Lenze 8200 motec Instructions De Montage page 77

1
Safety instructions
Three−phase AC machines
Installation
Ensure an even surface, solid foot or flange mounting and exact alignment
if a direct clutch is connected. Avoid resonances with the rotational
frequency and double mains frequency which may be caused during
assembly. 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. Impermissible belt tensions
must be avoided (technical list).
The machines are half−key balanced. The clutch must be half−key balanced,
too. The visible outstanding part of the key must be removed.
If required, provide pipe connections. Designs with shaft end at bottom must
be protected with a cover which prevents the ingression of foreign particles
into the fan. Free circulation of the cooling air must be ensured. The exhaust
air − also the exhaust air of other machines next to the drive system − must
not be taken in again immediately.
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−energized and protected against unintentional restart. This also applies
to auxiliary circuits (e.g. brake, encoder, separate fan).
Check safe isolation from the supply!
If the tolerances in EN 60034−1; IEC 34 (VDE 0530−1) − voltage ±5 %,
frequency ±2 %, wave form, symmetry − are exceeded, more heat will be
generated and the electromagnetic compatibility will be influenced.
Observe the indications on the nameplate, operating notes, and the
connection 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 plug−in connector must be bolt tightly (to stop).
The clearances between blank, live parts and earth must not fall below 8 mm
£ 550 V, 10 mm at V £ 725 V, 14 mm at V £ 1000 V.
at V
r r r
The terminal box must be clean and dry; foreign particles, dirt and moisture
disturb operation. 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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EDK82MV222 DE/EN/FR 8.0