Installation Instructions

Document No. 129-708
Installation Instructions
May 10, 2016
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and
models as design improvements are introduced. Other product or company names mentioned herein may be the trademarks of their
respective owners. © 2016 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
USA
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Document No. 129-708
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Page 6 of 6
Bypass Parameter Setting
1. Change Ctrl Signal 2 A (3.5.1.2) to a value
of DigIN Slot0.1 (virtual off). This removes
the reverse command from DI2.
2. Change Run Interlock 2 (3.5.1.13) to a
value of DigIN SlotA.2 (use Digital Input 2).
This is used to monitor the M2 Contactor.
3. Change RO2 Function (3.5.3.2.4) to a value
of FaultInvert. This is for fail-safe operation
of fault relay (wired to normally closed
contact). If the inverter loses power but the
bypass does not, then the contact closes to
indicate to the bypass that there is a
problem.
For SED2 Electronic Bypass only when the interlock
feature is enabled, continue to Steps 4 and 5.
4. Change Preset Freq Sel0 (3.5.1.15) to a
value of DigIN Slot0.1 (virtual off) to remove
DI4 from that definition.
5. Change Run Interlock 1 (3.5.1.12) to a
value of DigIN SlotA.4 (use Digital Input 4).
This is used to monitor the terminals 7 and 8
of the SED2 E-Bypass Board.
The installation is now complete. See the SED2 to
BT300 Migration Guide (125-1005) for further
information.