Select - ABB ACS150 User Manual

Parameters in the Long Parameter mode
Index Name/Selection
3008 ZERO SPEED LOAD
25....150%
3009 BREAK POINT FREQ
1...250 Hz
3010 STALL FUNCTION
0 = NOT SEL
1 = FAULT
2 = ALARM
3011 STALL FREQUENCY
0.5...50.0 Hz
Description
Defines the load curve together with parameters
and 3009 BREAK POINT FREQ.
Allowed continuous motor load at zero speed in percent of the nominal motor
current
Defines the load curve together with parameters
and 3008 ZERO SPEED LOAD.
Example: Thermal protection trip times when parameters
default values.
I
I
f
I /I
O N
f
3.5
A = trip time
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.2
Drive output frequency at 100% load
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
Current (A)
0.95 · par 2003 MAX CURRENT
Protection is inactive.
The drive trips on fault MOTOR STALL (code: F0012) and the motor coast to
a stop.
The drive generates alarm MOTOR STALL (code: A2012).
Defines the frequency limit for the stall function. See parameter
FUNCTION.
Frequency
3007
3007
= output current
O
= nominal motor current
N
= output frequency
O
= break point frequency
BRK
0.4 0.6 0.8 1.0
3012 STALL TIME.
Stall region
Def
MOT LOAD CURVE 70
MOT LOAD CURVE 35
3006...3008 have
A
60 s
90 s
180 s 180 s
300 s
600 s
∞
f /f
O BRK
1.2
0 = NOT SEL
f
Par. 3011
3010 STALL 20
Actual signals and parameters
93