Specifications
SED2 VFD Startup, Operation, and Maintenance Manual
ii Siemens Building Technologies, Inc.
Ungrounded Systems and Y Capacitor......................... 25
Access to Connection Terminals................................... 28
Motor Frequency and Unit of Measurement
DIP Switches ................................................................. 31
Input Power and Motor Terminal Layout ....................... 32
Tightening Torque for Input Power and
Motor Connections ........................................................ 34
Cable Cross-Sections for Input Power and
Motor Cables ................................................................. 34
Input Power Connection ................................................ 37
Motor Cable Length....................................................... 38
Motor Connection (Wye "Y"/Star or
Delta Configuration) ...................................................... 39
Direction of Motor Rotation............................................ 40
Motor Overload Protection ............................................ 41
Connection of Multiple Motors....................................... 42
Analog Input DIP Switches............................................ 43
Control Terminal Connections............................................ 44
Control Terminal Layout ................................................ 44
Analog and Digital I/O Control
Terminal Connections ................................................... 47
Parameters ............................................................................. 49
Overview............................................................................. 49
Parameter Structure ........................................................... 49
Parameter Indexes ............................................................. 49
SED2 Operator Panels........................................................... 51
Overview............................................................................. 51
Basic Operator Panel (BOP) .............................................. 51
Advanced Operator Panel (AOP) ....................................... 52
BOP Display and Pushbuttons ........................................... 52
Commissioning...................................................................... 55
Motor Nameplate Data for Parameter Settings .................. 56
Prerequisites to Startup Procedure .................................... 57
SED2 (stand-alone) Startup Procedure.............................. 59
Quick Commissioning Procedure ....................................... 61










