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 47 displays an electrical schematic for various RFI configurations. Table 47 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 1336-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

U166ME3A

Figure 47

RFI Filter Part Number Information

Drive P/N

Drive Catalog

 

Machine Voltage

Filter P/N

370838

1336-AQF50

 

200-240V/1 Phase

Not Available

370838

1336-AQF50

 

200-240V/3 Phase

330274

 

 

 

 

 

370835

1336-BRF50

 

380-480V/3 Phase

330273

 

 

 

 

 

370837

1336-AQF100

 

200-240V/3 Phase

Not Available

370834

1336-BRF100

 

380-480V/3 Phase

330274

 

 

 

 

 

370828

1336-AO15

 

200-240V/3 Phase

330268

 

 

 

 

 

370825

1336-BO25

 

380-480V/3 Phase

330268

 

 

Table 47

 

F232120

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