Toshiba Tosvert VF-S15 Series Instruction Manual page 46

The operation frequency (frequency command value) of the inverters are calculated using the fol-
lowing equations, with the received data in the following equation used as the data received from
the master inverter when inverters are operated under the control of a master inverter (inter-drive
communication), or with the received data in the following equation used as the data received from
the computer when inverters are operated under the control of a computer (computer-linked opera-
tion).

( fc Hz )
Example:
Master (Fc)
Slave 1
Slave 2
Master send
Slave 1 : ( fc
Slave 2 : ( fc
 If the "Frequency point selection" function is enabled (f810≠0)
When inverters are operated under the control of a mater inverter, the operation frequency (fre-
quency command value) of the slave inverters are calculated using the following equations.
Just as the master inverter is calculated to the data, personal computer has to send the same data.

( fc Hz )
Example:
Master (Fc)
Slave 1
Slave 2
Data sent by the master inverter
Master send
Results of conversions to point frequency (for the equation used, see above.)
Slave 1 : ( fc
Slave 2 : ( fc
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
Slave recieve data (%) Slave
10000
Maximum frequency
100.00Hz (10000)
90.00Hz (9000)
80.00Hz (8000)
Master side

：
data fc (%)
Master

5000 9000
 
Hz ) 4500
10000

5000 800 0
 
Hz ) 4000
10000

Po int 2 frequency Po int 1

Po int 2 Po int 1
Units: Frequency unit 1 = 0.01Hz, Point setting unit 1 = 0.01%
Maximum Point 1 set-
frequency ting
(fh) (f811)
100.00Hz -
(10000)
100.00Hz 0.00%
(10000) (0)
100.00Hz(1 0.00%
0000) (0)
Master side

data : fc (%)
Master

9000 0
 
Hz ) ( 5000

10000 0

8000 0
 
Hz ) ( 5000

10000 0
45
side FH
(Hz)
Unit:1=0.01Hz
Operation frequency command value
50.00Hz (5000)
45.00Hz (4500)
40.00Hz (4000)

×
10000
fc 5000 10000

side FH 10000

45 Hz

40 Hz
frequency

（
Master command
Point 1 fre- Point 2 set-
quency ting
(f812) (f813)
- -
0.00Hz 100.00%
(0) (10000)
0.0Hz 100.00%(10
(0) 000)

×
fc 10000
5000 10000

side FH 10000
  
＋
0 ) 0 4500 45 Hz
  
＋
0 ) 0 4000 40 Hz
E6581913
 
5000 50 %

）＋
(%) Po int 1 Po int 1 frequency
Point 2 fre- Frequency
quency (Fc)
(f814)
- 50.00Hz
(5000)
90.00Hz 45.00Hz
(9000) (4500)
80.00Hz 40.00Hz
(8000) (4000)
 
5000 50 %