
238 Parameters
Percentage scaled signal of parameter
.
0.00%
-100.00…100.00%
Percentage.
100 = 1%
41
Settings for the internal brake chopper.
Displays the estimated temperature of the brake
resistor, or how close the brake resistor is to being
too hot.
The value is given in percent where 100% is the
eventual temperature the resistor would reach when
loaded long enough with its rated maximum load
capacity (
).
The temperature calculation is based on the values of
parameters
, and on the
assumption that the resistor is installed as instructed
by the manufacturer (ie, it cools down as expected).
-
0.0…120.0%
Estimated brake resistor temperature.
1 = 1%
Enables brake chopper control and selects the brake
resistor overload protection method (calculation or
measurement).
Note:
Before enabling brake chopper control, ensure
that
• a brake resistor is connected
• overvoltage control is switched off (parameter
)
• the supply voltage range (parameter
) has been selected correctly.
Disabled
Disabled
Brake chopper control disabled.
0
Enabled with thermal
model
Brake chopper control enabled with the brake resistor
protection based on the thermal model. If you select
this, you must also specify the values needed by the
model, ie. parameters
and
. See the resistor manufacturer data sheet.
1
Enabled without
thermal model
Brake chopper control enabled without resistor
overload protection based on the thermal model if
the resistor is equipped with a thermal switch that is
wired to open the main contactor of the drive if the
resistor overheats.
For more information, see chapter
Resistor
braking
in
the hardware manual.
2
No.
Name/Value
Description
Default
FbEq 16
Summary of Contents for ACS280
Page 1: ... ABB MACHINERY DRIVES ACS280 coldplate drives Firmware manual ...
Page 4: ......
Page 10: ...10 ...
Page 16: ...16 Control panel ...
Page 20: ...20 Start up ID run and use ...
Page 24: ...24 Default control connection ...
Page 88: ...88 Program features ...
Page 298: ...298 Parameters ...