Lenze ECSEExxx - Manual (Page 80)

Electrical installation
Drive system on the mains
Supply forms / electrical supply conditions
4

80 EDKCSEE040 DE/EN/FR 4.0
4.2.2 Supply forms / electrical supply conditions

Stop!
The power supply module may only be operated on balanced mains
supplies. Operation on mains supplies with earthed phase is not
permitted.
The ECSxE series power supply modules are provided with an automatic
detection of the mains voltage and adapt the brake chopper switch-on voltage.
Please observe the restrictions for the respective supply forms:
Mains Operation of the power supply
modules
Notes
With earthed
neutral (TT/TN
systems)
No restrictions Observe the rated data of the power
supply modules.
With isolated
neutral (IT
systems)
The ECSxExxxx4I IT variant can be
used if the power supply module is
protected in the event of an earth
fault in the mains supply:

by suitable equipment detecting
the earth fault.
 by disconnecting the power supply
module immediately from the
mains.
In the event of an earth fault at the
output of the power supply module,
safe operation cannot be guaranteed.

Note!
ƒ Mains voltage dips can be reduced by decreasing the max.
charging current limit (C0022).
ƒ Deactivate the charging current limitation (charge relay) of the
connected ECS axis modules with C0175 = 3.