Connecting The Optic Fiber Cables - Danfoss VACON NXP FI9 Operating Manual

Operating Guide | VACON® NXI Inverters FI9-FI14
Terminal
4
5
6
7
T
U
V
W

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.
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.
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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
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.
Danfoss A/S © 2019.11
Description
Phase W control
ADC synchronization
VaconBus data from control board to ASIC
VaconBus data from ASIC to control board
Trip signal from power unit (FI12 and FI14)
Feedback phase U (FI12 and FI14)
Feedback phase V (FI12 and FI14)
Feedback phase W (FI12 and FI14)
C A U T I O N
6.4.1 Get Access and Locate the Terminals for FI9-
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Control Unit