NORD Drivesystems BU0060 - Manual (Page 33)

2 Modules
BU 0060 GB-4112 33
2.3.3 Installation of the SK TU2 technology unit
WARNING Electric shock
Modules must not be inserted or removed unless the device is free of voltage. The slots may only be used for
the intended modules. Installation remote from the frequency inverter is not possible. It must be connected
directly to the frequency inverter.
Failure to comply with this may result in an electric shock, which my cause serious injury and the destruction of
the frequency inverter and the module.
Installing the technology unit
1. Switch off the mains voltage, observe
the waiting period.
2. Unscrew the 6 fastening screws of the
blind plate land remove the blind plate
(Fig.1).
3. Attach the PE connection on the inside
of the technology unit which is being
installed (Fig. 2). Fit the seal together
with the technology unit on the surface
of the frequency inverter. Ensure that
the connector strip makes full contact.
4. Lightly tighten all 6 fastening screws.
5. Now tighten the 6 fastening screws in
the specified sequence from 1 to 6 (see
Fig. 1) and with the torque stated in the
table.
Screw 4 Screw 3
Screw 2 Screw 1
Screw 6 Screw 5
Fig. 1
Fig. 2
Frequency inverter size Screw size Tightening torque
Size 1
M4 x 8 1.5Nm ± 20%
Size 2
NOTICE Earthing / Grounding
Note the earthing cable!
Make sure the earthing line is plugged into the plate of the standard device and each technology unit. This cable
must be connected when installing the technology unit to ensure it is fully earthed. Operation is not permitted if
there is no secure PE connection to the frequency inverter and to the technology unit, beacause frequency
inverter and technology unit could be destroyed!