Connectors X50…X53
R8i modules contain a power supply (BDPS) that provides 24 V DC for the circuit boards
of the module. The BDPS is powered internally from the DC link. An auxiliary voltage of
230 V AC (standard) or 115 V AC (option +G304) can optionally be fed to X50 (X50:4 and
X50:5) to power the BDPS even when the DC link is not live. The 24 V DC voltage provided
by the BDPS is available on X53, and can be used to power the BCU control unit of a single
R8i inverter module.
Note:
With an inverter unit consisting of parallel-connected R8i modules, it is strongly recommended
to use an external 24 V DC supply to power the BCU control unit.
If a direct-on-line fan (option +C188) is used, the user must connect the fan supply (400 V AC
50 Hz or 60 Hz) to the module control connector [X50.1]. If an internal heating element
(option +C183) is used, the user must connect the supply for the heating element to the
module control connector [X50.7].
If the Safe torque off (STO) function is used, STO OUT on the BCU control unit is wired to
X52 (STO IN); see the safe torque off function. X51 on the R8i module forwards the STO
signals to the X52 connector of the next module (if present).
If the Safe torque off function is not used, the “24V” inputs on X52 must be connected to
+24 V (X53, for example) on each inverter module. X51 is to be left unconnected.
Note:
As a factory standard, Safe torque off is disabled by a jumper connection between connectors
X52 and X53.
Connector X50
Not in use.9
115/230 V AC (50/60 Hz) input for optional heating element
(+C183). The cabinet builder must connect this when the
option is in use.
N8
L7
Not in use.6
115/230 V AC 50 Hz input for internal power supply (BDPS)
(115 V AC 60 Hz with option +G304). The cabinet builder
must connect this.
N5
L4
400 V AC (50/60 Hz) supply for optional DOL (direct-online)
cooling fan (option +C188). The cabinet builder must connect
this when the option is in use.
Note:
In modules without +C188, the DOL wiring is present but not
in use.
W3
V2
U1
34 Hardware description
To Next Page
Loading...
