Siemens SINAMICS PERFECT HARMONY GH150 6SL3826, Operating Instructions Manual

Page: 93 / 136

Note
Siemens offers its customers support in the form of a service contract. For further details,
contact your regional office or sales office.
Note
Inform the manufacturer about each maintenance job that has been carried out and about each
spare part replacement for the purposes of a reliability analysis.
9.2 Grounding the system
WARNING
Electric shock even after shutdown
High voltages can still be present even after shutdown. Touching the device can result in death
or serious injury.
● Only work on the power unit if it has been sufficiently grounded. Before touching the device,
carefully ensure that the power unit is in a no-voltage condition:
● Always observe the five safety rules (Page 13) when carrying out any work on the device.
9.3 Opening the device
9.3.1 Door interlock options
The drive is equipped with a door interlocking system. Depending on the design, this is a
mechanical door interlock system or optionally a safety locking system.
The doors for the Control Module can be opened for monitoring purposes during operation.
WARNING
Danger to life although the door interlocking has been released
Even when the door interlocking is released, high voltages can still be present at the auxiliary
circuits (fans, anti-condensation heating, closed-loop control, etc.). Touching live components
can result in death or serious injury.
● Ensure that work is only carried out by qualified personnel.
● The five safety rules must be observed.
Maintenance
9.3 Opening the device
SINAMICS PERFECT HARMONY GH150 6SL3826
Operating Instructions 05/2020
93