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WARNING: If the (50 or 60Hz) constant frequency mode is enabled, the
UPS output(s) must be derated by 25%. Please refer to the fixed
frequency output mode ratings for your model in the specifications
located at the end of this manual.
WARNING: The 50 or 60Hz constant frequency model must not be set if
multiple FN units are to be connected in parallel or used in N+1 mode.
29
Fixed or constant frequency
output mode: In normal mode
the UPS output frequency will
automatically be set to the
utility frequency and is
synchronized with that
frequency. When set to cf50Hz
mode, the UPS inverter output
frequency will always be 50Hz.
When set to cf60Hz mode, the
UPS inverter output frequency
will always be 60Hz.
Setting the UPS to a fixed or
constant output frequency
should be done when the input
source is a generator.
Depress the "Next Page"
button.
The next parameter displayed
shows the inverter output
voltage adjustment. The
adjustment can be set to 0%
(shown), +1%, -1%, +2%, -2%,
+3%or -3% (not shown).
Depress the "Next Page"
button.
The next parameter displayed
shows the UPS unit address.
If only one UPS is being used,
the address should be set to
"d0" as shown.
If multiple parallel UPS units
are connected in a parallel
configuration of up tp 40kVA or
up to 30kVA N+1 operation, the
units would be addressed
"id01", "id02", "id03" and
"id04". See the parallel mode
configuration section on page
42 of this manual for more
details.
Depress the "Next Page"
button.
The next parameter displayed
defins when the UPS is used in
a parallel configuration. The
settings are "P01" and "P02",
If only one UPS is being
configured (not paralleled), the
position should be set to "P01"
as shown. If UPS units are
connected in parallel it should
be set to P02
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