Terminal Iv - Toshiba TOSVERT-130G2+ Operation Manual

8.4.2

Terminal IV

Terminal IV (
1st Function key #5 to output exact frequencies based upon specific input
reference signals. These output frequencies do not necessarily have a one-to-
one ratio with the input reference signals. The following graphs and examples
illustrate how this function can be adjusted.
Function Function
No. Name
IV-ref. setting point #1
5 #1 output frequency
IV-ref. setting point #2
#2 output frequency
RR terminal priority
Hz
Max Frequency Factory Setting
(FH) and/or (F-P2)
0Hz (F-P1)
Example: Application requiring the following output characteristics is shown below:
Hz
FH 80
(F-P2) 60
(F-P1) 20
In the above graph the inverter has no output frequency until the input signal has reached 35%
of its maximum. This is due to the linear characteristics of the IV Function. Also notice that the
maximum frequency is reached before 100% of the input signal is applied.
Note:
In most cases the value of UL is less than FH.The value of UL cannot be greater than FH.
Hz
FH 80
(F-P2) 60
(F-P1)40
20
0 40%(P1)
In the above graph the inverter has an output frequency of
20Hz even with a 0% input signal. Also notice that the
maximum output frequency is never reached unless the input
signal goes above 100%. (i.e. a 7Vdc input signal is consid-
ered a 140% input signal when using a 0~5Vdc input.
) is a special terminal which is used in conjunction with
IV CC
Function Parameters
Adjustment
Display Range
0 to 100
0 to Max. frequency
0 to 100
0 to Max. frequency
0: IV terminal input "on"
1: RR terminal input "on"
% INPUT SIGNAL
35% 50% 80% 95% 100%
(P1) (P2)
(F-P2) 60
(F-P1) 40
80%(P2) 100%
8 - 13
Factory
Unit
%
Hz
%
Hz
0%
20%
IV 0V
0mA 4mA
IV
REF 0V
0V
REF
P1=50% of maximum input signal
F-P1=20Hz
P2=80% of maximum input signal
F-P2=60Hz
FH=80Hz
Input Signal
Hz
FH
20
66%
0(P2)
33%
In the above graph the inverter has a negative output. In
other words, as the input signal increases the output
frequency decreases. Notice that at 0% and 100% input
the inverter outputs 60Hz and 0Hz, respectively.
TOSHIBA
Error Ref.
Set Message Page
20 8-23
0 8-23
100 8-23
80 8-23
0 8-23
100%
5Vdc JP1=V
20mAdc
JP1=I
5Vdc JP2=5V
10Vdc
JP2=10V
Input
Signal
100%(P1)