Lenze ECSxK series - Manual (Page 24)

Electrical installation
Important notes
Device protection
5

24 EDBCSXKXXX EN 1.0
5.1.2 Device protection

Stop!
ƒ All pluggable connection terminals must only be connected or disconnected
when no voltage is applied.
ƒ The power terminals +UG, -UG and PE are not protected against polarity
reversal.
– When wiring, observe the polarity of the power terminals!
ƒ The power may only be converted if the power supply module in the power
system is ready for operation and the charging current limitation is bridged.
Otherwise the charging current limitation can be destroyed.
ƒ
If the charging current limitation is active, a cyclic switching of the mains
voltage at the power supply module can overload and destroy the capacitor.
Therefore, at least three minutes have to pass between two starting
operations in case of cyclic mains switching over a longer period of time!
5.1.3 Electrical isolation
Bridging of the charging current
limitation DC bus
Double insulation
X26 X23/+UG, -UG
Fig.5-1 Electrical isolation
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