Residual Hazards - Lenze 9400 Instructions De Montage

3.2

Residual hazards

Protection of persons
Before working on the power supply module, check that all power terminals are
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deenergised, since ...
– depending on the device, power terminals L1, L2, L3, +UG, −UG, Rb1, Rb2, X109 and
X110 carry hazardous electrical voltages for up to 30 minutes after mains
disconnection.
Caution: With synchronous motors, self−discharge only starts after a possible
regenerative feedback operation has been completed!
Device protection
Connect/disconnect all pluggable terminals only in deenergised condition!
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Detach the power supply modules from the AC mains or from the axis modules only
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in deenergised condition!
The unit only functions properly when the 24 V supply is switched on!
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EDK94PNE245 DE/EN/FR/ES/IT 4.0
Safety instructions
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Residual hazards
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