Danfoss VLT Automation Drive FC 300 Operating Instructions Manual page 81

®
VLT Automation Drive FC 300
Operating Instructions High Power
3-02 Minimum Reference
Range:
*
0.000 Unit [-100000.000 - par.
3-03]
3-03 Maximum Reference
Range:
*
[Par. 3-02 - 100000.000] Enter the Maximum Reference. The Maximum Reference is the highest value obtainable by summing all refer-
1500.000
3-41 Ramp 1 Ramp Up Time
Range:
*
s [0.01 - 3600.00 s]
3-42 Ramp 1 Ramp Down Time
Range:
Size related [0.01 - 3600.00 s]
Function:
Minimum reference
The is the minimum value obtained by the sum of all references.
Min - Max
active if [0] is set in par. 3-00.
Function:
ences.
The Maximum Reference unit matches:
• The choice of configuration in par. 1-00
que
[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 rated motor speed n
a ramp-up 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 acc s
× n
M
Par
. 3 − 41 =
Δ
Function:
Enter the ramp-down time, i.e. the deceleration time from the rated motor speed n
Choose a ramp-down time such that no over-voltage arises in the inverter due to regenerative operation of the
motor, and such 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 acc s x n M
Par . 3 − 42 =
MG.33.U2.02 - VLT ® is a registered Danfoss trademark
Configuration Mode
: for
Reference/Feedback Unit .
( par . 1 − 25 ) RPM
, N
ref RPM
( par . 1 − 25 ) RPM
N
,
ref RPM
Δ
4. How to Programme
Minimum reference
is only
Speed closed loop Tor-
[1], RPM; for
(par. 1-25). Choose
M,N
(par. 1-25) to 0 RPM.
M,N
4
81