Danfoss VLT FCD 311 Design Manual page 68

207 Ramp-up time 1
207
(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
Motor frequency, f ). It is assumed that the output
M,N
current will not reach the current limit (set in parame-
ter 221 Current limit I ).
LIM
Description of choice:
Set the required ramp-up time.
208 Ramp-down time 1 208
(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
frequency, f ) to 0 Hz, provided no overvoltage
M,N
arises in the inverter because of generating opera-
tion of the motor.
= factory setting. () = display text [] = value for use in communication via serial communication port
68
3.00 sec
(parameter 104
M,N
3.00 sec
(parameter 104 Motor
M,N
®
VLT FCD Series
Description of choice:
Set the required ramp-down time.
209 Ramp-up time 2
209
(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
210
(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.
211 Jog ramp time
211
(JOG RAMP TIME)
Value:
0.02 - 3600.00 sec.
Function:
The jog ramp time is the acceleration/deceleration
time from 0 Hz to the rated motor frequency f
(parameter 104 Motor frequency, f
that the output current will not reach the current limit
(set in parameter 221 Current limit I
MG.04.A1.02 - VLT is a registered Danfoss trade mark
3.00 sec
3.00 sec
3.00 sec
M,N
). It is assumed
M,N
).
LIM