ABB ACS880-104

Parameters 435
Linear Overload limit is calculating by formula:
T
act
= T
set
* (I
lim
/ I
act
)
Where,
T
act
= 79.91 Overload trip count down
T
set
= 79.48 Overload delay time
I
lim
= 79.90 Overload actual limit
I
act
= 79.42 Overload supervision signal
Quadratic T
act
= T
set
* (I
lim
/ I
act
)
2
Where,
T
act
= 79.91 Overload trip count down
T
set
= 79.48 Overload delay time
I
lim
= 79.90 Overload actual limit
I
act
= 79.42 Overload supervision signal
79.48 Overload delay time Defines the time used as on-delay for the overload protection
function to react to the overload condition.
10.0
0.0...30000.0 s Overload delay in seconds. 1 = 1s
79.49 Overload event
reaction
Defines the response to the overload condition.
If the overload supervision signal is above active overload
limit in the defined delay time, then overload protection
function trigger the reaction defined in this parameter setting.
Warning
Not selected Overload event reaction is inactive.
Warning Overload condition triggers the drive event D208 Overload
warning. It will stay on as long as overload condition is
present. The warning will automatically disappear if overload
supervision signal stays below the overload limit for the time
defined in parameter 79.48 Overload delay time.
Warning with
shutdown
Overload condition triggers the drive event D208 Overload
warning and immediate stop command. Drive will stop
according to parameter 21.03 Stop mode setting.
Fault Overload condition triggers the drive event D101 Overload
fault which immediately trips the drive.
Recovery - Warning Overload condition triggers the overload recovery sequence.
In case recovery routine helps, the motor speed returns to
production speed. If not, drive generates the event D208
Overload warning. It will stay on as long as overload condition
is present. The warning will automatically disappear if
overload supervision signal stays below the overload limit for
the time defined in parameter 79.48 Overload delay time.
Recovery - Fault Overload condition triggers the overload recovery sequence.
In case recovery routine helps, motor speed returns to
production speed. If not, drive generates the event D101
Overload fault which immediately trips the drive.
79.51 Overload curve
point 1
Defines overload curve point 1 load limit active at
corresponding speed set in parameter 79.01 Load curve
speed point 1.
0.00
-30000.00...
30000.0 0
Overload curve point 1. 10 = 1
79.52 Overload curve
point 2
Defines overload curve point 2 load limit active at
corresponding speed set in parameter 79.02 Load curve
speed point 2.
0.00
-30000.00...
30000.0 0
Overload curve point 2. 10 = 1
No. Name/Value Description Def/FbEq16