Application Feature Setup
NOTES:
1.All safety conditions must be met for bypass mode operation.
2.The input contactor remains energized.
The Electronic Bypass Option will return to VFD mode operation as soon as the SED2 Relay in control opens. When the Electronic Bypass Option returns to VFD mode operation, the following occurs:
•The SED2 Relay opens, the Programmable Output on the Controller board opens, and the bypass contactor opens.
•The output contactor closes.
NOTE: All safety conditions must be met for VFD mode operation.
Settings
The Auto Bypass feature requires that Controller board DIP Switch 2 is set ON.
NOTE: During operation, the Auto Bypass Enabled indicator is on steady.
ON
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VFD0117R1
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OFF
Example SED2 Settings
Set parameters P0732 and P0748 for Auto Bypass on Drive Fault. Programming of the SED2 Relay is required for proper Auto Bypass activation. Set P0732 and P0748 as follows:
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P0732 in000 | 52.3 |
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P0732 in001 | 52.3 |
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P0748 |
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Siemens Building Technologies, Inc. | 43 |
