Siemens SINAMICS PERFECT HARMONY GH150 Operating Instructions & Installation Instructions page 17

Danger to life as a result of high voltages at the capacitors and in the DC link
High voltages are still present at the capacitors of the power cell and at the DC link even after
the system has been shut down. Touching live parts can result in death or serious injury.
● A label on the drive specifies the discharge times of the DC link capacitors. Only open the
● Observe the five safety rules when performing any work.
Danger due to high auxiliary voltages
High auxiliary voltages are still present even after shutdown. Touching live parts can result in
death or serious injury.
● Observe the five safety rules when performing any work.
Danger due to hazardous arcing
Hazards caused by arcing can occur as result of the following factors, for example:
● The input currents are exceeded.
● Incorrectly dimensioned circuit breaker or transformers.
● Incorrectly connected cables or cables that have not been connected.
● Contamination and dirt.
● Tools that have been forgotten, e.g. when mounting and installing the equipment.
Arcing can result in death, serious injury or material damage.
● Make sure that the system is properly dimensioned and that the power cables are correctly
● Remove contamination and dirt.
● After installation and mounting, carefully check that no objects have been left in the device.
Burns caused by fire escaping from the pressure relief flaps
Fire can escape through the pressure relief flaps if arcing occurs. Persons who are on the roof
section of the drive can suffer severe burns. Objects that are on the roof section of the drive can
catch fire or be flung into the room. Death, serious injury or material damage can result.
● Never climb on the drive. Never place any objects on the roof section of the drive.
Danger due to live stationary parts, moving or rotating parts
Contact with the parts mentioned can result in death, serious physical injury or damage to
property.
● Observe the instructions regarding installation and operation.
● Always take protective measures before touching any components.
● Do not remove any covers.
SINAMICS PERFECT HARMONY GH150 6SL38253AE412AA1-Z
Operating Instructions Rev.201910281231 EXAMPLE
drive once these discharge times have elapsed.
connected. The maximum permissible input currents are listed in the "Technical
specifications".
Safety instructions
2.4 Safe handling
17