VLT® 5000 Crane
■ References & Limits
202 OUT SPEED HI LIM
Value:
0-5000 RPM
✭ 3000 RPM
Function:
In this parameter, a maximum motor speed can be
selected corresponding to the highest frequency
at which the motor is to run.
See also parameter 205.
Description of choice:
A value from 0 - 5000 RPM can be selected.
205 MAX. REFERENCE
Value:
0.001 - 10.000
✭ 3000
Function:
The Maximum reference gives the highest value that
can be assumed by the sum of all references.
207 RAMPUPTIME1
Value:
0.05 - 3600 sec.
✭ 0.85 sec.
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).
208 RAMPDOWNTIME1
Value:
0.05 - 3600 sec.
✭ 0.85 sec.
Function:
The ramp-down time is the deceleration time from the
rated motor frequency f
M,N
(parameter 104) to 0 Hz or
from the rated motor speed n
M,N
,providedthereis
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).
211 JOG RAMP TIME
Value:
0.05 - 3600 sec.
✭ 0.85 sec.
Function:
The jog ramp time is the acceleration/deceleration time
from 0 Hz to the rated motor frequency f
M,N
(parameter
104). It is assumed that the output current is not higher
than the torque limit (set in parameter 221).
NB!:
Note that the jog function is only available
when running in FC profile!
The jog ramp time starts if a jog signal is given
via the control panel, the digital inputs or the
serial communication port.
Description of choice:
Set the desired ramp time.
212 Q STOP RAMP TIME
Value:
0.05 - 3600 sec.
✭ 0.85 sec.
Function:
The ramp-down time is the deceleration time
from the rated motor frequency to 0 Hz, provided
no over- voltage arises in the inverter because
of generating operation of the motor or if the
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.50.N4.02 - VLT is a registered Danfoss trademark
58
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