20
(7) Multi-speed function
Speed data memorized in function is selected from outside.
It is possible to drive at the speed (frequency and voltage value
or % speed) memorized inside of the controller by using terminals
B1 and B2.
Speed 1 is attained by short-circuiting the terminal B1 to 0V, speed
2 by short-circuiting the terminal B2 to 0V, seed 3 by short-circuiting
both terminals B1 and B2 to 0V, and in case of both terminals being
open, the speed is set by the panel (also refer to “Note on wiring”
below).
Setting of each speed is possible by writing data directly in function
H12~H17 (H18~H20 for constant amplitude mode) or sending the
present value driven on panel to designated speed memory. (Refer to
P.43, P.44 and P. 46)
Group selection of H12~H17 and H18~H20 is changed over
automatically according to setting of driving mode of J05.
Speed No.
Speed 0
Speed1
Speed 2
Speed 3
Voltage setting
Ｈ１２
Ｈ１４
Ｈ１６
Constant voltage mode
Frequency setting
Ｈ１３
Ｈ１５
Ｈ１７
Constant amplitude mode
% speed setting
Panel
Ｈ１８
Ｈ１９
Ｈ２０
Terminal B1
OFF
ON
OFF
ON
Terminal B2
OFF
OFF
ON
ON
＊
ON is short-circuited with 0V, OFF is opened.
＊
Please note that for constant amplitude mode, frequency is fixed to the set value of the panel only by
designating the % speed data.
Note on wiring
The length of the cable connected to signal line such as B1, B2 and 0V shall be within 10m, and be
careful of the noise sufficiently.
速度切替信号
7mA
トランジスタの場合
(ＰＬＣ・センサ等)
24V
0V
IN1
Y1C
Y1A
0V
X1
+V
24V
24V
C2
EM
B1
B2
P0
0V
B2
B1
Ｂ２へ
In case of transistor
(PLC / sensor etc.)
Speed change over
signal
To B2
