Danfoss VLT 2800 Series Operating Instructions Manual page 31

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
frequency, f ). It is assumed that the output current
M,N
will not reach the current limit (set in parameter 221
Current limit I ).
LIM
Description of choice:
Set the required ramp-up time.
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
M,N
quency, f ) to 0 Hz, provided no overvoltage arises
M,N
in the inverter because of generating operation of the
motor.
Description of choice:
Set the required ramp-down time.
= factory setting, () = display text, [] = value for use in communication via serial communication port
30
3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
(parameter 104 Motor
M,N
3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
(parameter 104 Motor fre-
®
VLT 2800 Series
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.
211 Jog ramp time
(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
rameter 104 Motor frequency, f
the output current will not reach the current limit (set in
parameter 221 Current limit I
®
MG.27.A2.02 - VLT is a registered Danfoss trademark
3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
(pa-
M,N
). It is assumed that
M,N
).
LIM