SED2 Variable
Frequency Drives
Startup Procedure and
Checklist
Document No. 155-718
September 14, 2011
Siemens Industry, Inc.
Table of Contents
Prerequisites ..........................................................................................................................................................1
Preparing for SED2 VFD Startup...........................................................................................................................1
HVAC Startup Procedure for SED2 with Conventional Bypass Option.................................................................4
HVAC Startup Procedure for SED2 with Electronic Bypass Option ......................................................................6
HVAC Startup Procedure for SED2 without Bypass Option..................................................................................9
Appendix: User-Defined Parameter Settings.........................................................................................................10
Prerequisites
Before proceeding, familiarize yourself with SED2 Variable Frequency Drive (VFD or
“drive”) documentation:
SED2 VFD Installation & Startup Guide (125-3201):
• Connection diagrams
• Terminal function
• Quick commissioning
• Parameter reference list
SED2 VFD Operation & Maintenance (O&M) Manual (125-3202):
• Commissioning features
• Programmable features
• Troubleshooting examples
Preparing for SED2
VFD Startup
In order to provide you with the most reliable drive available, and to avoid any extra
costs related to loss or reduction of warranty coverage, a factory-certified specialist
should complete this startup procedure. Please complete the following checklist and
maintain it in a secure location as technical service personnel may request information
from this checklist. Inability to provide this information may result in delays and extra
costs to the end user.
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