Safety instructions
Safety instructions for low−voltage machinery
2
l
10
BA 13.0008 − EN 2.1
3. Transport, storage
The forwarder must be informed directly after receipt of the goods about all damage or
deficiencies; if necessary, commissioning must be stopped. Tighten screwed−in ring bolts
before transport. They are designed for the weight of the low−voltage machine, do not
apply extra loads. If necessary, use suitable and adequately dimensioned means of
transport (e.g. rope guides).
Remove the shipping brace before commissioning. Reuse it for further transports. For
storage of low−voltage machines ensure a dry, dust−free and low−vibration (v rms
£
O.2mm/s) environment (damage while being stored). Measure the insulation resistance
before commissioning. If the values are
£
1k per volt of rated voltage, dry the winding.
4. Installation
Ensure an even surface, solid foot or flange mounting and exact alignment if a direct clutch
is connected. Avoid resonances with a rotational frequency and double mains frequency
which may be caused during installation. Turn rotor by hand, listen for unusual slipping
noises. Check the direction of rotation when the clutch is not active (observe section 5).
Use appropriate tools to mount or remove belt pulleys and clutches (heat generation!) and
cover them with a touch guard. Avoid excessive belt tensions (technical list).
If required, provide pipe connections. Mounting positions with shaft end at top must be
protected with a cover which avoids the ingression of foreign particles into the fan. Free
circulation of the cooling air must be ensured. The exhaust air − also of other machines next
to the drive system− must not be intaken again immediately.
5. Electrical connection
All operations must only be carried out by qualified and skilled personnel when the
low−voltage machine is at standstill and when the machine is de−energised and protected
against unintentional restart. This also applies to auxiliary circuits (e.g. anti−condensation
heating).
Check safe isolation from the supply!
Exceeding of the tolerances specified in EN 60034−1 (VDE 0530, part 1) − v 5%,
fre 2%, wave form, symmetry − leads to excessive temperatures and affects the
electromagnetic compatibility. Observe the indications on the nameplate and the diagram
in the terminal box.
The connection must ensure a continuous and safe electrical supply (no loose wire ends);
use appropriate cable terminals. The connection to the PE conductor must be safe.
The clearance between shining, live parts and earth must not fall below: 8mm at Vr
£
550V,
10mm at Vr
£
725V, 14mm at Vr
£
1000V.
No foreign objects, dirt or moisture in the terminal box. All unused cable entries and the
box itself must be sealed against dust and water. For the trial run without output
elements, lock the key. Check brake operation before commissioning of low−voltage
machines with brakes.
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