Lenze 13.7xx Motors-Geared motors - Manual (Page 14)

Safety instructions
Safety instructions for low−voltage machines
2
l
14 BA 13.0009 − EN 2.1
Application as directed
Low−voltage machines are intended for commercial installations. They comply with the
harmonised standards of the series EN 60034 (VDE 0530). Their use in potentially
explosive atmospheres is prohibited unless they are expressly intended for such use
(follow additional instructions).
Low−voltage machines are components for installation into machines as defined in the
Machinery Directive 98/37/EC. Commissioning is prohibited until the conformity of the
end product with this directive has been established (follow i. a. EN 60204−1).
Low−voltage machines with IP23 protection or less are only intended for outdoor use when
applying special protective features.
The integrated brakes must not be used as safety brakes. It cannot be ruled out that factors
which cannot be influenced, such as oil ingress due to a defective A−side shaft seal, cause
a brake torque reduction.
Transport, storage
Damage must be reported immediately to the forwarder upon receipt; if required,
commissioning must be excluded. Tighten screwed−in ring bolts before transport. They are
designed for the weight of the low−voltage machines, do not apply extra loads. If
necessary, use suitable and adequately dimensioned means of transport (e. g. rope
guides).
Remove transport locking devices before commissioning. Reuse them for further
transport. When storing low−voltage machines, ensure a dry, dust−free and low−vibration
(v
eff
£ 0.2 mm/s) environment (bearing damage while being stored).
Installation
Ensure an even surface, solid foot/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 by the assembly. Turn rotor by hand, listen for unusual slipping
noises. Check the direction of rotation when the clutch is not active (observe section
"Electrical connection").
Use appropriate means to mount or remove belt pulleys and clutches (heating) and cover
them with a touch guard. Avoid impermissible belt tensions.
The machines are half−key balanced. The clutch must be half−key balanced, too. The visible
jutting out 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 ingress 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 immediately.