Installation manual

4-10 Control Wiring for PowerFlex 700S Drives with Phase II Control
Auxiliary Power Supply
You may use an auxiliary power supply to keep the 700S Control Assembly
energized, when input power is de-energized. This allows the Main Control
Board, DriveLogix controller and any feedback option cards to continue
operation. Connect auxiliary power to J15 on the Fiber Optic Interface
board. You must set parameter 153 [Control Options], bit 17 “Aux Pwr
Sply” to enable this feature.
Important:For drives manufactured prior to June 2006, the Voltage
Feedback board provides the bulk 24 volts for the Fiber Optic
Fiber Optic Interface board. If the auxiliary power supply (24
volts) is greater than the Voltage Feedback board (24 volts) then
the switch mode power supply on the Voltage Feedback board
will shut down. If the auxiliary power supply has an adjustable
voltage, then the voltage should be lowered (23.75). This will
allow the Voltage Feedback board power supply to supply the
24 volts. If the auxiliary power supply cannot be adjusted, then
a 500 ohm resistor needs to be added to the Voltage Feedback
board. In this case, please contact Drives Technical Support for
details.
Table 4.B Auxiliary Power Supply Specifications
Figure 4.1 PowerFlex Fiber Optic Interface Board
Voltage Current (Min) Power (Min)
24V dc ± 5% 3A 75W
J15 Auxiliary
Power Connector
Pin 1 (24V dc power)
Pin 3 (24V dc common)