Allen-Bradley 1770-M10 Spezifikationen PDF herunterladen (Seite 132)

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

Chapter 1 Drive Comparisons

Safety Ground (PE)

This is the safety ground for the drive that is required by code. This point must be

connected to adjacent building steel (girder, joist), a floor ground rod or bus bar

(see above). Grounding points must comply with national and local industrial

safety regulations and/or electrical codes.

Power Feeder

Each power feeder from the substation transformer to the drive must be provided

with properly sized ground cables. The conduit or cable armor should be bonded

to the substation ground at both ends. Each transformer enclosure and/or frame

must be bonded to ground at a minimum of two locations.

Encoder/Resolver Ground Connections

If used, must be routed in grounded steel conduit. The conduit must be

grounded at both ends. The encoder/resolver cable shield must be connected to

the shield ground on the drive side. Do not connect the encoder/resolver cable

shield to ground on the motor side.

Tachometer Ground Connections

If used, ground connections must be routed in grounded steel conduit. The

conduit must be grounded at both ends. Ground the cable shield at the drive end

only using the shield clamps on the grounded metal plate supporting the control

board (see I/O Terminal Block Locations on page 71 for shield clamp location).

Input Devices for PowerFlex DC Drives

Isolation Transformers

Isolation Transformers are available for installations that have specific types of

AC supply configurations or require drive protection due to AC line

disturbances.

Three Phase Primary

Voltage

Three Phase Secondary Voltage

kVA kW (Hp) Voltage 230V AC Cat. No. 460V AC Cat. No. 575V AC Cat. No.

5 1.2…2.2

(1.5…3)

230 1321-3TW005-AA 1321-3TW005-AB N/A

460 1321-3TW005-BA 1321-3TW005-BB N/A

575 1321-3TW005-CA 1321-3TW005-CB N/A

7.5 3.7 (5) 230 1321-3TW007-AA 1321-3TW007-AB N/A

460 1321-3TW007-BA 1321-3TW007-BB N/A

575 1321-3TW007-CA 1321-3TW007-CB N/A

11 5.5 (7.5) 230 1321-3TW011-AA 1321-3TW011-AB N/A

460 1321-3TW011-BA 1321-3TW011-BB N/A

575 1321-3TW011-CA 1321-3TW011-CB N/A

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Allen-Bradley 1770-M10 Spezifikationen Seite 132