ravioli PME Evolution Series Instruction Manual

3
Nominal voltage 660 V ac - dc
Nominal current Ith 20 A - 50 A - 100 A
Protection degree IP65
Max rotating speed 30 revs / min
Test voltage 2,5 kV
Operating temperature - 20 °C ÷ + 60 °C
RAVIOLI Spa • Via Passo Pordoi, 4 • I - 20139 Milano
Tel. ++39 02.53.63.01 • fax ++39 02.53.63.05
E-mail: [email protected] • www.raviolispa.com
Sliprings
Type PME Evolution
Housing In aluminium with insulating thermoplastic bands
Positioning Vertical axis, assembly on the base plate by means
of 2 screws M10
Connections Rings wired with 2 m. long cable
Cable entry With single-pole wires connected to the rings and
through pipe unions M32 to the brush-holders
Brushes 20 A, 50 A and 100 A in copper-graphite
Executions From 20 to 60 rings 20 A - mixed executions 20/50/100 A
Armonized rules EN 60947-1 EN 60529
2006/95CE - 2004/108/CE - 2006/42/CE Directives
Marking CE
Main Performances
Functional Features Standard Types
Ed. 10.04 - pag.1
Technical Sheet 3.23
20 A
Type N° Rings H = mm*
G PME B20 20 175
G PME B30 30 229
G PME B40 40 283
G PME B50 50 337
G PME B60 60 391
Accessories
Availability on demand:
• Mercotac
• Absolute Encoder
• Micro-switches application
• One passage for air
Availability on demand:
• Mixed executions with 100 A, 50 A and 20 A
• Types with appropriate rings for signals

The PME Evolution slipring has to be installed only by qualified personnel in
compliance with current safety standards. Power to the machine must be tur-
ned off before carrying out wiring. Connections are to be made in compliance
with the wiring scheme of the controlled equipment. After installation has been
completed, the installer is required to check that all commands are working
properly. Avoid prolonged contact with oils and acids when using the equip-
ment, as these may damage the products.
1) The base plate (ref. 1) is made by using fork fastons with interaxis 260 mm.
and screws M10. Two holes of ø 9 mm., 13 mm. deep on the flange (Ref. 7)
are used for the rings.
We recommend the coupling to be made with slack to take up any possible
runout during rotation.
Axial stress must be avoided for good functioning.
2) The cables are connected through lateral pipe unions (Ref. 2).
The torque for brushes terminals is 0,8 Nm for the versions 20 A and 50 A,
and 2 Nm for the version 100 A
Please ensure that the wires do not interfere with any moving part. The rings
are cabled with a 2 m long cable from the main plate (Ref. 1). Longer
cables are available upon request.
3) Please check the equipotential of any surface not generally recommended
to be used under tension, and the ground connection using the cables
provided.
A programme of periodical maintenance is required to be carried out to ensu-
re that the PMP Evolution slipring is kept in perfect working order. All main-
tenance is to be effected by qualified personnel using only original spare parts.
Any defective or altered parts must be replaced promptly, even outside the
maintenance schedule, as they could impact on the safety of the device.
In particular:
1) Disconnect from power source and wait until the internal parts have coo-
led down.
2) Remove the cover (ref. 6), the bands (Ref. 5) and the gaskets (Ref. 3).
3) Check the brushes for wear and tear, and check that they adapt properly to
the rings.
4) Remove copper-graphite dust with de-humidified compressed air or a
clean brush.
5) Check that the cables tightness is corresponding to the torque which is spe-
cified in our installation instructions.
6) Check that the cover gaskets is in good condition.
7) Replace the cover (ref. 6), the bands (Ref. 5) and the gaskets (Ref. 3).
RAVIOLI Spa • Via Passo Pordoi, 4 • I - 20139 Milano
Tel. ++39 02.53.63.01 (ric. aut.) • fax ++39 02.53.63.05
E-mail: [email protected] • www.raviolispa.com
T
Technical Sheet
echnical Sheet 3.23
Installation and Wiring Maintenance
Dimensions
Ed. 10.04 - pag.2
RAVIOLI Spa • Via Passo Pordoi, 4 • I - 20139 Milano
Tel. ++39 02.53.63.01 • fax ++39 02.53.63.05
E-mail: [email protected] • www.raviolispa.com
H = mm sporgenza cavi 2m
Ø60
260
10.5
302
222
Ø9
prof.13
1
27 6 3 5
Please note that the guarantee does not cover any equipment whose parts have been modified and tampered.
RAVIOLI declines any responsibility for damage deriving from incorrect installation or use of the product.
2 m Long cable