5.4.2 Maximum current reached,
Imax
When the output current has reached the maximum current limit
which is programmed
under
C022, the red LED on the keypad is
illuminated and the assigned output sends a message.
In
case
of overload, the output frequency is automatically reduced
(Vif
reduction)
to prevent a
further
rising of the motor current. You
tan
also use the maximum current limit,
e.g.
to accelerate the drive
at the set maximum current limit. The motor then generates a
constant
torque up to its rated frequency.
Code Name Parameter (Factory setting is printed in bold)
Acceptance
CO22 Imax-limit
I
marunit
ON-LINE
upto100A
(0.1 A)
as from 100 A
(1
Al
INFO:Adjustable
from 0.08 to 1 .O
.~nit
If
you set the chopper frequency to a fixed value of 12 or 16 kHz, the
current limit is reduced internally to a permissible value. For setting
the chopper frequencies see page 96.
5.4.3
Setpoint
reached,
RFG/O=I
As soon as the ramp generator of the main
setpoint
has reached
the setpoint, the assigned output is switched. If you want the output
to
switch
even before
reaching
the setpoint, enter a range
under
C241 where you want the
function
to be
active.
The thresholds are
the
setpoint
which is reduced and increased by the entered value.
Code
Name
Parameter (Factory setting is printed in bold)
Acceptance
C241
Window ramp 0.5 %
0.0 %
(0.1
%}
100.0 % ON-LINE
generator
output = input
5.4.4 Fault
indication
TRIP
A fault is indicated via the permanently assigned digital output
terminal 41 and
-
in factory setting
-
via the relay output.
If
you need
the output terminal 41 with reverse polarity, you have to use a freely
assignable output and set the polarity as required. Before, the relay
output must be assigned to another
function.
5.4.5 Ready, RDY
The
Status
“ready” is indicated approximately 0.5 seconds after
mains connection by the illuminated green LED on the keypad and
via the digital output terminal 44.
If you need the permanently assigned output terminal 44 with
inverted polarity you must use a freely assignable output and set
the polarity as required.
In
case
of a warning (see page 150) the
Signal
“ready” is cancelled
without the
controller
being inhibited.
5.4.6 Pulse inhibit, IMP
-
-
92
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