Actual signals and parameters 251
3007 MOT LOAD
CURVE
Defines the load curve together with parameters
With the default value 100%, motor overload protection is
functioning when the constant current exceeds 127% of the
parameter
value.
The default overloadability is at the same level as what
motor manufacturers typically allow below 30 °C (86 °F)
ambient temperature and below 1000 m (3300 ft) altitude.
When the ambient temperature exceeds 30 °C (86 °F) or
the installation altitude is over 1000 m (3300 ft), decrease
the parameter
value according to the motor
manufacturer’s recommendation.
Example:
If the constant protection level needs to be 115%
of the nominal motor current, set parameter
value to
91% (= 115/127·100%).
100%
50.…150%
Allowed continuous motor load relative to the nominal motor
current
1 = 1%
3008 ZERO SPEED
LOAD
Defines the load curve together with parameters
and
.
70%
25.…150%
Allowed continuous motor load at zero speed as a
percentage of the nominal motor current
1 = 1%
All parameters
No.
Name/Value
Description
Def/FbEq
100 =
127%
150
50
Par.
Par.
f
Output current relative (%) to
Summary of Contents for ACS355 series
Page 1: ...ABB machinery drives User s manual ACS355 drives ...
Page 4: ......
Page 16: ...16 ...
Page 32: ...32 Operation principle and hardware description ...
Page 58: ...58 Electrical installation ...
Page 74: ...74 Start up control with I O and ID run ...
Page 106: ...106 Control panels ...
Page 120: ...120 Application macros ...
Page 178: ...178 Program features ...
Page 338: ...338 Fieldbus control with embedded fieldbus ...
Page 368: ...368 Fault tracing ...
Page 404: ...404 Dimension drawings ...
Page 410: ...410 Appendix Resistor braking ...
Page 434: ...434 Appendix Permanent magnet synchronous motors PMSMs ...