Schneider Electric Multi-Loader Dokumentacja Pobierz pdf (Strona 25)

Connections (continued),

installation

recommendations

Altivar

variable speed drives

Braking unit and resistors, motor chokes,

additionalEMClters

Recommended connections (continued)

Braking unit VW3A7005 used with braking

resistors VW3A7701, 702, 723, 724

Motor chokes VW3A4551 to 554

PC/–

PA/+

–

ATV12pppppp

Braking unit

VW3A7 005

Braking

resistor

VW3A77pp

U/T1

V/T2

W/T3

PE PE

U/T1

V/T2

W/T3

ATV12pppppp

VW3A455p

Additional EMC input lters VW3A4416 to 419

Single-phase power supply Three-phase power supply

L'1

L'2

R/L1

S/L2/N

ATV12ppppF1

ATV12ppppM2

VW3A4416, 417

L'1

L'2

L'3

R/L1

S/L2

T/L3

ATV12ppppM3

VW3A4418, 419

Connections for ensuring conformity to EMC standards

Principle

b Grounds between the drive, motor and cable shielding must have "high frequency" equipotentiality.

b Use shielded cables with shielding connected to ground throughout 360° at both ends for the motor cable and the control-signalling cables.

Conduit or metal ducting can be used for part of the shielding length provided that there is no break in the continuity of the ground connection.

b Ensure maximum separation between the line supply cable and the motor cable.

Installation diagram

948

Metal plate to be mounted on the drive (grounded casing).1

ATV122 pppppp drives

Unshielded power supply wires or cable3

Unshielded wires or cable for the output of the fault relay contacts4

Shielding of cables 5 6 and 7 attached and grounded as close as possible to

the drive:

Strip the cable to expose the shielding. -

Attach the cable to the plate - 1 by tightening the clamp on the stripped part of

the shielding.

The shielding must be clamped tightly enough to the metal surface to ensure

good contact.

For cables 6 and 7, the shielding must be connected to ground at both ends.

The shielding must be continuous, and if intermediate terminals are used,

they must be placed in EMC shielded metal boxes.

Shielded cable for connecting the motor6

Shielded cable for connecting the control-signalling cables. For applications 7

requiring several conductors, use cables with a small cross-section (0.5 mm

)

Unshielded cable for connecting the braking unit8

PE cable (green-yellow)9

SelectorswitchfordisconnectingtheintegratedEMClteronATV1210 ppppM2

drives

Note: The HF equipotential ground connection between the drive, motor and cable shielding does not remove the need to connect the PE conductors (green-

yellow) to the appropriate terminals on each unit. If using an additional EMC input lter, it should be mounted beneath the drive and connected directly to the line

supply via an unshielded cable. Link 3 on the drive is then established via the lter output cable.

Use on an IT system (isolated or impedance grounded neutral)

Use a permanent insulation monitor, such as Schneider Electric's XM200, which is compatible with non-linear loads. ATV12ppppM2 drives

haveintegratedEMClters.

ForuseonanITsystem,theselterscaneasilybedisconnectedbymeansofaselectorswitch10 which can be accessed without removing

the drive.

Introduction:

page 8

Specications:

page 10

References:

page 14

Dimensions:

page 18

Functions:

page 26

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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