ABB ACS550 User Manual page 141

ACS550 User's Manual
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 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 3006
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 the
figure) for the time defined by 3012
defined in Group 20: LIMITS
2, or the limit on the
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 set
ALARM
by 3012
STALL TIME
• An alarm indication is displayed.
• The alarm 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
the figure.
3012 STALL TIME
This parameter sets the time value for the Stall function.
3017 EARTH FAULT
Defines the drive response if the drive detects a ground fault in the motor or motor cables. The drive monitors for
ground faults while the drive is running, and while the drive is not running. Also see parameter 3023
0 = – No drive response to ground faults.
DISABLE
1 = – Ground faults display fault 16 (
ENABLE
.
MOTOR NOM CURR
.
MOTOR NOM CURR
have default values.
0.4 0.6 0.8 1.0
. The "User Limit" is
STALL TIME
by 2017
MAX TORQUE
input.
COMM
:
:
STALL TIME
EARTH FAULT
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
1, 2018
MAX TORQUE
Torque/
Current
.
), and (if running) the drive coasts to stop.
Output current (%) relative
to 9906
MOTOR NOM CURR
150
100
50
P 3009
, 3007
MOT LOAD CURVE
Stall region
95%
User
limit
P 3011
Stall frequency
WIRING FAULT
Parameters
141
Frequency
and 3008
f
.