Toshiba TOSVERT VF-P7 Instruction Manual page 52

The reverse characteristic is also possible by changing the setting.
Example of setting 2) In case of 4 to 20mA feedback amount (use the II terminal)

(80 )
Hz

(0Hz)
(4) Process amount reference setting mode selection
Setting mode of reference of the process amount is set with .
Title
: VI (voltage input)/II (current input), : RR (volume/voltage input),
: RX (voltage input), : RX2 (voltage input) (optional), : Operating panel input,

: Binary/BCD input(optional), : Common serial communication option(FA01)
: Serial communication RS485(FA05), : Communication add-on cassette option(FA07)
: Up-down frequency, : Pulse input #1 (optional)
Refer to 7.3 for the scaling adjustment of analog input.
Example of setting) In case of 0 to 10V feedback amount (use the RR terminal)

(80 )
Hz

(0Hz)

Note) Since reference of the process amount is treated as frequency value inside the inverter,
the setting shown in the above figure is needed. Maximum frequency () limits the
reference of process amount after the frequency conversion. Upper limit frequency ()
and lower limit frequency () also limit the reference of process amount after the
frequency conversion. (Refer to the block diagram in 3.3.1)
Two types of reference commands (refer to 6.6) or 15 preset speeds operation (refer to 5.14) are
also be available for reference of the amount of processes.
(5) Acceleration/deceleration time
Set the acceleration time () and the deceleration time () at a smallest value ().
The response of PID control becomes fast. However, when a trip occurs, make setting values of
these parameters larger.
(6) Jump frequency
Jump processing can be performed to the reference of the process amount. At this time, setting
of jump processing is effective to the value after frequency conversion.(Refer to Example of
setting in (4) above.) If you want to avoid resonance by the eigenoscillation frequency of the
mechanical system, set  at 1. Jump processing becomes effective to output frequency.
However in this case, since the jump frequency band turns into non-sensitive band and
hunching between upper and lower side of jump frequency band may occur, resonance is
completely unavoidable. Please be careful enough in use.
Note) Jump processing cannot be performed to both reference of process amount and output
frequency.
4mA 20mA
 
(20%) (100%)
Adjustment range
0V 10V

(0%) (100%)
C-10
Maximum frequency () is
assumed to be 80Hz.