ABB ACS310, User Manual

Page: 216 / 376

216 Actual signals and parameters
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 Hz
1…250 Hz Drive output frequency at 100% load 1 = 1 Hz
3010 STALL
FUNCTION
Selects how the drive reacts to a motor stall condition. The
protection wakes up if the drive has operated in a stall
region (see the figure below) longer than the time set by
parameter 3012 STALL TIME .
NOT SEL
NOT SEL Protection is inactive. 0
FAULT The drive trips on fault MOTOR STALL and the motor
coasts to stop.
1
ALARM The drive generates alarm MOTOR STALL . 2
3011 STALL
FREQUENCY
Defines the frequency limit for the stall function. See
parameter 3010 STALL FUNCTION .
20.0 Hz
All parameters
No.
Name/Value Description Def/FbEq
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
∞
User defined limit =
2003 MAX CURRENT
Current (A)
0.95
·
User defined limit
Stall region
Par. 3011
f
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