Safety information
Lenze low-voltage machinery
3
l
EDK82EVXXX EN 2.0
1.2
General safety and application notes for Lenze motors
(in conformity with the Low-Voltage Directive 73/23/EEC)
General
Low-voltage machines have dangerous, live and rotating parts as well as possibly hot surfaces. All
operations serving transport, connection, commissioning and maintenance are to be carried out by
skilled, responsible technical personnel (observe EN 50110-1 (VDE 0105-100); IEC 60364).
Improper handling can cause severe injuries or damages.
Synchronous machines induce voltages at open terminals during operation.
Application as directed
These low-voltage machines are intended for industrial and commercial installations. They comply
with the harmonized standards of the series EN 60034 (VDE O53O). Their use in hazardous areas
is prohibited unless they are expressly intended for such use (follow additional instructions).
Degrees of protection
≤
IP23 are only intended for outdoor use when applying special protective
measures. Air-cooled designs are rated for ambient temperatures from -15 °C and -10
°
C to +40
°
C
and altitudes
≤
1000 m a.m.s.l., from -20 °C to +40 °C without brake or with spring-operated brake,
with non-ventilated or with integral fan, from -15 °C to +40 °C with permanent magnet brake and
from -10 °C to +40 °C with separate fan. Check indications on the nameplate and if other, observe
them. The conditions on site must correspond to all nameplate data.
Low-voltage machines are components for the 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 a.o. EN 60204-1).
The integrated brakes cannot be used as safety brakes. It cannot be guaranteed that factors which
cannot be influenced, such as oil ingression because of a defective A-side shaft seal, do not cause
a torque reduction.
Transport, storage
The forwarder must be informed directly after receipt of the goods about all damages 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
≤
0.2 mm/s) environment
(damage while being stored). Measure the insulation resistance before commissioning. If the values
are
≤
1 k
Ω
per volt of rated voltage, dry the winding.
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.
