Cabling and connections
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6
6.2
Control unit
6.2.1 NXL Compact (MF2 – MF3)
The control unit of the NXL frequency converter is integrated with the power unit and consists roughly of
the control board and
one optional board
, which can be connected to the
slot connector
of the control
board.
6.2.2 NXL HVAC (MF4 – MF6)
In NXL HVAC frames
MF4-MF6
there are two option board connectors SLOT D and SLOT E (see Figure
6-19).
Figure 6-19. Option board slots D and E in frames MF4 – MF6
6.2.2.1
Allowed option boards in NXL HVAC:
See below for the allowed option boards in the two slots on NXL HVAC frequency converters:
In
NXL HVAC
series the option board
NXLOPTAI is included in all deliveries as standard
. The free slot
D is meant for additional fieldbus boards.
When two option boards are used, the one in
slot E has to be NXLOPTAI or NXLOPTAA
. It is not allowed
to use two NXOPTB_ or NXOPTC_ boards. Also combinations of NXOPTB_ and NXOPTC_ –boards are
prohibited.
See descriptions for NXLOPTAA and NXLOPTAI option boards in chapters 10 and 11.
SLOT D
C2
C3 C4
C6
C7
C8
CI
CJ
SLOT E
AA
AI
B1
B2
B4
B5
B9 C2 C3 C4 C6 C7
C8 CI
CJ
Slot D: Fieldbus boards
Slot E: I/O boards, fieldbus boards and expanders
D
E