Toshiba TOSVERT VF-nC3 Instruction Manual page 122

 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 = / setting time
Panel frequency decremental gradient = / 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:
 =  = 1
(/)  (/ setting time)
(/)  (/ setting time)
<<Sample sequence diagram 1: Adjustment with continuous signals>>
Forward / reverse command
UP signal
DOWN signal
Set frequency clearing signal
Upper limit frequency
Lower limit frequency
Frequency 0 Hz
The dotted line denotes the output frequency obtained by combining the slowdown speed and the
panel frequency adjustment speed.
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  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:
,  ≤ Pulse On time
,  = Frequency obtained with each pulse
* The inverter does not respond to any pulses with an ON time shorter than that set with  or
. 12ms or more of clearing signal is allowed.
Gradient f265／f264
F-15
Gradient f267／f266
E6581595
6