Nema Type 3R/3Rhe Bypass Operation Overview - Siemens SED2 VFD NEMA Operating Instructions Manual

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
NEMA Type 3R/3RHE Bypass Operation
Overview
NOTE:
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Drive Mode
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Local Bypass Operation
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Remote Bypass Operation
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Automatic Bypass Operation
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6
See Figure 6 for NEMA Type 3R/3RHE Bypass control terminals.
Drive output contactor closes (and drive input contactor if supplied). The motor is
controlled by the SED2 output.
Change the position of the Drive-Off-Bypass switch to OFF or the bypass stops
the SED2 by opening digital input 4, stop 3.
Requires a jumper between bypass control terminals 7 and 8. Jumper is supplied
from the factory.
The system goes to bypass by closing the bypass contactor. The bypass
indicating light illuminates whenever the Drive-Off-Bypass switch is placed in the
BYPASS position.
The motor is connected to utility/line power.
Requires a jumper between bypass control terminals 5 and 6.
Requires that the Drive-Off-Bypass switch be in the BYPASS position.
The system goes to bypass by closing the bypass contactor and the bypass
indicating light illuminates whenever bypass control terminals 1 and 2 are closed
(Customer Remote Start Input).
The motor is connected to utility/line power.
Requires wiring a normally open (NO) contact from DR1 to terminals 9 and 10.
Requires wiring a normally closed (NC) contact from DR1 to terminals 11 and 12.
Requires programming of P0731=52.3 and P0748=
Requires that the Drive-Off-Bypass switch be in the DRIVE position.
The system goes to bypass by closing the bypass contactor and the bypass
indicating light illuminates whenever the drive registers a fault condition and
output relay No. 1 changes state.
The motor is connected to utility/line power.
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Siemens Building Technologies, Inc.