ABB ACS350 Series, User Manual

Page: 198 / 314

Actual signals and parameters
198
3007 MOT LOAD CURVE Defines the load curve together with parameters 3008 ZERO SPEED LOAD
and 3009 BREAK POINT FREQ. If value is set to 100%, the maximum
allowed load is equal to parameter 9906 MOTOR NOM CURR value.
Load curve should be adjusted, if the ambient temperature differs from
nominal temperature.
100
50.…150% Allowed continuous motor load in percent of the nominal motor current 1 = 1%
3008 ZERO SPEED LOAD Defines the load curve together with parameters 3007 MOT LOAD CURVE
and 3009 BREAK POINT FREQ.
70
25.…150% Allowed continuous motor load at zero speed in percent of the nominal motor
current 1 = 1%
3009 BREAK POINT FREQ Defines the load curve together with parameters 3007 MOT LOAD CURVE
and 3008 ZERO SPEED LOAD.
Example: Thermal protection trip times when parameters 3006 … 3008 have
default values.
35
1…250 Hz Drive output frequency at 100% load 1 = 1 Hz
Parameters – complete descriptions
Index Name/Selection Description Def, FbEq
f
150
100
50
Par. 3009
I = output current
I
N
= nominal motor current
I / I
N
Par. 3008
Par. 3007
60 s
3.5
I
O
= Output current
I
N
= Nominal motor current
f
O
= Output frequency
f
BRK
= Break point frequency
A = Trip time
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.2 0.4 0.8 1.0 1.2
I
O
/ I
N
f
O
/ f
BRK
90 s
180 s
300 s
600 s
0.6
180 s
A
∞