Baldor MN770 - page 49

Section 1

General Information

B-2 Appendix B MN770

Contents

Main Table of Contents Page Introduction M D + C ) Limited Warranty Safety Notice Page Section 2 Technologies Overview S S S S S S S Table 2-1 Drive Performance Comparison DC SCR Control Inverter Vector Section 3 Application Considerations General Considerations Page Page Elevator Motor Horsepower Selection Table 3-2 Motor Sizing Dynamic Brake Hardware Selection Section 4 Hardware Information General Considerations Encoder Retrofit Page Page Page Section 5 Set-Up Information DC SCR Controls Page Page Recommended Power Up/Down Sequence for Elevators Using DC SCR Controls Figure 5-4 Typical Power Up/Down Sequence for DC SCR Controls. Inverter Controls Page Recommended Power Up/Down Sequence for Elevators Using Inverter Controls Figure 5-5 Power Up/Down Sequence for Inverter Controls. Vector Controls (Do not connect the motor leads to the Vector Control) Figure 5-1 Initial Vector Control Connection Page Page S S S Table 5-1 Slip Adjustment Value. Recommended Power Up/Down Sequence for Elevators Using Vector Controls Figure 5-2 Power Up/Down Sequence for Vector Controls. Table 5-2 Pre-Installation Tests Motor Ratings (From Nameplate) Installation Data Dynamic Operating Conditions Table 5-3 Vector Control Worksheet Page Section 6 Troubleshooting DC SCR Control Electrical Noise Considerations Causes and Cures Figure 6-1 Electrical Noise Display Figure 6-2 R-C Snubber Circuit Figure 6-3 R-C Snubber Circuit & twisted-pair Figure 6-4 AC & DC Coil Noise Suppression Page Figure 6-9 30HP, 500VDC Drive, Shielded Special Drive Situations Drive Power Lines Radio Transmitters Control Enclosures Special Motor Considerations Figure 6-10 Isolated Mounting Method Page Optical Isolation Plant Ground Appendix A Load Weighing / Torque Feed Forward Figure A-1 Typical Elevator Application Table A-1 Appendix B Serial Communications Figure B-1 Remote Communications Page Appendix C Elevator Industry Glossary