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7.2.8
Motor heating
Operating principle
The "motor heating" starting mode heats up the motor. No startup takes place. The motor
heating remains switched on for as long as the control command "Motor CW" or "Motor
CCW" is present.
Assign your own set of parameters for the motor heating to enable you to switch quickly and
easily between the motor heating and the actual startup.
Application
● Used for drives outdoors to minimize condensation inside the motor.
Parameters
NOTICE
Damage to property through motor heating in continuous operation
The "motor heating" starting mode is not a continuous operating mode. The motor must be
equipped with a temperature sensor to ensure motor protection. The motor model with
integrated electronic motor overload protection is not suitable for this kind of operation.
Parameters
Motor heating power
SIRIUS 3RW55 soft starter
Manual, 08/2018, A5E35630887002A/RS-AB/002
Description
Set the parameter so that the motor is not damaged. 100 % motor
heating corresponds to a comparable motor current of about 30 % of
the rated motor current.
Factory setting: 20%
•
Setting range: 1 ... 100 %
•
Increment: 1%
•
Functions
7.2 Start-up
93
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