Attaching the grounding spider
① Upper fixed spheres
② Lower fixed sphere
Figure 9-1 Schematic diagram: Attaching the grounding spider
9.3 Opening the device
The drive is equipped with a door interlocking system. Depending on the design, this is an
electromechanical door interlocking 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.
The doors cannot be opened until the following conditions are fulfilled:
● The converter is ready to switch on, or in the "switching on inhibited" state, no ON command
is active.
● The circuit breaker is open (feedback signal, "circuit-breaker OPEN").
Maintenance
9.3 Opening the device
SINAMICS PERFECT HARMONY GH150 6SL38253AE412AA1-Z
106 Operating Instructions Rev.201910281231 EXAMPLE
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