Danfoss VLT AutomationDrive FC 300 Instruction Manual page 54

4. How to Program
4
52
3-02 Minimum Reference
Range:
0.000 [-100000.000 - par.
3-03]
*
Unit
3-03 Maximum Reference
Range:
1500.00 [Par. 3-02 -
* 100000.000]
0
3-41 Ramp 1 Ramp-up Time
Range:
* [0.01 - 3600.00 s]
s
3-42 Ramp 1 Ramp-down Time
Range:
Size re- [0.01 - 3600.00 s]
lated
MG.33.A9.22 - VLT is a registered Danfoss trademark
VLT
Function:
Minimum reference
The is the minimum value obtained by the
sum of all references. Minimum reference
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
Mode Speed closed-loop
: for
Nm.
• The unit selected in par. 3-01
Unit
.
Function:
Enter the ramp-up time, i.e., the acceleration time from 0 RPM
to the rated motor speed n
M,N
time such that the output current does not exceed the current
limit in par. 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 s × n
acc
Par
. 3 41 =
Function:
Enter the ramp-down time, i.e., the deceleration time from the
rated motor speed n (par. 1-25) to 0 RPM. Choose a ramp-
M,N
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
®
AutomationDrive FC 300 Instruction
Min -
is only active if
Configuration
Torque
[1], RPM; for [2],
Reference/Feedback
(par. 1-25). Choose a ramp-up
( 25 )
par . 1 RPM
M , N
ref RPM
Manual