Parameters 299
Defines the motor load curve together with parameters
and
.
The load curve is
used by the motor thermal protection model to estimate the
motor temperature.
When the parameter is set to 100%, the maximum load is
taken as the value of parameter
(higher loads heat up the motor). The load curve level should
be adjusted if the ambient temperature differs from the
nominal value set in
.
100%
50 … 150%
Maximum load for the motor load curve.
1 = 1%
Defines the motor load curve together with parameters
. Defines the
maximum motor load at zero speed of the load curve. A higher
value can be used if the motor has an external motor fan to
boost the cooling. See the motor manufacturer's
recommendations.
See parameter
70%
25…150%
Zero speed load for the motor load curve.
1 = 1%
Defines the motor load curve together with parameters
. Defines the
break point frequency of the load curve i.e. the point at which
the motor load curve begins to decrease from the value of
parameter
parameter
See parameter
45.00 Hz
1.00 … 500.00 Hz
Break point for the motor load curve.
See par.
No.
Name/Value
Description
Def
/
FbEq16
50
100
150
I/I
N
(%)
I
= Motor current
I
N
= Nominal motor current
Drive output
frequency
Summary of Contents for ACS880-x04
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Page 4: ......
Page 18: ...18 Using the control panel ...
Page 24: ...24 Control locations and operating modes ...
Page 112: ...112 Application macros ...
Page 496: ...496 Additional parameter data ...
Page 544: ...544 Fault tracing ...
Page 602: ...602 Control chain diagrams ...