Installation Instructions

Document No. 129-374
Installation Instructions
October 2, 2009
Page 4 of 11 http://www.siemens.com/hvp/drives Siemens Industry, Inc.
Power Wiring
NOTES: (#3 Drive parameters removed)
1. Branch circuit protection to be provided by installer, per UL508A, if not provided with drive.
2. If needed, use
SBT-specified
3. Control and communication wiring should be 300V UL minimum.
input line reactors to ensure a good impedance match with your drive.
4. Communication wiring should be run with maximum separation possible from all other wiring.
5. Essential service mode operates the motor full speed (bypass) with no protection for the motor or system.
6. See Siemens Publication SED2 Conventional ByPass Options Operating Instructions (125-3215) for proper
fuse and wire sizes.
7. See Siemens Publication SED2 Variable Frequency Drives Startup, Operation and Maintenance Manual
(125-3201) for SED2 VFD input/output signal wiring details.
Figure 5. C-Bypass Power Circuit.