Safety and Operating Instructions for three-phase AC machines
(in confirmity with LOW-Voltage Directive 73/23/EEC)
Safety Instructions three–phase AC machines
1. General
Low-voltage machines have dangerous live and rotating parts and possibly hot surfaces. All operations serving transport, connection, commissioning and
maintenance are to be carried out by skilled, responsible technical personnel (in conformity with prEN 50110-1/ VDE 0105; IEC 364). Improper handling may
cause serious personal injury and damage to property.
2. Intended use
These low-voltage machines are intended for industrial and commercial installations. They comply with the harmonized series of standards EN 60034 (VDE
O53O). Their use in hazardous areas is prohibited unless they are expressly intended for such use (follow additional instructions). The degrees of protection IP
23 are by no means intended for outdoor use. Air-cooled models are rated for ambient temperatures of - 205C to + 405C and altitudes of 1000 m above sea
level. Strictly observe different instructions on the rating plate. Conditions on site must conform to all rating plate markings.
Low-voltage machines are components for installation in machinery as defined in the Machinery Directive 89/392/EEC. Commissioning is prohibited until
conformity of the end product with this directive has been established. (Follow i.a. EN 60204-1).
3 Transport, storage
Immediately report damage established after delivery to transport company. Stop commissioning, if necessary. 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, adequately dimensioned means of transport
(e.g. rope guides). Remove shipping brace before commissioning. Reuse it for further transports. When low-voltage machines are stored, make sure of dry,
dust-free, low-vibration (V
0.2 mm/s) environment (danger of bearing damage at rest). Before commissioning, measure insulation resistance. In case of
rms
values 1 k per volt of rated voltage, dry winding.
4. Installation
Make sure of even supporting surface, solid foot or flange mounting and exact alignment in case of direct coupling. Avoid resonances with rotational frequency
and double mains frequency which may be caused by the assembly. Turn motor by hand, listen for abnormal slipping noises. Check direction of rotation in
uncoupled state (mind Section 5.)
Mount or remove belt pulleys and couplings only using appropriate means (heat!) and cover them with a touch guard. Avoid excessive belt tensions (technical
list).
The balance of the low-voltage machine is indicated on the shaft end face or on the rating plate (H = half, F = full key). In case of half-key design, the coupling,
too, must be half-key balanced.
Remove protruding, visible part of key. Make necessary ventilating pipe connections, if any. Models with shaft ends pointing upward are to be provided with a
cover by the customer to prevent foreign objects from falling into the ventilator. The ventilation must not be obstructed and the exhaust air, also of neighbouring
sets, must not be drawn in again directly.
5. Electrical connection
All operations may be carried out only by skilled technical personnel on the low-voltage machine at rest and de-energized and provided with a safeguard to
prevent unintentional reclosing. This also applies to auxiliary circuits (e.g. anti-condensation heating).
Check safe isolation from supply!
Exceeding of the tolerances specified EN 60034-1 (VDE 0530,Teil1), i.e. voltage + 5%, frequency + 2%, waveform, symmetry, leads to elevated temperatures
and affects the electromagnetic compatibility. Take account of rating plate markings and of connection diagram in terminal box.
The connection must be so made as to mainntain a permanent safe electrical connection (no loose wire ends). Use appropriate cable terminals. Establish safe
protective conductor connection.
Minimum clearances between uninsulated live parts and between such parts and earth must not be below the following values: 8 mm at U
U
725 V, 14 mm at U
1000 V. No presence of foreign objects, dirt or moisture is admitted in the terminal box. Close unused cable entrance holes and the box
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itself in a dust- and watertight manner. For trial run without output elements, lock key. For low-voltage machines with brakes, check satisfactory functioning of
brake before commissioning.
6. Operation
Vibration severities of V
3.5 mm/s (P
rms
operation - e.g. elevated temperatures, noises, vibrations - find cause or consult manufacturer, if necessary. Do not defeat protective devices, not even in a trial
run. If in doubt, switch off low-voltage machine. In case of heavy dirt deposits, clean air channels periodically.
Regrease bearings with relubricating device while the low-voltage machine is running. Use right kind of grease. Where grease exit holes are closed with plugs
(IP 54 drive end, IP 23 drive and non-drive ends), remove plug before commissioning. Seal holes with grease. Replace prelubricated bearings (2-Z bearings)
after abt. 10,000 hours (2-poles) or after 20,000 hours (> 2-poles), but no later than after three to four years or according to the manufacturer's instructions.
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EDM82MVDG 1.0 D/GB/F
All manuals and user guides at all-guides.com
15 kW) or 4.5 mm/s (P
> 15 kW) are acceptable in coupled-mode operation. In case of deviations from normal
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550 V, 10 mm at
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