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1. Table of Contents

ACS255 – IP20 (600V Variants) EASY START-UP GUIDE ________________________________________ 7

ACS255 – IP66 (600V Variants) EASY START-UP GUIDE ________________________________________ 8

2. Safety ____________________________________________________________________________ 10

What this chapter contains _____________________________________________________________________ 10

Use of warnings ______________________________________________________________________________ 10

Safety in installation and maintenance ____________________________________________________________ 10

Safety in start-up and operation _________________________________________________________________ 11

3. General Information and Ratings ______________________________________________________ 13

3.1. Type designation key ___________________________________________________________________ 13

3.2. Drive model numbers – IP20 _____________________________________________________________ 14

3.3. Drive model numbers – IP66 _____________________________________________________________ 14

4. Mechanical Installation______________________________________________________________ 15

4.1. General ______________________________________________________________________________ 15

4.2. Before Installation _____________________________________________________________________ 15

4.3. UL Compliant Installation ________________________________________________________________ 15

4.4. Mechanical dimensions and weights _______________________________________________________ 15

4.5. Guidelines for Enclosure mounting (IP20 Units) ______________________________________________ 17

4.6. Mounting the Drive – IP20 Units __________________________________________________________ 17

4.7. Guidelines for mounting (IP66 Units) _______________________________________________________ 18

4.8. Removing the Terminal Cover ____________________________________________________________ 18

4.9. Routine Maintenance ___________________________________________________________________ 18

5. Electrical Installation ________________________________________________________________ 19

5.1. Grounding the Drive ____________________________________________________________________ 19

5.2. Wiring Precautions _____________________________________________________________________ 20

5.3. Incoming Power Connection ______________________________________________________________ 20

5.4. Compatibility with IT (ungrounded) and corner-grounded TN systems ____________________________ 21

5.5. Drive and Motor Connection _____________________________________________________________ 22

5.6. Motor Terminal Box Connections __________________________________________________________ 22

___________________________________________________________________________________________ 22

5.7. Motor Thermal overload Protection. _______________________________________________________ 22

5.8. Control Terminal Wiring _________________________________________________________________ 22

5.9. Connection Diagram ____________________________________________________________________ 23

5.10. Safe Torque Off ________________________________________________________________________ 24

6. Managing the Keypad _______________________________________________________________ 28

6.1. Keypad Layout and Function _____________________________________________________________ 28

6.2. Changing Parameters ___________________________________________________________________ 28

ABB ACS255 User Manual

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