Danfoss VLT 5000 Series Operating Instructions

VLT
®
5000 Series
Description of choice:
Select the desired ramp type, depending on
requirements concerning acceleration/deceleration.
The ramp is recalculated if the reference is
changed during ramping, resulting in an increase
of the ramping time.
Selection S
2
filter [4] is not recalculated if the
reference is changed during ramping.
207 Ramp-up time 1
(RAMPUPTIME1)
Value:
0.05 - 3600 sec.
✭ depends on unit
Function:
The ramp-up time is the acceleration time from 0 Hz
to the rated motor frequency f
M,N
(parameter 104) or
the rated motor speed n
M,N
(if Speed control, closed
loop has been selected in parameter 100). This
presupposes that the output current does not reach
the torque limit (to be set in parameter 221).
Description of choice:
Program the desired ramp-up time.
208 Ramp-down time 1
(RAMPDOWNTIME1)
Value:
0.05 - 3600 sec.
✭ depends on unit
Function:
The ramp-down time is the deceleration timefrom the
rated motor frequency f
M,N
(parameter 104) to 0 Hz or
from the rated motor speed n
M,N
, provided there is
no over-voltage in the inverter because of regenerative
operation of the motor, or if the generated current
reaches the torque limit (to be set in parameter 222).
Description of choice:
Program the desired ramp-down time.
209 Ramp-up time 2
(RAMPUPTIME2)
Value:
0.05 - 3600 sec.
✭ depends on unit
Function:
See description of parameter 207.
Description of choice:
Program the desired ramp-up time.
Switching from ramp 1 to ramp 2 is effected via a signal
on digital input terminal 16, 17, 29, 32 or 33.
210 Ramp-down time 2
(RAMPDOWNTIME2)
Value:
0.05 - 3600 sec.
✭ depends on unit
Function:
See description of parameter 208.
Description of choice:
Program the desired ramp-down time.
Switching from ramp 1 to ramp 2 is effected via a signal
on digital input terminal 16, 17, 29, 32 or 33.
211 Jog ramp time (JOG RAMP TIME)
Value:
0.05 - 3600 sec.
✭ depends on unit
Function:
The jog ramp time is the acceleration/deceleration time
from 0 Hz to the rated motor frequency f
M,N
(parameter
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.51.A9.02 - VLT is a registered Danfoss trademark
116

Danfoss VLT 5000 Series Specifications

General

Brand	Danfoss
Model	VLT 5000 Series
Category	DC Drives
Language	English