Operating Instructions

NEMA Type 3R/3RHE Bypass Operation Overview
Siemens Building Technologies, Inc. 7
− If remote bypass operation is also selected, the motor will not run on bypass until
the contact for the Customer Remote Start Input closes.
• Safety Input
− Requires a jumper between bypass control terminals 3 and 4. Jumper is supplied
from the factory.
− Contact must be closed for the motor to be run in either the drive or bypass
modes.
WARNING:
This contact disconnects the 120 Vac control power circuit.
• Essential Service Mode
− Closing terminals 13 and 16 forces the bypass contactor to close regardless of
the selected operation.
− All calls to open the bypass contactor are ignored except the opening of this
contact or the removal of main power.
WARNING:
All calls to open the bypass include ignoring the tripping of the
mechanical overload and opening of the safety input. Perform this
procedure with extreme care.