60
6
DETAILED PARAMETER DESCRIPTION
Figure 6.2 -
Deceleration Ramp
Used in pump applications. See item 6.3.19.It defines the
time of the deceleration ramp that will be effected at the
level set at P03 up to the thyristor locking voltage which
is approx. 30% of the U
N
. As shown in Figure 6.2, this
ramp is mainly beneficial for pump application.
NOTE!
This function is used to lengthen the normal load deceleration
time and not to force a time shorter than that imposed by the load.
6.3.5 - P04-Time of the
deceleration
ramp
It sets the max.current value that will be supplied to the
motor (load) during the acceleration.
The current limitation is used for loads with high or
constant starting torque.
The current limitation must be set at a level that permits
the motor acceleration, otherwise the motor will not start.
6.3.6 - P11 - Current
Limitation
(%I
N
of the
switch)
NOTE!
1) If the full voltage is not reached at the end of the
acceleration ramp time (P02), the error E02 will be
displayed and the motor will be disabled.
2) The thermal thyristor protection, inclusive during the
current limitation, is carried through thermostats of the
Soft-Starter.
Factory
Standard
OFF
min.
Range
max.
shortest step
OFF, 150%I
N
1%
500%I
N
P11 -
Current limitation
Factory
Standard
OFF
min.
Range
max.
shortest step
OFF, 2s
1s
240s
P04 -
Time of the deceleration ramp
Pressing
Key
t (s)
