ABB ACS550-01 User Manual page 82

82
Code Description
3007 MOT LOAD CURVE
Sets the maximum allowable operating load of the motor.
• When set to 100%, the maximum allowable load is equal to the value
of Start-up Data parameter 9906
• Adjust the load curve level if the ambient temperature differs from
nominal.
3008 ZERO SPEED LOAD
Sets the maximum allowable current at zero speed.
• Value is relative to 9906
3009 BREAK POINT FREQ
Sets the break point frequency for the motor load curve.
Example: Thermal protection trip times when parameters 3005
ZERO SPEED LOAD
I /I
O N
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.2
3010 STALL FUNCTION
This parameter defines the operation of the Stall function. This
protection is active if the drive operates in the stall region (see figure)
for the time defined by 3012
Group 20 by 2017
MAX TORQUE
the input.
COMM
0 = – Stall protection is not used.
NOT SEL
1 = – When the drive operates in the stall region for the time set
FAULT
by 3012
STALL TIME
• The drive coasts to stop.
• A fault indication is displayed.
2 = – When the drive operates in the stall region for the time
WARNING
set by 3012
STALL TIME
• A warning indication is displayed.
• The warning disappears when the drive is out of the stall region for
half the time set by parameter 3012
3011 STALL FREQUENCY
This parameter sets the frequency value for the Stall function. Refer to
Figure.
3012 STALL TIME
This parameter sets the time value for the Stall function.
Start-Up
MOTOR NOM CURRENT
.
MOTOR NOM CURR
have default values.
0.4 0.6 0.8 1.0
. The "User Limit" is defined in
STALL TIME
1, 2018
MAX TORQUE
:
:
STALL TIME
.
P 3007
P 3008
MOT THERM TIME
A
60 s
I = Output current
O
90 s
I = Nominal motor current
N
f = Output frequency
O
180 s 180 s
f = Break point frequency
BRK
A = Trip time
300 s
600 s
∞
f /f
O BRK
1.2
2, or the limit on
.
ACS550 User's Manual
Output current (%) relative
to 9906
MOTOR NOM CURR
150
100
50
P 3009
, 3006 and 3007
MOT LOAD CURVE
Torque
Stall region
95%
User
Limit
STALL FREQ HI
Frequency
f
3011