Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
Settings for the internal brake chopper.Brake chopper43
See also section DC voltage control (page 102).
- / real32Displays the estimated temperature of the brake
resistor, or how close the brake resistor is to being too
hot.
Brake resistor
temperature
43.1
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 (43.9
Brake resistor max cont power).
The temperature calculation is based on the values of
parameters 43.08, 43.09 and 43.10, and on the
assumption that the resistor is installed as instructed
by the manufacturer (ie. it cools down as expected).
This parameter is read-only.
1 = 1 % / 1000 = 1 %Estimated brake resistor temperature.0.0 ... 120.0 %
Disabled / uint16Enables brake chopper control and selects the brake
resistor overload protection method (calculation or
measurement).
Brake chopper
function
43.6
Note: Before enabling brake chopper control, ensure
that
• A brake resistor is connected,
• Overvoltage control is switched off (parameter
30.30 Overvoltage control), and
• The supply voltage range (parameter 95.1 Supply
voltage) has been selected correctly.
0Brake chopper control disabled.Disabled
1Brake chopper control enabled with resistor overload
protection based on a thermal model. If you select this,
Enabled with
thermal model
you must also specify the values needed by the model,
ie. parameters 43.08…43.12. See the resistor data
sheet.
2Brake chopper control enabled without resistor
overload protection based on a thermal model. This
Enabled without
thermal model
setting can be used, for example, if the resistor is
equipped with a thermal circuit breaker that is wired
to stop the drive if the resistor overheats.
Before using this setting, ensure that overvoltage
control is switched off (parameter 30.30 Overvoltage
control)
Parameters 359
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