Setting Frequency Using Two External Signals - Toshiba VFS5 Series Operation Manual

Setting the Frequency using Two External (0 - 10 V Voltage/4 - 20 mA Current)
Signal and Operating using an External Start Signal
1) Connect the cables to the motor and power source.
2) Connect a start/stop switch between the control terminal F and CC
(for forward rotation) or between R and CC (for reverse rotation).
3) Apply two frequency commands to VIA (voltage command) and VIB
(voltage command) or VIB (voltage command) and II (current
command).
External voltage command: Set the command voltage to 0 V.
Apply the command voltage between the control terminal VIA and
CC (on the 0 V side).
External current command: Set the command current to 4 mA.
Apply the command current between the control
terminal II and CC (on the 0 V side).
(See "CONNECTING THE CONTROL SIGNAL.")
4) Turn on the power.
5) Set the parameter CMO8 to "0".
(See "Setting the Starting and
Stopping Methods.")
6) Set the parameter FMO8 to "0".
(See "Setting the Frequency Command
Method.")
7) Specify, using the parameter F200, whether
to give priority to VIB and VIA or II. (See
"Setting the Frequency Command Method.")
8) If the external current command (4 to 20 mA)
is used, set the parameter F201 to "20".
9) "0. 0 " is displayed on the display unit.
10) Turn on the forward or reverse switch.
11) Increase the voltage current command gradually.
12) The specified frequency command is used, when it
is not "0". When it is "0", another frequency command is used.
13) The RUN lamp goes on. The motor starts and its revolution
speed increases gradually.
14) The operation frequency is displayed on the display unit.
15) To stop operation, turn off the forward or reverse switch.
16) The motor revolution speed decreases according to the deceleration pattern.
17) The RUN lamp goes out.
TOSHIBA
Operations (cont'd)
(2) (10) (15)
Forward
(13) (17)
43
(3) (11)
Error reset
0-10V
Reverse
(3) (11)
4-20mA
(9) (14)