The control panel can be mounted on a platform on the inverter cubicle door. The maximum
number of platforms on one door is four, but one control panel can be used to control several
units through a panel link.
For details on the control panel, see ACX-AP-x Assistant control panels User’s manual
(3AUA0000085685 [English]).
￭ Control by PC tools
There is a USB connector on the front of the panel that can be used to connect a PC to the
drive.
￭ Fieldbus control
The inverter unit can be controlled through a fieldbus interface if the unit is equipped with
an optional fieldbus adapter, and when the control program has been configured for fieldbus
control by parameters. For information on the parameters, see the appropriate firmware
manual of the inverter unit.
￭ Other control devices
DC switch-disconnector (option +F286)
The inverter unit can optionally be equipped with a DC switch-disconnector [Q2] which
allows the isolation of the unit from the DC link. Before the unit is reconnected to the DC
link, the capacitors of the inverter module(s) must be charged through a charging circuit.
With frame R1i…R5i inverter units, the DC switch-disconnector controls all of the inverter
modules within that particular cubicle. Each module is additionally fitted with DC fuse
disconnectors or a switch-disconnector. If R1i…R5i units are ordered in their own
compartments (option +C204), the cubicle is equipped with a common DC
switch-disconnector and the modules with dedicated DC switch-disconnectors as standard.
The status of the DC switch-disconnector (as well as module-specific disconnectors of
R1i…R5i modules) is connected to the inverter(s). By default, the inverter is disabled when
the DC switch-disconnector (or a DC fuse disconnector) is open.
WARNING!
Do not operate the DC switch-disconnectors under load.
WARNING!
Do not operate the DC fuse disconnectors under load or under voltage.
WARNING!
With frame n×R8i inverter units, both the DC switch-disconnector [Q2] and the
charging switch [Q10] must be opened to disconnect the inverter unit from the DC
link.
Charging switch (frame R8i and multiples only)
Frame n×R8i inverter units equipped with a DC switch-disconnector (option +F286) have a
charging circuit including an xSFC-02 charging control unit and a charging switch [Q10] on
the cubicle door. Before closing the DC switch-disconnector, the user closes the charging
switch. After the precharging completes, a green light [H1] on the cabinet door illuminates.
The DC switch-disconnector can now be closed, and the charging switch opened.
Hardware description 33
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