Danfoss VLT DMS 300 Manual page 121

Function:
You can choose between a linear, a sine-shaped
2
and a sine -shaped ramp process.
Description of choice:
Select the required ramp type depending on
requirementsfor the acceleration/deceleration process.
207 Ramp-up time 1
(RAMP-UP TIME 1)
Value:
0.02 - 3600.00 sec
Function:
The ramp-up time is the acceleration time from 0
Hz to the rated motor frequency f
104 Motor frequency, f ). It is assumed that the
M,N
output current will not reach the current limit (set
in parameter 221 Current limit I
Description of choice:
Set the required ramp-up time.
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.90.F2.22 - VLT is a registered Danfoss trademark
3.00 sec
(parameter
M,N
).
LIM
Decentral Solutions
208 Ramp-down time 1
(RAMP DOWN TIME 1)
Value:
0.02 - 3600.00 sec
Function:
The ramp-down time is the deceleration time
from the rated motor frequency f
104 Motor frequency, f
M,N
no overvoltage arises in the inverter because of
generating operation of the motor.
Description of choice:
Set the required ramp-down time.
209 Ramp-up time 2
(RAMP UP TIME 2)
Value:
0.02 - 3600.00 sec.
Function:
See description of parameter 207 Ramp-up time 1.
Description of choice:
Set the required ramp-up time. Shift from ramp 1 to
ramp 2 by activating Ramp 2 via a digital input.
210 Ramp-down time 2
(RAMP DOWN TIME 2)
Value:
0.02 - 3600.00 sec.
Function:
See description of parameter 208 Ramp-down time 1.
Description of choice:
Set the required ramp-down time. Shift from ramp 1 to
ramp 2 by activating Ramp 2 via a digital input.
3.00 sec
(parameter
M,N
) to 0 Hz, provided
3.00 sec
3.00 sec
121