
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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Summary of Contents for ACS 400
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