Schneider Electric Altivar 12 Manuale Utente
54
BBV28581 05/2010
Code
Name/Description
Adjustment range
Factory setting
I_O-
Input Output menu
(continued)
tOL
M Application Overload time delay
0 to 100 s
0 s
This function can be used to stop the motor in the event of an application overload. This is not a motor or
drive thermal overload. If the motor current exceeds the
drive thermal overload. If the motor current exceeds the
LOC
, an
tOL
is activated. Once this time delay
tOL
has elapsed, if the current
is still greater than the overload threshold
LOC
-10%, the drive will stop running and display
Process overload.
Overload detection is only active when the system is in steady state (speed reference reached).
A value of 0 will disable application overload detection.
Overload detection is only active when the system is in steady state (speed reference reached).
A value of 0 will disable application overload detection.
FtO
T
M Time delay before automatic start for the
overload fault
overload fault
0 to 6 min
0 min
If Atr = YES the drive restarts automatically after an overload fault
OLC
once this time delay has elapsed.
Minimum time permitted between an overload being detected and any automatic restart.
In order for an automatic restart to be possible, the value of
In order for an automatic restart to be possible, the value of
Maximum restart time
tAr
page
must
exceed that of this parameter by at least one minute.
Visible only if
Application Overload time delay
tOL
above is not set to
nO
.
LOC
T
M Application Overload threshold
70 to 150% of nCr
90% of of nCr
Visible only if
Application Overload time delay
tOL
above is not set to
0
.
This parameter is used to detect an "application overload".
LOC
can be adjusted between 70 and 150%
of the nominal drive current. This is not a motor or drive thermal overload.
T
Parameter that can be modified during operation or when stopped.
I-O-
drC-
CtL-
FUN-
FLt-
COM-
LOC
Motor current
LOC
-10%
Drive stop
on
OLC
detected fault
tOL
<
tOL
(hysteresis)
t