CAUTION
Burns due to high surface temperatures
The motor reactors can become very hot. You can get seriously burnt when touching the
surface.
• Mount the motor reactors so that contact is not possible. If this is not possible, attach clearly
visible and understandable warning notices at hazardous positions.
• To prevent adjacent components from being damaged as a result of the temperature,
maintain the specied clearance around all sides of the motor reactors.
10.2.3 Using the motor reactor
Overview
Motor reactors reduce the magnitude of capacitive discharge currents which means that longer
motor cables can be used. At the same time, the stress on the motor windings caused by rates
of voltage rise (dv/dt) is also diminished.
Requirements
NOTICE
Overheating of the motor reactor when the maximum pulse frequency is exceeded
The motor reactor can overheat and therefore be damaged if the pulse frequency is exceeded.
• When using a motor reactor, the pulse frequency of the converter must not exceed 4 k Hz.
Note the following requirements:
• Maximum ambient temperature: 40 °C without reduction of the output current, 55 °C with
reduction of the output current
• Maximum pulse frequency: 4kHz
• Maximum output frequency: 120Hz
• Maximum current limit: 2xrated current (I
rated
)
• Operating modes: Vector control, U/f control und servo control
1)
• Maximum cable length of the connection cables between the Motor Module and a motor
reactor: 5m
2)
1)
The reactor for the servo control must be parameterized during commissioning.
2)
Keep the connecting cables between the Motor Module and the motor reactor as short as
possible.
Motor-side power components
10.2Motor reactors
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA 257
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