Lenze ECSxK series - Manual (Page 23)

Electrical installation
Important notes
Protection of persons
5

23 EDBCSXKXXX EN 1.0
5 Electrical installation
5.1 Important notes

Stop!
The capacitor module contains electrostatically sensitive components.
Prior to assembly and service operations, the personnel must be free of
electrostatic charge.
5.1.1 Protection of persons

Danger!
ƒ
Before working on the capacitor module, check that no voltage is applied to
the power terminals,
– because the power terminals +UG and -UG remain live for at least three
minutes after mains switch-off.
– because the power terminals +UG and -UG remain live when the motor is
stopped.
ƒ If an error occurs (short circuit to frame or earth fault), a DC residual current
may occur in the PE conductor. If an earth-leakage circuit breaker (residual
current device) is used to protect against direct or indirect contact, only the
use of an earth-leakage circuit breaker of type B is permissible on the
current supply side. If not, another protective measure is to be used, as for
example, separation from the environment by double or reinforced
insulation or separation from the mains by using a transformer.
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