Siemens SINAMICS S120 Equipment Manual page 226

Line Modules
5.5 Active Line Modules Chassis-2
Fire due to inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating with a risk for personnel through
smoke development and fire. This can also result in more downtimes and reduced service
lives of Line Modules.
• Adhere to the ventilation clearances above and beside the Line Modules that are
Fire due to overheating when the total length of the power cables is exceeded
Overheating and a fire can result when the total length of the power cables is exceeded.
• Ensure that the total length of the power cables (motor feeder cables and DC link
Burns resulting from high surface temperatures
Depending on the ambient temperature, the temperature on the enclosure of the device can
exceed >60 °C. Contact with the surface can result in severe burns.
• Before starting to work on the device, check the temperature of the enclosure.
NOTICE
Material damage caused by loose power connections
Insufficient tightening torques or vibration can result in faulty electrical connections. This
can cause fire damage or malfunctions.
• Tighten all power connections with the specified tightening torques, e.g. line supply
• Check the tightening torques of all power connections at regular intervals and tighten
NOTICE
Damage to the devices when performing a voltage test as a result of connections that are
not disconnected
As part of routine tests, SINAMICS S components undergo a voltage test according to
EN 61800-5-1. Connected devices can be damaged.
• Disconnect or unplug all SINAMICS devices before the voltage test of the machine
224
WARNING
specified in the dimension drawings.
CAUTION
cables) does not exceed the values specified in the technical data.
CAUTION
connection, motor connection, DC link connections.
them when required. This applies in particular after transport.
equipment according to EN 60204-1, Section 18.4.
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9