Lenze 8400 protec Manual - Manual (Page 30)

Product description
Concepts for the mains connection
Concepts for the connection of individual axes
3
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30 EDS84DPS424 EN 5.0
3.6 Concepts for the mains connection
8400 protec controllers support the implementation of various concepts for the mains
connection. Here, a distinction is drawn between wiring using a:
ƒ Standard cable − commercially available cable
ƒ Hybrid cable − special cable for mains voltage and buffer/control voltage, including
shielding if required
The following must be observed when selecting the wiring:
ƒ Permissible back−up fuse: max. 32 A
ƒ Permissible current for plug contacts 24 V supply: max. 10 A
ƒ Select the cable cross−sections in compliance with applicable standards and
directives.
– Mains/PE: max. 6 mm 2
– 24 V supply: max. 2.5 mm 2
3.6.1 Concepts for the connection of individual axes
The following versions are possible according to device version (see type code for mains
connection system):
Standard cable
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The mains voltage is connected to the controller by means of a standard cable (plug X10).
The 24 V supply of the controller is generated inside the device (mains−operated supply).
After the mains voltage has been switched off, all device functions including the control
electronics are deactivated. The switch function of Ethernet fieldbuses is also inactive.
Hybrid cable with external 24 V buffer voltage
‚
The mains voltage and an external 24 V buffer voltage are fed using a hybrid cable (plug
X10). Depending on the state of the external 24 V supply, it is possible for the control
electronics to remain active even if the mains is switched off.
Standard cable with external 24 V buffer voltage
ƒ
Since the connector housings only allow for one cable access per Q4/2 connector, the
E84DxM... device version (loop−through technique) can be used to implement this concept
for connection.
Here, the mains voltage is connected to the controller by means of a standard cable (plug
X10). The external 24 V buffer voltage is connected by means of a standard cable (plug
X11). Depending on the state of the external 24 V supply, it is possible for the control
electronics to remain active even if the mains is switched off.
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Note!
This concept for connection implies that the mains voltage at plug X10 is also
applied at plug X11 at the same time.