Toshiba VF-A7 Welding System User Manual


 
C-11
3.3.3 Operation from the terminal(external signal)
[Torque control mode]
Start/stop
and are connected : Forward run
and are disconnected : Free-run stop
(When terminals and are electrically connected)
[Example of typical connection]
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.
Torque setting by means of voltage signals (0 to 10 Vdc)
oltage signals 0 10 Vdc
Set the torque reference selection  at (RX input). (Default setting)
Positive torque
Negative torque
Voltage signal
Torque command by means of voltage
signals (0 to 10 Vdc)
Motor
IM
G/E
CC RX
II
RR PP
F
S4
CC
R/L1
U/T1
Operating panel
External potentiometer (or voltage signal RR-CC: 0 to 10 V)
Voltage signal : -10 to +10V
Current signal: 4 to 20mA
Standby:
On standby if ON,
Coast stop if OFF
ST
ON: Torque control
OFF: Speed control
V/T2
W/T3
S/L2
T/L3
If this connection or
disconnection has no effect,
check the following parameter.

(Operation command mode
selection)
Forward run if ON
Deceleration stop if OFF