Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - Classic Control - Manual (Page 385)

Component Definition and Maintenance 6-95
7000 “B” Frame 7000-UM150I-EN-P – June 2013
Each FOI board also has an input for a signal from a Thermistor
Feedback Board. On the standard offering, there is one thermistor
from the Line Converter and one thermistor from the Machine
Converter, each going into the respective FOI board in the „A‟
position. There is capability in the control for 2 thermistors per
converter. The alarm and trip setpoints for each of these signals is
programmable in software.
There are 3 LEDs on the FOI board, and the following table
illustrates the status and description for the LED states:
LED Status Description
D1 Red – On Run – The FOI board has received the
Enable signal from DCB, and is enabled to
send and receive signals
D2 Yellow – On Ready – The FOI board has received
sufficient power for all transmit ports
D3 Green – On Power – the FOI board has received a
voltage signal greater than 2V
Fiber Optic Interface Board Replacement
To replace the Fiber Optic Interface Boards:
1. Ensure that all medium voltage and control voltage power to the
drive is isolated and locked out.
2. Note and mark the location and orientation of all the fiber optic
cables. Use the electrical drawing for reference.
3. Using your static strap, disconnect all of the connections.
4. Remove the FOI board from the DCB. There are four standoffs
that snap into place on the FOI, and they need to be carefully
handled when disconnecting the boards. There is also the 28-pin
connection between the boards, and this connection should be
handled carefully as you do not want to bend the pins.
5. Install the new FOI on the DCB. Ensure the standoffs snap into
place.
6. Reconnect all fiber optic connections and verify the locations.
7. Apply Low Voltage power and complete a System Test and
Medium Voltage tests to ensure the new board functions
properly.
Fiber Optic Interface
Boards (cont.)