Toshiba Tosvert RS485 Instruction Manual page 39
Rs485 communication function
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Also See for Tosvert RS485:
- Installation manual (8 pages) ,
- Operation manual (10 pages) ,
- User manual (8 pages)
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• If the "Frequency point selection" function is disabled (=)
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).
Slave
recieve
data
=
( fc
Hz
)
Example:
Maximum frequency
Master (Fc)
100.00Hz (10000)
Slave 1
90.00Hz (9000)
Slave 2
80.00Hz (8000)
=
Master
send
data
fc
(%)
：
×
5000
=
Slave
1
:
( fc
Hz
)
10000
×
5000
=
Slave
2
:
( fc
Hz
)
10000
• If the "Frequency point selection" function is enabled (≠)
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.
When inverters are operated under the control of a computer, read "command from the master
inverter" in the following equations as "command from the computer."
Po
int
2
frequency
=
( fc
Hz
)
Po
int
(Hz)
Example: Units: Frequency unit 1 = 0.01Hz, Point setting unit 1 = 0.01%
Maximum
frequency
()
Master (Fc)
100.00Hz
(10000)
Slave 1
100.00Hz
(10000)
Slave 2
100.00Hz(1
0000)
Data sent by the master inverter
=
Master
send
data
:
fc
(%)
Both slaves 1 and 2: Result of a conversion made on the slave side
Slave
receive
data
=
( fc
Hz
)
10000
Both slaves 1 and 2: Result of a conversion to % made prior to a conversion to point frequency
×
( fc
Hz
)
10000
=
fc
(%)
Slave
side
FH
Results of conversions to point frequency (for the equation used, see above.)
−
9000
=
Slave
1
:
( fc
Hz
)
−
10000
−
8000
=
Slave
2
:
( fc
Hz
)
10000
×
(%)
Slave
side
FH
(Hz)
10000
Unit:1=0.01Hz
Operation frequency command value
×
Master
side
fc
10000
=
Master
side
FH
9000
=
=
4500
45
Hz
800
0
=
=
4000
40
Hz
−
Po
int
1
frequency
×
（
Master
−
2
Po
int
1
Point 1
Point 1 fre-
setting
quency
()
()
−
−
0.00%
0.00Hz
(0)
(0)
0.00%
0.0Hz
(0)
(0)
×
Master
side
fc
10000
=
Master
side
FH
×
(%)
Slave
side
FH
5000
=
×
5000
10000
=
=
=
5000
50
10000
0
×
−
=
(
5000
0
)
＋
0
4500
0
0
×
−
=
(
5000
0
)
0
4000
＋
−
0
38
50.00Hz (5000)
45.00Hz (4500)
40.00Hz (4000)
5000
×
10000
=
=
5000
50
10000
−
command
(%)
Po
int
Point 2 set-
Point 2
ting
frequency
()
()
−
−
100.00%
90.00Hz
(10000)
(9000)
100.00%(10
80.00Hz
000)
(8000)
5000
10000
×
=
=
5000
50
10000
×
10000
=
=
5000
50
Hz
10000
%
=
45
Hz
=
40
Hz
E6581315
%
1
）＋
Po
int
1
frequency
Frequency
(Fc)
50.00Hz
(5000)
45.00Hz
(4500)
40.00Hz
(4000)
%
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