramp-up Time
Range:
Size related [0.01-3600.00 s]
3-42 Ramp 1 Ramp-down Time
Range:
Size related [0.01-3600.00 s]
4-6
Function:
The Minimum reference is the minimum value obtained by the sum of all references.
reference is only active if Min - Max [0] is set in par. 3-00.
Function:
Enter the maximum reference. The maximum reference is the highest value obtainable by adding
all references together.
The Maximum Reference unit matches:
• The choice of configuration in par. 1-00
Torque
RPM; for [2], Nm.
• The unit selected in par. 3-01
Function:
Enter the ramp-up time, i.e. the acceleration time from 0 RPM to the synchronous motor speed
n . Choose a ramp-up time such that the output current does not exceed the current limit in par.
S
4-18 during ramping. The value 0.00 corresponds to 0.01 sec. in speed mode. See ramp-down time
in par. 3-42.
t acc s x n s RPM
Par
. 3 − 41 =
ref RPM
Δ
Function:
Enter the ramp-down time, i.e. the deceleration time from the synchronous motor speed n
RPM. Choose a ramp-down time so that no overvoltage arises in the inverter due to regenerative
operation of the motor, and so that the generated current does not exceed the current limit set in
par. 4-18. The value 0.00 corresponds to 0.01 s in speed mode. See ramp-up time in par. 3-41.
t dec s x n s RPM
Par
. 3 − 42 =
Δ ref RPM
MG.33.U2.22 - VLT ® is a registered Danfoss trademark
VLT ® Automation Drive FC 300
Instruction Manual High Power
Configuration Mode : for Speed closed-loop
Reference/Feedback Unit .
Minimum
[1],
to 0
s