Allen-Bradley 1770-M10 Especificaciones descargar pdf (Pagina 84)

84 Rockwell Automation Publication PFLEX-AP009A-EN-P - September 2012

Chapter 1 Drive Comparisons

PowerFlex DC Field Converter Connections

For 575V or 690V AC input drives only, a step down transformer with either a

230 VAC secondary, for a 150V motor field, or 460 VAC, for a 300V motor field,

is required before the input to the field control circuit (terminals U1, V1).

Also, If the rated voltage of the DC motor field is not compatible with the field

DC output voltage of the drive, an external field control transformer must be

used. Refer to the following example for transformer selection information.

Example: 10 Hp, 240V Armature, 17.2A, 240V Field, 2.0 A motor

a. The field control transformer must have a 230V primary, a 460V

secondary, and be single-phase, 60 Hz

b. kVA = 2 A x 460VAC x 1.5 = 1.38 kVA (1.5 kVA is closest)

In addition, the following configuration must to completed in the

PowerFlex DC drive:

c. Control board DIP switch S14 must be set to select a value of 2 A.

d. Parameter 374 [Drv Fld Brdg Cur] must be programmed to match DIP

switch S14 = “2.”

e. Parameter 280 [Nom Mtr Fld Amps] must be programmed to the rated

motor nameplate field current “2.”

PowerFlex DC Field Converter Terminal Designations

PowerFlex DC Frames A…C Field Circuit Wire Sizes and Terminal Specifications

PowerFlex DC Frame D Field Circuit Wire Sizes and Terminal Specifications

Terminal Description

U1, V1 Single-phase AC line input power to the field circuit.

C1, D1 DC output power to the motor field.

Terminals Wire Size and Type

(1)

(1) See “Cable and Wiring Recommendations” in the PowerFlex Digital DC Drive User

Manual, publication 20P-UM001

, for cable spacing information.

Tightening Torque

N•m (lb•in)

U1, V1, C1, D1 24…10 AWG/kcmils 0.5…0.8 (4.4…7.1)

Drive Current Rating Code

(1)

(1) See PowerFlex Digital DC Drive on page 28, positions 8, 9 and 10 for corresponding drive HP rating, armature amp rating and field

amp rating.

Terminals Wire Size

(2)

(2) See “Cable and Wiring Recommendations” in the PowerFlex Digital DC Drive User Manual, publication 20P-UM001, for cable spacing

information.

Tightening Torque

•m (lb•in)

230V 460V 575V 690V

875 830 810 678 U1, V1, C1, D1 6 AWG 4.0 (35.4)

1K0 996 1K0 791

–– 1K2904

–– 1K31K0

–– 1K6–

– 1K1 – 1K1 2 AWG

– 1K3 – 1K2

– 1K4 – 1K4

–––1K5

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 193 194

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Allen-Bradley 1770-M10 Especificaciones Pagina 84

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