ABB ACS 400 - Page 108

ACS 400 User’s Manual 97
Figure 37 Thermal protection trip times when parameters 3005 MOT THERM TIME, 3006 MOT LOAD
CURVE and 3007 ZERO SPEED LOAD have default values.
3015 UNDERLOAD CURVE
This parameter provides five selectable curves shown in Figure 38. If the load drops below the set curve for
longer than the time set by parameter 3014, the underload protection is activated. Curves 1...3 reach
maximum at the motor rated frequency set by parameter 9907
MOTOR NOM FREQ.
3017 GROUND FAULT
This parameter defines operation in case of ground fault is detected in the motor or in the motor cable.
1 =
FAULT
A fault indication is displayed and the ACS 400 coasts to stop.
2 =
NO
The fault indicator is suppressed and the ACS 400 continues operation normally.
3022 AI1 FLT LIMIT
Fault level for analog input 1 supervision.
See parameter 3001
AI<MIN FUNCTION.
3023 AI2 FLT LIMIT
Fault level for analog input 2 supervision.
See parameter 3001
AI<MIN FUNCTION.
Code Description
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