A serial communication protocol supplies commands and
references to the filter, can be used to program the filter,
and reads status data from the filter. The serial bus
connects to the unit through the RS-485/EIA-485 serial
port.
Commands and references to the filter can be accessed via
the USB terminal.
Connector MK103 allows serial communication to be wired
to terminals (+) 68 and (-) 69. Terminal 61 is common and
may be used for terminating shields only when the control
cable run between Danfoss filters or between filters and
Danfoss adjustable frequency drives. Do not use the
common shield between filters and other devices.
For optional add-on communication protocols, see the
instruction manual for the option.
2.5.5 Relay Options
No relays are available for customer use. Additional output
relays are available with the MCB105 relay card option.
This card provides three relays of up to 2 A at 240 V
resistive load or 0.2 A inductive.
2.6 Control Terminals
Control terminals must be programmed. Each terminal has
specific functions it is capable of performing and a
numbered parameter associated with it. See
. The
setting selected in the parameter enables the function of
the terminal.
It is important to confirm that the control terminal is
programmed for the correct function.
Parameter settings are displayed by pressing the [Status]
key on the LCP.
130BP045.10
Status
Quick
Menu
Main
Menu
Alarm
Log
Figure 2.12
Use the arrow keys [
▲
], [
▼
], [
►
] and [
◄
] on the LCP to scroll
through parameters.
Auto
on
Reset
Hand
on
Off
Status
Quick
Menu
Main
Menu
Alarm
Log
Back
Canc
el
In
fo
OK
On
Alarm
Warn.
130BA027.10
Figure 2.13
Consult AAF instruction manuals manual for details on
changing parameters and the functions available for each
control terminal.
In addition, the input terminal must be receiving a signal.
Confirm that the control and power sources are wired to
the terminal. Then check the signal.
Signals can be checked in two ways. Digital input can be
selected for display by pressing [Status] as discussed
previously, or a voltmeter may be used to check for
voltage at the control terminal. In a few cases, the filter
can trip before the signal reads on the voltmeter. See
procedure details at Input Terminal Signal Test in
section
.
In summary, for proper functioning, the filter input control
terminals must be:
•
Wired properly
•
Programmed correctly for the intended function
•
Receiving a signal
Operator Interface and Acti...
VLT Advanced Active Filter AAF006 D and E Frames Service Manual
2-8
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