Safety information
Lenze low-voltage machinery
2
l
EDKVF9333 EN 1.0
1.2 General safety and application notes for Lenze low -voltage
machinery
(in conformity with the Low-Voltage Directive 73/23/EEC)
1. General
Low-voltage machines have dangerous, l i ve and rotating parts as well as possibly hot surfaces. All operations serving transport, connection, commissioning and
maintenance are to be carriedoutby skilled, responsible technical p ersonnel (observe EN 50110-1 (VDE0105-100);IEC60364). Improperhandling can cause severe injuries
or damages.
Synchronous machines induce voltages at open terminals during operation.
2. Application as directed
These low-voltage machines are intended for industria l and commerci a l 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).
The enclosures ≤ IP23 are byno means intended for outdoor use. Air-cooled designsare ratedfor ambient temperaturesbetween -15 °C and-10 °Cand +40°C and altitudes
≤ 1000 m a.m.s.l., from -20 °C to +40 °C without brake or with spring-operated brake, with separate ventilation or self ventilation, 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 they are different, observe them. The conditions on site must
correspond to all nameplate da ta.
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 ruled out that factors which cannot be influenced, such as oil ingression because of a defective A-side
shaft seal, c ause a torque reduction.
3. 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 lo w-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 lo w-vibration
(v
rms
≤ 0.2 mm/s) environment (danger of bearing damage at rest). Measure the insulation resistance before commissioning. If the values are ≤ 1kΩ 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 the rotational frequency and double mains
frequency which may be c aused by the assembly. Turn rotor by hand, listen for unusual slipping noises. C heck the direction of rotation when the clutch isnot active (observe
section 5).
Use appropriate tools to mount or remove belt pul leys 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 visibly protruding part of the key must be removed.
If required, provide pipe connections. Mounting positions with shaft end at bottom must be protected with a cover which avoids the ingression of foreign particles into the
fan. Free circulation of the c ooling air must be ensured. The exhaust air - also the exhaust ai r of other machines next to the drive system - must not be immediately taken
in again.
5. Electrical connection
All opera tions must be carried out only by qualified and skilled personnel when the low-voltage machine is at standstill and when the machine isde-energized andprotected
against unintentional restart. This also applies to auxiliary circuits (e.g. brake, encoder, separate fan).
Check safe isol ation from the supply!
If the tolerances in EN 60034-1; IEC 34 (VDE 0530-1) - voltage ±5 %, frequency ±2 %, waveform, 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 e nds); use appropriate cable terminals. The connection to the PE conductor must be
safe. The plug-in connector must be screwed up tightly (to stop).
The clearances between bare, live parts and earth must not fall below: 8 mm at V
rated
≤ 550 V, 10 mm at V
rated
≤ 725 V, 14 mm at V
rated
≤ 1000 V.
The terminal box must be clean and dry; foreign particles, dirt and moisture affect operation. All unused cable e ntries and the box itself must be sealed a gainst dust and
water. For the trial run without output elements, lock the key. Check brake operation before the commissioning of low-voltage machines with brakes.
6. Operation
Vibration severities v
rms
≤ 3.5 mm/s (P
rated
≤ 15 kW) or 4.5 mm/s (P
rated
> 15 kW) are acceptable when the clutch is activated. If deviations from normal operation occur,
e.g. increased temperature, noise, vibration, find the cause and, if necessary, contact the manufacturer. Switch-off the machine in problematic situations.
If the drive is exposed to dirt, clean it regularly.
Do not switch-off the protection devices, not even for trial runs.
Integrated temperature sensors do not provide full protection. If necessary, l i mit the maximum current. Connect the function blocks to the option switch-off after several
seconds of operation a t I > I
rated
, especially if blocking may occur.
Shaft seals a nd bearings ha ve a limited service life.
Regrease the bearings using the relubrication facility while the low-voltage machine is running. Observe the sa ponification number. If the grease drain hole is sealed with
a plug (IP54 drive end; IP23 drive end and non-drive end), remove the plug before commissioning. Seal the bore holes with grease. Replace the prelubricated bearings
(2Z-bearings) after approx. 10.000 h - 20.000 h, a t the latest however after 3 - 4 years. Observe the manufacturer’s instructions.
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - e.mail: info@ctiautomation.net
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