General - Siemens SINAMICS G120P Operating Instructions Manual

General

Description
Output reactors reduce the voltage load on the motor windings by reducing the voltage
gradients at the motor terminals that occur during converter operation. At the same time, the
capacitive charge/discharge currents that occur at the converter output when long motor
cables are used are reduced.
Fire hazard due to overheating because of inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating with a risk for personnel through
smoke development and fire. This can also result in increased failures and reduced service
lives of braking resistors.
• Maintain 100 mm ventilation clearances above and to the side of the component.
Risk of burns due to high surface temperature of the output reactor
The surface temperature of the output reactors can exceed 80 °C. You can get seriously
burnt when touching the surface.
• Mount the output reactors so that they cannot be touched. If this is not possible, attach a
NOTICE
Damage to the Power Module by using components that have not been released
When using components that have not been released, damage or malfunctions can occur
at the devices or the system itself.
• Only use output reactors that SIEMENS has approved for operation with SINAMICS.
NOTICE
Damage to the output reactor if the maximum pulse frequency is exceeded
The maximum permissible pulse frequency when output reactors are used is 2.5 kHz or 4
kHz. The output reactors can be damaged if the output frequency is exceeded.
• When using the output reactor, operate the Power Module with a maximum pulse
Output reactors
Operating Instructions, 05/2017, A5E32846921B AE
WARNING
CAUTION
clearly visible and understandable warning notice at hazardous positions.
frequency of 2.5 kHz or 4 kHz.
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