E6581697
F-18
6
■ Adjustment with continuous signals (Operation example 1)
Set parameters as follows to adjust the output frequency up or down in proportion to the frequency
adjustment signal input time:
Panel frequency incremental gradient =
f265/f264 setting time
Panel frequency decremental gradient =
f267/f266 setting time
Set parameters as follows to adjust the output frequency up or down almost in synchronization with the
adjustment by the panel frequency command:
f264 = f266 = 1
(
fh/acc) (f265/f264 setting time)
(
fh/dec) (f267/f266 setting time)
<<Sample sequence diagram 1: Adjustment with continuous signals>>
The dotted line denotes the output frequency obtained by combining the slowdown speed and the
panel frequency adjustment speed.
Frequency 0 Hz
Lower limit frequency
Gradient f267／f266
Gradient f265／f264
Upper limit frequency
DOWN signal
UP signal
Forward / reverse command
Set frequency clearing signal
Note: If the operation frequency is set to the lower limit frequency, it will increase from 0Hz when power is
turned on for the first time after the setting, and therefore the output frequency will not rise until the
operation frequency reaches the lower limit frequency. (Operation at the lower limit frequency)
In this case, the time required for the operation frequency to reach the lower limit frequency can be
shortened by setting
fc to the lower limit frequency.
■ Adjustment with pulse signals (Operation example 2)
Set parameters as follows to adjust the frequency in steps of one pulse:
f264, f266 ≤ Pulse On time
f265, f267 = Frequency obtained with each pulse
* The inverter does not respond to any pulses with an ON time shorter than that set with
f264 or
f266. 12ms or more of clearing signal is allowed.
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