CHAPTER 2 – POWER ELECTRONICS AND CABINET FEATURES 40
Grounding the drive is only possible after the main
power supply has been disconnected and the DC
link has discharged. When the voltage is below 50 V
(DC), press the pushbutton
Grounding Switch
Unlocked
(2-10: 1) located on the control compart-
ment door (the pushbutton lights up) and - at the
same time - turn the grounding switch to the posi-
tion grounded (2-10: 2).
When the grounding switch is in position
grounded, the door safety switch of the AFE-INU
compartment will be released and the door can be
opened.
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