3.3.3 Operation from the terminal(external signal)

[Torque control mode]

■Start/stop

and CC

and CC

are connected : Forward run

are disconnected : Free-run stop

If this connection or disconnection has no effect, check the following parameter.



(Operation command mode selection)

(When terminals

ST

and

CC

are electrically connected)

 

 

 

 

[Example of typical connection]

 

 

Motor

R/L1

U/T1

IM

S/L2

V/T2

 

T/L3

W/T3

 

 

F

Forward run if ON

 

Deceleration stop if OFF

 

S4

ON: Torque control

Operating panel

OFF: Speed control

G/E

CC

 

 

Standby:

 

ST

CC RX II RR PP

On standby if ON,

 

 

Coast stop if OFF

 

 

Voltage signal : -10 to +10V

 

 

Current signal: 4 to 20mA

External potentiometer (or voltage signal RR-CC: 0 to 10 V)

■Torque command

To enter a torque command externally, it is necessary to change a setting according to the input signal. Default setting: Voltage signals ranging from -10 to +10Vdc to RX.

1)Torque setting by means of voltage signals (0 to 10 Vdc)

 

 

 

 

Voltage signal

 

 

 

RX

 

Torque command by means of voltage

 

:Voltage signals 0-±10 Vdc

signals (0 to 10 Vdc)

 

 

 

 

 

 

 

 

 

 

 

100%

 

 

 

 

 

 

 

 

 

 

CC

 

 

 

 

 

 

Positive torque

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-10V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Negative torque

+10V

 

 

 

 

 

 

 

 

 

 

 

 

-100%

Set the torque reference selection  at (RX input). (Default setting)

C-11

Page 49
Image 49
Toshiba VF-A7 Operation from the terminalexternal signal, Start/stop, Torque command, Torque control mode