NORD Drivesystems BU0070 - Manual (Page 11)

2 Modules
BU 0070 GB Subject to technical alterations 11
2.2.2 Installation of technology units in the SK 300E and SK 750E
The 6 cover plate screws must be removed to install the technology box. Note the earthing cable, which can be
plugged into the plate. Ensure this cable is connected when installing the technology box to guarantee complete
earthing. Maximum protection class IP66 is only guaranteed if the seal is used and the 6 screws are secured
correctly to create a tight seal.
Installation of a technology box separate to the frequency inverter is not possible. It must be installed or connected
directly on the inverter.
WARNING / NOTE
Installation must be carried out by qualified personnel only, paying particular attention to safety
and warning instructions.
Only install technology units when the device is voltage-free.
Installation of a technology box separate to the frequency inverter is not possible. It must be
connected directly to the frequency inverter.
The technology units must be installed as follows:
1. Switch off the mains voltage, observe the waiting period.
2. Remove the dummy cover by unscrewing the 6 hexagon socket screws.
3. Make sure that the plug-in connections are firmly in place and that the lid is sealed.
4. Insert the technology box and screw in place.
Earthing line
Make sure the earthing line is plugged into the plate of the standard device and each technology unit. This line
must be connected when installing the technology unit to ensure it is fully earthed.
2.2.3 Installing the FE (PE) connection
A flat plug is provided on the bottom of the technology box for connection to the FE (function earth) or PE. A
connection cable with appropriate components is already included in the frequency inverter and is connected to the
dummy cover in the standard design. This must be used to create the PE connection to the technology unit.
Fastening screws for
the technology unit
Earthing of the cover plate