Schneider Electric Altivar 12 사용자 설명서

54

BBV28581  05/2010

I_O-

(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 

 

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.

FtO

T

M Time delay before automatic start for the 
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 

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