Lenze ECSCExxx Power supply module - Manual (Page 39)

Electrical installation
Drive system on the mains
Supply forms / electrical supply conditions
5
l
39 EDBCSXE040 EN 7.0
5.2.2 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:
l by suitable equipment detecting the
earth fault.
l 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.