4.4 Caution for operation
r
i-,
r
1. Selection of Operation mode cannot be changed during operation of
operation mode
the inverter.
Note that an operation mode indicator lamp flickers
during operation or the inverter.
When external start signal is on, operation mode cannot
be changed from ” PU operation ” to ” external signal
operation ” (t urn off the signal before changing operation
mode) .
2. Setting of speed
(1) While speed being displayed in. RPM (see P. 901, desired
during speed RPM
speed should be specified in terms of RPM.
setting (2) Speed should not be specified by operating A and
cl
q
V keys (step speed setting) .
3. Digits of numerical
(1) To specify numerical value, maximum 4 -digit numerals
value and decimal
can be entered (if a numerical value of more than
point 4 digits is entered, the first digit is ignored) .
Ex.: 12345 . . . .
” 2345 ” is entered.
(2) When ” 0. * * ” (*
is for any numeral) must be
entered, ” 0 ” should not be omitted.
If
” . * * ”
is entered, it is read as ” * * ” .
4.
Range of setting (1) Direct setting (reference
frequency is set by operating
ten keys)
If a value above the pre-set frequency is entered ir
direct setting, an error occurs.
In this case, ‘press CLEAR key and eter correct
0
value below pre-set valve.
Range of setting . . . From the minimum frequency limit
to the maximum frequency limit
(When the product is shipped, the maximum
and minimum frequency limits are set to
OHz and 120Hz respectively.)
-81-
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