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3-16
Installing the Converter
Power Board - PCB Reference 385128
External Motor Field (default for this board)
This power board (printed with the
above number) is supplied in
F+
FL1
F-
FL2
external stack options using an
external motor field supply.
Connect the external supply to
busbars FL1 and FL2. The motor
field output is taken from busbars F+ and F-.
You should provide suitably rated external, fast-acting semi-conductor fusing, to a maximum of
20A.
Caution
When using an external ac input it is important to have the correct phase relationship on
the terminals. The supply must be derived from L1 (Red) and L2 (Yellow) phases directly
or indirectly through a transformer.
L1 must be connected to D1, and L2 connected to D2.
DC Contactor - External VA Sensing
Connections are provided for external armature voltage sensing (at the motor) for when a dc
contactor is used between the drive and motor.
Power Board - PCB Reference 385851
EXA+
EXA-
A+
A-
to
terminals
A+
A-
D5 & D6
contactor
M
fuses
590D DC Digital Converter - HA467078
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