Operating Guide | VACON® NXI Inverters FI9-FI14
T W V U
7 6 5 4 3 2 1
1 Power unit 1 (ASIC board and Feedback board)
3 Star-coupler board on control unit
Illustration 25:
Connections between the Star-coupler Board, ASIC Boards and Feedback Boards, FI12 and FI14
Table 10: Terminals on Optical Cable Adapter Board/Star-coupler Board, ASIC Boards and Feedback Boards
Terminal
ASIC board of Power unit 1 / Power unit 2 (FI12 and FI14)
1
2
3
4
5
6
7
Feedback board (FI12 and FI14)
T
U
V
W
Optical fiber board/Star coupler board on control unit
1
2
3
50 | Danfoss A/S © 2019.11
1
T
7 6 5 4 3 2 1
Description
Gate control enable
Phase U control
Phase V control
Phase W control
ADC synchronization
VaconBus data from control board to ASIC
VaconBus data from ASIC to control board
Trip signal (Power unit 1 / Power unit 2)
Feedback phase U (Power unit 1 only)
Feedback phase V (Power unit 1 only)
Feedback phase W (Power unit 1 only)
Gate control enable
Phase U control
Phase V control
T W VU
T
7 6 5 4 3 2 1
W V U
2 Power unit 2 (ASIC board and Feedback board)
Control Unit
2
7 6 5 4 3 2 1
3
AQ304441431479en-000101 / DPD00909
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