Operating Instructions

Table of Contents
Siemens Building Technologies, Inc. iii
Additional Parameter Settings .......................................... 71
Flying Start................................................................... 71
Automatic Restart ........................................................ 73
Vdc Controller .............................................................. 77
Pulse Frequency.......................................................... 77
Motor Data Identification.............................................. 78
Reset to Factory Defaults ............................................ 80
Network Communications............................................ 81
Changing Individual Parameter Digits .............................. 82
Maintenance ......................................................................... 83
Prerequisites ..................................................................... 83
General Inspection and Cleaning ..................................... 83
Muffin Fan Inspection and Cleaning ................................. 83
Re-energize Unit ............................................................... 84
DC Bus Integrity Test........................................................ 84
Contactors and Switches .................................................. 84
Motor Bearing Wear.......................................................... 84
Troubleshooting................................................................... 85
Reading Faults.................................................................. 85
Resetting Faults ................................................................ 87
Troubleshooting the Operator Panel................................. 88
Troubleshooting Using the Operator Panel ...................... 89
Fault Codes....................................................................... 90
Warning Messages ........................................................... 98
Replacement Parts............................................................... 102
Repair.................................................................................... 103
Technical Specifications..................................................... 104
Appendix A: Parameters, Defaults, and Settings ............. 106
Appendix B: SED2 Point Maps ........................................... 117
Glossary................................................................................ 123