ABB ACS 400 User Manual page 97

Code Description
3007 ZERO SPEED LOAD
This parameter defines the maximum allowable current at zero speed relative to 9906
Refer to Figure 46.
3008 BREAK POINT
Break point of motor load curve. Refer to Figure 46 for an example of a motor load curve. See Figure 48.
3009 STALL FUNCTION
This parameter defines the operation of the stall protection. The protection is activated if the output current
becomes too high compared to output frequency, refer to Figure 47.
0 =
NOT SEL
Stall protection is not used.
1 =
FAULT
When the protection is activated the ACS 400 coasts to stop. Fault indication is displayed.
2 =
WARNING
A warning indication is displayed. The indication disappears in half the time set by parameter 3012
.
TIME
Figure 47 Motor stall protection.
3010 STALL CURRENT
Current limit for stall protection. Refer to Figure 47.
3011 STALL FREQ HI
This parameter sets the frequency value for the stall function.
Refer to Figure 47.
3012 STALL TIME
This parameter sets the time value for the stall function.
3013 UNDERLOAD FUNCTION
Removal of motor load may indicate a process malfunction. The protection is activated if:
• The motor torque drops below the load curve selected by parameter 3015
• This condition has lasted longer than the time set by parameter 3014
• Output frequency is higher than 10 % of the nominal frequency of the motor and higher than 5 Hz.
0 =
NOT SEL
Underload protection is not used.
1 =
FAULT
When the protection is activated the ACS 400 coasts to stop. Fault indication is displayed.
2 =
WARNING
A warning indication is displayed.
3014 UNDERLOAD TIME
Time limit for underload protection.
ACS 400 User's Manual
I
OUT
3010
STALL CURRENT
Stall region
3011
STALL FREQ HI
MOTOR NOM CURR
Frequency
UNDERLOAD CURVE
.
UNDERLOAD TIME
.
STALL
.
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