Electrical Interference

EMI

Careful attention must be given to the arrangement of power and ground connections to the drive to avoid interference with nearby sensitive equipment. Be sure to replace all ground connections to their appropriate locations.

RFI

Drives can be installed with an RFI filter, which controls high-frequency conducted emissions into the main supply lines.

Where it is essential that very low emission levels must be achieved or if conformity with standards is required, the optional RFI filter may be present. Figure 37 displays an electrical schematic for various RFI configurations. Table 39 shows associated RFI filter part numbers.

CAUTION

ELECTRIC SHOCK HAZARD! Service and

maintenance to be performed only by an authorized technician. Disconnect power before opening any access panels.

W661

Allen-Bradley 1305-Series AC Drives

SINGLE PHASE MACHINES

1

2

 

 

 

 

INPUT

L1

LINE

ALLEN-BRADLEY

LOAD

POWER

L2

RFI

 

 

 

 

FILTER

 

 

 

 

 

2

3

 

3

PROVEN EARTH GROUND

 

TO AC DRIVE UNIT Ð

 

 

 

 

GREEN-YELLOW WIRE MUST CONNECT TO

 

 

 

 

AC DRIVE GROUND TERMINAL.

WASHING

BLACK WIRES WILL CONNECT TO AC DRIVE

INPUT TERMINALS "R", "S" & "T".

MACHINE

BLACK WIRES ARE NOT LABELED AND THEIR

GROUNDING

RESPECTIVE TERMINATION IN AC DRIVE IS

TERMINAL

NOT OF IMPORTANCE.

 

THREE PHASE MACHINES

1

2

 

 

 

 

INPUT

L1

LINE

ALLEN-BRADLEY

 

L2

 

LOAD

POWER

RFI

 

 

L3

 

 

 

 

 

FILTER

 

 

 

 

 

 

 

 

 

 

2

3

 

3

PROVEN EARTH GROUND

 

TO AC DRIVE UNIT Ð

 

 

 

 

GREEN-YELLOW WIRE MUST CONNECT TO

 

 

 

 

AC DRIVE GROUND TERMINAL.

WASHING

BLACK WIRES WILL CONNECT TO AC DRIVE

INPUT TERMINALS "R", "S" & "T".

MACHINE

BLACK WIRES ARE NOT LABELED AND THEIR

GROUNDING

RESPECTIVE TERMINATION IN AC DRIVE IS

TERMINAL

NOT OF IMPORTANCE.

 

U166ME3A

Figure 37

RFI Filter Part Number Information

Drive P/N

Drive Catalog

 

Machine Voltage

Filter P/N

370815

1305-AA12

 

200-240V/1 Phase

Not Available

370815

1305-AA12

 

200-240V/3 Phase

330272

 

 

 

 

 

370816

1305-BA06

 

380-480V/3 Phase

330271

 

 

 

 

 

370818

1305-BA09

 

380-480V/3 Phase

330272

 

 

Table 36

 

F232120

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