Commissioning
Setting of mains data
Selecting the function of the charging current limitation
98
EDBCSXS064 EN 4.0
6.5
Setting of mains data
The GDC includes the parameters and codes to be set in the parameter menu under
Short setup
Mains
:
ECSXA301
Fig. 6−1
GDC view: Short setup of the mains data
6.5.1
Selecting the function of the charging current limitation
The ECS axis modules are provided with a charging current limitation by means of charge
resistors and charge relays. In the Lenze setting the charging current limitation is activated
(C0175 = 1).
At mains connection the charge relay remains open for a while so that the charging current
of the DC bus is limited by the charging resistors. When a certain voltage level has been
reached, the charging resistors are short circuited by switching on (closing) the charge
relay contacts.
Stop!
ƒ
In case of a mains supply via a power supply module
ECSxE
the entire DC
bus is charged in a controlled way by a semiconductor circuit (thyristor) in
the power supply module. Therefore, set
C0175 = 3
for the axis modules
(charging current limitation inactive, charging resistor short−circuited).
If the Lenze setting has been loaded via C0002, C0175 = 3 must be reset.
ƒ
Cyclic switching of the mains voltage at the power supply module can
overload and destroy the charging current limitations of the axis modules if
activated (C0175 = 1 or C0175 = 2).
For this reason, allow a break of at least three minutes between two starting
operations in case of cyclic mains switching over a longer period of time!
