ABB ACS350 User Manual page 199

Parameters – complete descriptions
Index Name/Selection
3010 STALL FUNCTION
NOT SEL
FAULT
ALARM
3011 STALL FREQUENCY
0.5...50.0 Hz
3012 STALL TIME
10...400 s
3013 UNDERLOAD FUNC
NOT SEL
FAULT
ALARM
3014 UNDERLOAD TIME
10...400 s
Description
Selects how the drive reacts to a motor stall condition. The protection wakes
up if the drive has operated in a stall region (see figure below) longer than the
time set by parameter 3012
With vector control
user defined limit =
2017 MAX TORQUE 1 /
2018 MAX TORQUE 2 /
(applies for positive and
negative torques)
0.95 · user defined limit
With scalar control user
defined limit = 2003 MAX
CURRENT
The control mode is selected by parameter
Protection is inactive.
The drive trips on fault MOTOR STALL and the motor coast to a stop.
The drive generates alarm MOTOR STALL.
Defines the frequency limit for the stall function. See parameter
FUNCTION.
Frequency
Defines the time for the stall function. See parameter
FUNCTION.
Time
Selects how the drive reacts to underload. The protection wakes up if:
- the motor torque falls below the curve selected by parameter
UNDERLOAD CURVE,
- output frequency is higher than 10% of the nominal motor frequency and
- the above conditions have been valid longer than the time set by parameter
3014 UNDERLOAD TIME.
Protection is inactive.
The drive trips on fault UNDERLOAD and the motor coasts to a stop.
Note: Set parameter value to FAULT only after the drive ID run is performed!
If FAULT is selected, the drive may generate an UNDERLOAD fault during ID
run.
The drive generates alarm UNDERLOAD.
Defines the time limit for the underload function. See parameter
UNDERLOAD FUNC.
Time limit
STALL TIME.
Torque (%) /
Current (A)
9904 MOTOR CTRL MODE.
3010
Def, FbEq
NOT SEL
Stall region
f
Par. 3011
0
1
2
3010 STALL 20
1 = 0.1 Hz
STALL 20
1 = 1 s
NOT SEL
3015
0
1
2
3013 20
1 = 1 s
Actual signals and parameters
199