The Advance Controls, Inc. VFD Transfer Switch System can operate in either of two (2) reversible modes.
Transfer Switch connects either the main drive or the backup drive to the motor.
Transfer Switch connects either the main motor or the backup motor to the drive.
All multiplex installations are to be furnished complete with a manually operated cam style transfer switch system with positive opening contacts. Contactor or other types of transfer systems are not allowed.
The manually operated cam switch style transfer switch shall be manufactured by Advance Controls, Inc., Bradenton, Florida. The switch shall have 2 positions, “1” and “2”.
The switch shall be packaged in an enclosure separate from the VFD.
The degree of environmental protection furnished by the enclosure shall be Type 12,
Type 4 or Type 4X.
The transfer system shall be specified, sized and installed