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2 residual hazards, Residual hazards, Safety instructions – Lenze E94APNE User Manual

Page 33

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Safety instructions

Residual hazards

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EDK94PNE36 DE/EN/FR/ES/IT 3.1

2.2

Residual hazards

Protection of persons

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Before working on the power supply module, check that all power terminals are
deenergised

– because the power terminals L1, L2, L3, +UG, −UG, Rb1, Rb2, X109 and X110 carry

hazardous voltages for at least 3 minutes after mains disconnection.

– because the power terminals carry hazardous voltages even when only the mains

voltage is applied.

Device protection

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Connect/disconnect all pluggable terminals only in deenergised condition!

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Detach the power supply modules from their installation backplanes only in
deenergised condition!

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The unit only functions properly when the 24 V supply is switched on!