Danfoss VACON NXP FI10, Operating Manual

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Terminal Description
4 Phase W control
5 ADC synchronization
6 VaconBus data from control board to ASIC
7 VaconBus data from ASIC to control board
T Trip signal from power unit (FI12 and FI14)
U Feedback phase U (FI12 and FI14)
V Feedback phase V (FI12 and FI14)
W Feedback phase W (FI12 and FI14)
7.4.1 Connecting the Optic Fiber Cables
Context:
In case the fiber cables are not connected, connect them from the optical fiber board (FI9-FI10 and FI13) or star coupler board (FI12 and
FI14) to the power module.
CAUTION
DAMAGE TO THE COMPONENTS FROM INCORRECT CONNECTIONS
Connecting the cables incorrectly damages power electronic components.
-
Be careful to connect the fiber optic cables according to instructions.
Prerequisites:
The maximum length of the optical cable is 8 m.
The minimum bending radius for optical cables is 50 mm.
Procedure
1. To access the ASIC board, remove the cable cover in front of the power unit. See 6.4.1 Get Access and Locate the Terminals for FI9-
FI12 .
2. Connect the supply cable to the X10 connector on the ASIC board and to the X2 connector on the rear side of the control unit. For
FI12 and FI14, connect only power unit 1. Power unit 2 is connected to Asic load resistor.
Terminals X2 and X3 can be in use simultaneously. However, if the +24 V supply from the control I/O terminals (for example, from
board OPT-A1) is used, this terminal must be protected with a diode.
3. Connect each cable to the connectors marked with the same number on the ASIC board and on the rear side of the control unit.
4. In FI12 and FI14, connect the 4 fiber cables from the feedback boards to the star coupler board.
5. To prevent damages to the cables, attach the cable bundle at two or more points, at least once at each end.
6. Attach the cable cover on the power unit when the work is finished.
Control Unit
Operating Guide | VACON® NXI Inverters FI9-FI14
AQ304441431479en-000101 / DPD00909| 51
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